16-Bit Microcontroller

68HC812A4 Not Recommended for New Designs
  • This page contains information on a product that is not recommended for new designs.
The MC68HC812A4 microcontroller unit (MCU) is a 16-bit device composed of standard on-chip peripheral modules connected by an intermodule bus. Modules include a 16-bit central processing unit (CPU12), a Lite integration module (LIM), two asynchronous serial communications interfaces (SCI0 and SCI1), a serial peripheral interface (SPI), a timer and pulse accumulation module, an 8-bit analog-to-digital converter (ATD), 1-Kbyte RAM, and memory expansion logic with chip selects, key wakeup ports, and a phase-locked loop (PLL).

Product Details

Block Diagram

Washer Machines Microcontrollers for M68HC05 Family Block Diagram

Washer Machines Microcontrollers for M68HC05 Family Block Diagram
Get diagram PDF

Features

  • Low-Power, High-Speed M68HC12 CPU
  • Power Saving STOP and WAIT Modes
  • Memory
    • 1024-Byte RAM
    • 4096-Byte Electrically Erasable Programmable Read-Only Memory (EEPROM)
    • On-Chip Memory Mapping Allows Expansion to over 5-Mbyte Address Space
  • Single-Wire Background Debug Mode
  • Non-Multiplexed Address and Data Buses
  • Seven Programmable Chip Selects with Clock Stretching (Expanded Modes)
  • 8-Channel, Enhanced 16-Bit Timer with Programmable Prescaler
    • All Channels Configurable as Input Capture or Output Compare
    • Flexible Choice of Clock Source
  • 16-Bit Pulse Accumulator
  • Real-Time Interrupt Circuit
  • Computer Operating Properly (COP) Watchdog
  • Clock Monitor
  • Phase-Locked Loop
  • Two Enhanced Asynchronous Non-Return to Zero (NRZ) Serial Communication Interfaces (SCI)
  • Enhanced Synchronous Serial Peripheral Interface (SPI)
  • 8-Channel, 8-Bit Analog-to-Digital Converter (ATD)
  • Up to 24 Key Wakeup Lines with Interrupt Capability
  • Available in 112-Pin Thin Quad Flat Pack (TQFP) Packaging

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N true 0 PSP68HC812A4en 28 Application Note Application Note t789 16 Data Sheet Data Sheet t520 2 Errata Errata t522 4 Product Change Notice Product Change Notice t526 1 Reference Manual Reference Manual t877 2 Technical Notes Technical Notes t521 3 en_US 0 false en_US en Data Sheet Data Sheet 2 1 7 English MC68HC812A4: The MC68HC812A4 microcontroller unit (MCU) is a 16-bit device composed of standard on-chip peripheral modules connected by an intermodule bus. Modules include: 16-bit central processor unit (CPU12), Lite integration module (LIM), Two asynchronous serial communications interfaces (SCI0 and SCI1), Serial peripheral interface (SPI), Timer and pulse accumulator module, 8-bit analog-to-digital converter (ATD), 1-Kbyte random-access memory (RAM). B966576650131 PSP 1.5 MB None None documents None B966576650131 /docs/en/data-sheet/MC68HC812A4.pdf 1532437 /docs/en/data-sheet/MC68HC812A4.pdf MC68HC812A4 documents N 2000-08-17 MC68HC812A4 - Data Sheet /docs/en/data-sheet/MC68HC812A4.pdf /docs/en/data-sheet/MC68HC812A4.pdf Data Sheet N 980000996212993340 2022-12-07 pdf en May 5, 2006 980000996212993340 Data Sheet Y N MC68HC812A4 - Data Sheet 2 0 English 
Advance information technical data sheet covering the 3 volt version of the 812A4 device. 10hJfnqf PSP 783.2 KB None None documents None 10hJfnqf /docs/en/data-sheet/MC68C812A4.pdf 783208 /docs/en/data-sheet/MC68C812A4.pdf MC68C812A4 documents N 2003-01-06 Technical suppliment document covering the 3 V version of the 812A4. /docs/en/data-sheet/MC68C812A4.pdf /docs/en/data-sheet/MC68C812A4.pdf Data Sheet N 980000996212993340 2022-12-07 pdf en Jul 28, 1998 980000996212993340 Data Sheet Y N Technical suppliment document covering the 3 V version of the 812A4. Reference Manual Reference Manual 2 3 4 English This manual describes the features and operation of the core (central processing unit, or CPU, and development support functions) used in all M68HC12 and HCS12 microcontrollers. The CPU12 is a high-speed, 16-bit processing unit that has a programming model identical to that of the industry standard M68HC11 central processor unit (CPU). The CPU12 instruction set is a proper superset of the M68HC11 instruction set. O966576741768 PSP 3.5 MB Registration without Disclaimer None documents Extended O966576741768 /secured/assets/documents/en/reference-manual/CPU12RM.pdf 3476085 /secured/assets/documents/en/reference-manual/CPU12RM.pdf CPU12RM documents Y N 2016-10-31 CPU12 - Reference Manual /webapp/Download?colCode=CPU12RM /secured/assets/documents/en/reference-manual/CPU12RM.pdf Reference Manual N 500633505221135046 2022-12-07 pdf Y en Mar 30, 2006 500633505221135046 Reference Manual Y N CPU12 - Reference Manual 4 2 English CPU12 Reference Guide A966576739154 PSP 1.3 MB Registration without Disclaimer None documents Extended A966576739154 /secured/assets/documents/en/reference-manual/CPU12RG.pdf 1336997 /secured/assets/documents/en/reference-manual/CPU12RG.pdf CPU12RG documents Y N 2016-10-31 CPU12 Reference Guide /webapp/Download?colCode=CPU12RG /secured/assets/documents/en/reference-manual/CPU12RG.pdf Reference Manual N 500633505221135046 2023-06-18 pdf Y en Nov 26, 2001 500633505221135046 Reference Manual Y N CPU12 Reference Guide Application Note Application Note 16 5 1 Chinese R1029437274857zh PSP 1.8 MB None None documents None R1029437274857 /docs/zh/application-note/AN2321.pdf 1750349 /docs/zh/application-note/AN2321.pdf AN2321 documents N N 2016-10-31 Designing for Board Level Electromagnetic Compatibility /docs/zh/application-note/AN2321.pdf /docs/zh/application-note/AN2321.pdf Application Note N 645036621402383989 2022-12-07 zh 645036621402383989 Application Note N 电路板级的电磁兼容设计 1 English Designing for Board Level Electromagnetic Compatibility R1029437274857 PSP 1.8 MB None None documents None R1029437274857 /docs/en/application-note/AN2321.pdf 1750349 /docs/en/application-note/AN2321.pdf AN2321 documents N N 2016-10-31 Designing for Board Level Electromagnetic Compatibility /docs/en/application-note/AN2321.pdf /docs/en/application-note/AN2321.pdf Application Note N 645036621402383989 2022-12-07 pdf N en Oct 18, 2005 645036621402383989 Application Note Y N Designing for Board Level Electromagnetic Compatibility 6 4 English Discrete Products provide a complete solution for designing a low cost system for direct and accurate liquid level control using an ac powered pump or solenoid valve. This circuit approach which exclusively uses NXP semiconductor parts, incorporates a piezoresistive pressure sensor with on-chip temperature compensation and a new solid-state relay with an integrated power triac, to drive directly the liquid level control equipment from the domestic 110/220V 50/60 Hz ac main power line. N966580685759 PSP 285.7 KB None None documents None N966580685759 /docs/en/application-note/AN1516.pdf 285680 /docs/en/application-note/AN1516.pdf AN1516 documents N N 2016-10-31 AN1516 Liquid Level Control Using a Pressure Sensor /docs/en/application-note/AN1516.pdf /docs/en/application-note/AN1516.pdf Application Note N 645036621402383989 2022-12-07 pdf N en May 16, 2005 645036621402383989 Application Note Y N AN1516 Liquid Level Control Using a Pressure Sensor 7 0 English This application note describes the basic operation of the background debug mode (BDM) and some of its applications, as it relates to Our M68HC12 Family of microcontrollers (MCU). Examples of in-circuit programming of internal FLASH memory and in-circuit debugging, using P&E Microcomputer Systems' BDM interface cable and its software, are also contained in this document. X989427477997 PSP 615.8 KB None None documents None X989427477997 /docs/en/application-note/AN2104.pdf 615791 /docs/en/application-note/AN2104.pdf AN2104 documents N 2001-05-09 Using Background Debug Mode for the M68HC12 Family /docs/en/application-note/AN2104.pdf /docs/en/application-note/AN2104.pdf Application Note N 645036621402383989 2022-12-07 pdf en Feb 2, 2001 645036621402383989 Application Note Y N Using Background Debug Mode for the M68HC12 Family 8 0 English This application note describes a LIN demo that was designed for the SAE show in March 2000. The project was intended to demonstrate the LIN protocol, tools, and NXP products that were available. Although the demo is purely visual and does not represent any particular application, it does introduce many features that would be implemented in actual applications. C978120734892 PSP 1.7 MB None None documents None C978120734892 /docs/en/application-note/AN2103.pdf 1676151 /docs/en/application-note/AN2103.pdf AN2103 documents N N 2016-10-31 Local Interconnect Network (LIN) Demonstration /docs/en/application-note/AN2103.pdf /docs/en/application-note/AN2103.pdf Application Note N 645036621402383989 2022-12-07 pdf N en Dec 1, 2000 645036621402383989 Application Note Y N Local Interconnect Network (LIN) Demonstration 9 0 English This application note describes the three major FLASH EEPROM technologies currently found in the M68HC12, M68HC08, M68HC3xx, and MPC microcontrollers. An explanation of the key characteristics of these memories is provided and the features that enable certain characteristics such as high density and low-power operation. Nonvolatile memory also presents a broad array of new terms to describe EPROM or byte erasable EEPROM memories. P967833968545 PSP 1.2 MB None None documents None P967833968545 /docs/en/application-note/AN1837.pdf 1214970 /docs/en/application-note/AN1837.pdf AN1837 documents N 2000-09-01 Non-Volatile Memory Technology Overview /docs/en/application-note/AN1837.pdf /docs/en/application-note/AN1837.pdf Application Note N 645036621402383989 2022-12-07 pdf en Mar 27, 2000 645036621402383989 Application Note Y N Non-Volatile Memory Technology Overview 10 0 English The operating speed of present HCMOS devices is approaching that of the fastest bipolar logic families of only a few years ago. Associated with this increase in performance are some new design challenges for the MCU-based system designer. Y967833878334 PSP 456.1 KB None None documents None Y967833878334 /docs/en/application-note/AN1050.pdf 456108 /docs/en/application-note/AN1050.pdf AN1050 documents N N 2016-10-31 Designing for Electromagnetic Compatibility (EMC) with HCMOS Microcontrollers /docs/en/application-note/AN1050.pdf /docs/en/application-note/AN1050.pdf Application Note N 645036621402383989 2022-12-07 pdf N en Jan 1, 2000 645036621402383989 Application Note Y N Designing for Electromagnetic Compatibility (EMC) with HCMOS Microcontrollers 11 1 English Many microcontrollers (MCUs) incorporate an inverting amplifier for use with an external crystal or ceramic resonator in a Pierce oscillator configuration. This paper describes how to calculate the minimum gain (transconductance) of the amplifier required to ensure oscillation with specific external components, and also how to measure the amplifier transconductance to establish whether the minimum gain requirement is met. O967833941140 PSP 362.3 KB None None documents None O967833941140 /docs/en/application-note/AN1783.pdf 362263 /docs/en/application-note/AN1783.pdf AN1783 documents N N 2016-10-31 Determining MCU Oscillator Start-Up Parameters /docs/en/application-note/AN1783.pdf /docs/en/application-note/AN1783.pdf Application Note N 645036621402383989 2022-12-07 pdf N en Jan 1, 1999 645036621402383989 Application Note Y N Determining MCU Oscillator Start-Up Parameters 12 0 English This application note focuses on reduction techniques for electromagnetic interference. I966577944756 PSP 439.7 KB None None documents None I966577944756 /docs/en/application-note/AN1705.pdf 439712 /docs/en/application-note/AN1705.pdf AN1705 documents N N 2016-10-31 Noise Reduction Techniques for Microcontroller-Based Systems /docs/en/application-note/AN1705.pdf /docs/en/application-note/AN1705.pdf Application Note N 645036621402383989 2022-12-07 pdf N en Jan 1, 1999 645036621402383989 Application Note Y N Noise Reduction Techniques for Microcontroller-Based Systems 13 0 English This application note presents basic tone synthesis techniques and illustrates their implementation using the HC08, HC05, HC11, and HC12 Families of MCUs. S967833928924 PSP 857.7 KB None None documents None S967833928924 /docs/en/application-note/AN1771.pdf 857671 /docs/en/application-note/AN1771.pdf AN1771 documents N N 2016-10-31 Precision Sine-Wave Tone Synthesis Using 8-Bit MCUs /docs/en/application-note/AN1771.pdf /docs/en/application-note/AN1771.pdf Application Note N 645036621402383989 2022-12-07 pdf N en Jan 1, 1998 645036621402383989 Application Note Y N Precision Sine-Wave Tone Synthesis Using 8-Bit MCUs 14 1 English This application note documents a method of extending digital input using the analog-to-digital converter of an MCU. S967833934540 PSP 459.0 KB None None documents None S967833934540 /docs/en/application-note/AN1775.pdf 458988 /docs/en/application-note/AN1775.pdf AN1775 documents N N 2016-10-31 Expanding Digital Input with an A/D Converter /docs/en/application-note/AN1775.pdf /docs/en/application-note/AN1775.pdf Application Note N 645036621402383989 2022-12-07 pdf N en Jan 1, 1998 645036621402383989 Application Note Y N Expanding Digital Input with an A/D Converter 15 1 English Indexed indirect addressing (IIA) is an addressing mode infrequently found in CPU instruction sets. The IAA mode adds an additional level of indirection beyond standard indexed addressing modes. This application note presents some techniques for making the IIA mode more useful. The efficient instruction set and the addressing mode features of the M68HC12 allow it to compete effectively with RISC processors. D966576629437 PSP 386.6 KB None None documents None D966576629437 /docs/en/application-note/AN1716.pdf 386641 /docs/en/application-note/AN1716.pdf AN1716 documents N 2000-08-17 Using M68HC12 Indexed Indirect Addressing /docs/en/application-note/AN1716.pdf /docs/en/application-note/AN1716.pdf Application Note N 645036621402383989 2022-12-07 pdf en Jan 1, 1997 645036621402383989 Application Note Y N Using M68HC12 Indexed Indirect Addressing 16 0 English This application note provides the details necessary to utilize the D-Bug12 user-callable utility functions. Additionally, it shows how to substitute user interrupt service routines for D-Bug12's default exception handlers. A966576626834 PSP 1.1 MB None None documents None A966576626834 /docs/en/application-note/AN1280A.pdf 1137321 /docs/en/application-note/AN1280A.pdf AN1280A documents N 2000-08-17 Using the Callable Routines in D-Bug12 /docs/en/application-note/AN1280A.pdf /docs/en/application-note/AN1280A.pdf Application Note N 645036621402383989 2022-12-07 pdf en Jan 1, 1997 645036621402383989 Application Note Y N Using the Callable Routines in D-Bug12 17 0 English In general, the CPU12 is a proper superset of the M68HC11 CPU. Significant changes have been made to improve the efficiency and capabilities of the CPU without sacrificing compatibility with the popular M68HC11 family. This note provides information that will allow the large number of programmers familiar with the M68HC11 to evaluate moving from an M68HC11 system to an M68HC12 system. V967156618397 PSP 1.7 MB None None documents None V967156618397 /docs/en/application-note/AN1284.pdf 1686279 /docs/en/application-note/AN1284.pdf AN1284 documents N 2000-08-24 Transporting M68HC11 Code to M68HC12 Devices /docs/en/application-note/AN1284.pdf /docs/en/application-note/AN1284.pdf Application Note N 645036621402383989 2022-12-07 pdf en Jan 1, 1996 645036621402383989 Application Note N N Transporting M68HC11 Code to M68HC12 Devices 18 0 English Using and Extending D-Bug12 Routines A966576624312 PSP 613.3 KB None None documents None A966576624312 /docs/en/application-note/AN1280.pdf 613317 /docs/en/application-note/AN1280.pdf AN1280 documents N 2000-08-17 Using and Extending D-Bug12 Routines /docs/en/application-note/AN1280.pdf /docs/en/application-note/AN1280.pdf Application Note N 645036621402383989 2022-12-07 pdf en Jan 1, 1996 645036621402383989 Application Note N N Using and Extending D-Bug12 Routines 19 0 English This application note discusses how to design a single-chip microcontroller application considering electromagnetic compatibility (EMC). O967833897694 PSP 283.9 KB None None documents None O967833897694 /docs/en/application-note/AN1263.pdf 283939 /docs/en/application-note/AN1263.pdf AN1263 documents N N 2016-10-31 Designing for Electromagnetic Compatibility with Single-Chip Microcontrollers /docs/en/application-note/AN1263.pdf /docs/en/application-note/AN1263.pdf Application Note N 645036621402383989 2022-12-07 pdf N en Jan 1, 1995 645036621402383989 Application Note Y N Designing for Electromagnetic Compatibility with Single-Chip Microcontrollers 20 0 English Focusing on utilizing proven layout techniques to control EMI on MCU-based mixed-signal systems. It provides a practical approach rather than a theoretical discussion. F967833892719 PSP 347.8 KB None None documents None F967833892719 /docs/en/application-note/AN1259.pdf 347790 /docs/en/application-note/AN1259.pdf AN1259 documents N N 2016-10-31 AN1259: System Design and Layout Techniques for Noise Reduction in MCU-Based Systems – Application Note /docs/en/application-note/AN1259.pdf /docs/en/application-note/AN1259.pdf Application Note N 645036621402383989 2022-12-07 pdf N en Jan 1, 1995 645036621402383989 Application Note Y N AN1259: System Design and Layout Techniques for Noise Reduction in MCU-Based Systems – Application Note Technical Notes Technical Notes 3 21 0 English Engineering Bulletin C1024523882098 PSP 239.6 KB None None documents None C1024523882098 /docs/en/engineering-bulletin/EB396.pdf 239585 /docs/en/engineering-bulletin/EB396.pdf EB396 documents N N 2016-10-31 Use of OSC2/XTAL as a Clock Output on Freescale Semiconductor Microcontrollers /docs/en/engineering-bulletin/EB396.pdf /docs/en/engineering-bulletin/EB396.pdf Technical Notes N 389245547230346745 2022-12-07 pdf N en Jun 19, 2002 389245547230346745 Technical Notes Y N Use of OSC2/XTAL as a Clock Output on Freescale Semiconductor Microcontrollers 22 0 English EB350 How to Use the MC68HC812A4 in Special Expanded Narrow Mode Using the M68HC12AEVB M966578011736 PSP 198.7 KB None None documents None M966578011736 /docs/en/engineering-bulletin/EB350.pdf 198749 /docs/en/engineering-bulletin/EB350.pdf EB350 documents N 2000-08-17 How to Use the MC68HC812A4 in Special Expanded Narrow Mode Using the M68HC12AEVB /docs/en/engineering-bulletin/EB350.pdf /docs/en/engineering-bulletin/EB350.pdf Technical Notes N 389245547230346745 2022-12-07 pdf en Jan 1, 2000 389245547230346745 Technical Notes N N How to Use the MC68HC812A4 in Special Expanded Narrow Mode Using the M68HC12AEVB 23 0 English EB335 How to Use the MC68HC812A4 in Single-Chip Mode Using the M68HC12A4EVB X966576644901 PSP 199.9 KB None None documents None X966576644901 /docs/en/engineering-bulletin/EB335.pdf 199907 /docs/en/engineering-bulletin/EB335.pdf EB335 documents N 2000-08-17 How to Use the MC68HC812A4 in Single-Chip Mode Using the M68HC12A4EVB /docs/en/engineering-bulletin/EB335.pdf /docs/en/engineering-bulletin/EB335.pdf Technical Notes N 389245547230346745 2022-12-07 pdf en Jan 1, 2000 389245547230346745 Technical Notes N N How to Use the MC68HC812A4 in Single-Chip Mode Using the M68HC12A4EVB Errata Errata 4 24 1 English This mask set errata applies to this 68HC812A4 MCU mask set: 0L00N. 1098118843268730306585 PSP 76.8 KB None None documents None 1098118843268730306585 /docs/en/errata/MSE812A4_0L00N.pdf 76792 /docs/en/errata/MSE812A4_0L00N.pdf MSE812A4_0L00N documents N 2004-10-18 68HC812A4 Mask Set Errata: 0L00N - Errata /docs/en/errata/MSE812A4_0L00N.pdf /docs/en/errata/MSE812A4_0L00N.pdf Errata N 155452329886410597 2022-12-07 pdf en Oct 18, 2004 155452329886410597 Errata Y N 68HC812A4 Mask Set Errata: 0L00N - Errata 25 1 English This mask set errata applies to this 68HC812A4 MCU mask set: 0K51E. 1098118431093717505588 PSP 77.9 KB None None documents None 1098118431093717505588 /docs/en/errata/MSE812A4_0K51E.pdf 77889 /docs/en/errata/MSE812A4_0K51E.pdf MSE812A4_0K51E documents N 2004-10-18 68HC812A4 Mask Set Errata: 0K51E - Errata /docs/en/errata/MSE812A4_0K51E.pdf /docs/en/errata/MSE812A4_0K51E.pdf Errata N 155452329886410597 2022-12-07 pdf en Oct 18, 2004 155452329886410597 Errata Y N 68HC812A4 Mask Set Errata: 0K51E - Errata 26 2 English HC812AV4 Device Information Sheet: 00H50F Mask Sets Y966576690168 PSP 47.6 KB None None documents None Y966576690168 /docs/en/errata/68HC812A4MSE2.pdf 47583 /docs/en/errata/68HC812A4MSE2.pdf 68HC812A4MSE2 documents N 2000-08-17 HC812AV4 Device Information Sheet: 01H73K Mask Sets /docs/en/errata/68HC812A4MSE2.pdf /docs/en/errata/68HC812A4MSE2.pdf Errata N 155452329886410597 2022-12-07 pdf en Aug 25, 1999 155452329886410597 Errata N N HC812AV4 Device Information Sheet: 01H73K Mask Sets 27 1 English HC812AV4 Device Information Sheet: 00H50F Mask Sets Z966576687543 PSP 65.4 KB None None documents None Z966576687543 /docs/en/errata/68HC812A4MSE1.pdf 65391 /docs/en/errata/68HC812A4MSE1.pdf 68HC812A4MSE1 documents N 2000-08-17 HC812AV4 Device Information Sheet: 00H50F Mask Sets /docs/en/errata/68HC812A4MSE1.pdf /docs/en/errata/68HC812A4MSE1.pdf Errata N 155452329886410597 2022-12-07 pdf en Apr 2, 1998 155452329886410597 Errata N N HC812AV4 Device Information Sheet: 00H50F Mask Sets Product Change Notice Product Change Notice 1 28 0 English 1400655187257698150893 PSP 311.5 KB None None documents None 1400655187257698150893 /docs/en/product-change-notice/PCN16235.htm 311474 /docs/en/product-change-notice/PCN16235.htm PCN16235 documents N 2014-05-20 Copper Wire Conversion for Microcontroller and Microprocessor Devices /docs/en/product-change-notice/PCN16235.htm /docs/en/product-change-notice/PCN16235.htm Product Change Notice N 454076741825495278 2022-12-07 htm en May 20, 2014 454076741825495278 Product Change Notice D N Copper Wire Conversion for Microcontroller and Microprocessor Devices false 0 68HC812A4 downloads en true 1 Y PSP Application Note 16 /docs/en/application-note/AN2321.pdf 2016-10-31 R1029437274857 PSP 5 Oct 18, 2005 Application Note Designing for Board Level Electromagnetic Compatibility None /docs/en/application-note/AN2321.pdf English documents 1750349 None 645036621402383989 2022-12-07 N /docs/en/application-note/AN2321.pdf Designing for Board Level Electromagnetic Compatibility /docs/en/application-note/AN2321.pdf documents 645036621402383989 Application Note N en None Y pdf 1 N N Designing for Board Level Electromagnetic Compatibility 1.8 MB AN2321 N R1029437274857 /docs/en/application-note/AN1516.pdf 2016-10-31 N966580685759 PSP 6 May 16, 2005 Application Note Discrete Products provide a complete solution for designing a low cost system for direct and accurate liquid level control using an ac powered pump or solenoid valve. This circuit approach which exclusively uses NXP semiconductor parts, incorporates a piezoresistive pressure sensor with on-chip temperature compensation and a new solid-state relay with an integrated power triac, to drive directly the liquid level control equipment from the domestic 110/220V 50/60 Hz ac main power line. None /docs/en/application-note/AN1516.pdf English documents 285680 None 645036621402383989 2022-12-07 N /docs/en/application-note/AN1516.pdf AN1516 Liquid Level Control Using a Pressure Sensor /docs/en/application-note/AN1516.pdf documents 645036621402383989 Application Note N en None Y pdf 4 N N AN1516 Liquid Level Control Using a Pressure Sensor 285.7 KB AN1516 N N966580685759 /docs/en/application-note/AN2104.pdf 2001-05-09 X989427477997 PSP 7 Feb 2, 2001 Application Note This application note describes the basic operation of the background debug mode (BDM) and some of its applications, as it relates to Our M68HC12 Family of microcontrollers (MCU). Examples of in-circuit programming of internal FLASH memory and in-circuit debugging, using P&E Microcomputer Systems' BDM interface cable and its software, are also contained in this document. None /docs/en/application-note/AN2104.pdf English documents 615791 None 645036621402383989 2022-12-07 /docs/en/application-note/AN2104.pdf Using Background Debug Mode for the M68HC12 Family /docs/en/application-note/AN2104.pdf documents 645036621402383989 Application Note N en None Y pdf 0 N Using Background Debug Mode for the M68HC12 Family 615.8 KB AN2104 N X989427477997 /docs/en/application-note/AN2103.pdf 2016-10-31 C978120734892 PSP 8 Dec 1, 2000 Application Note This application note describes a LIN demo that was designed for the SAE show in March 2000. The project was intended to demonstrate the LIN protocol, tools, and NXP products that were available. Although the demo is purely visual and does not represent any particular application, it does introduce many features that would be implemented in actual applications. None /docs/en/application-note/AN2103.pdf English documents 1676151 None 645036621402383989 2022-12-07 N /docs/en/application-note/AN2103.pdf Local Interconnect Network (LIN) Demonstration /docs/en/application-note/AN2103.pdf documents 645036621402383989 Application Note N en None Y pdf 0 N N Local Interconnect Network (LIN) Demonstration 1.7 MB AN2103 N C978120734892 /docs/en/application-note/AN1837.pdf 2000-09-01 P967833968545 PSP 9 Mar 27, 2000 Application Note This application note describes the three major FLASH EEPROM technologies currently found in the M68HC12, M68HC08, M68HC3xx, and MPC microcontrollers. An explanation of the key characteristics of these memories is provided and the features that enable certain characteristics such as high density and low-power operation. Nonvolatile memory also presents a broad array of new terms to describe EPROM or byte erasable EEPROM memories. None /docs/en/application-note/AN1837.pdf English documents 1214970 None 645036621402383989 2022-12-07 /docs/en/application-note/AN1837.pdf Non-Volatile Memory Technology Overview /docs/en/application-note/AN1837.pdf documents 645036621402383989 Application Note N en None Y pdf 0 N Non-Volatile Memory Technology Overview 1.2 MB AN1837 N P967833968545 /docs/en/application-note/AN1050.pdf 2016-10-31 Y967833878334 PSP 10 Jan 1, 2000 Application Note The operating speed of present HCMOS devices is approaching that of the fastest bipolar logic families of only a few years ago. Associated with this increase in performance are some new design challenges for the MCU-based system designer. None /docs/en/application-note/AN1050.pdf English documents 456108 None 645036621402383989 2022-12-07 N /docs/en/application-note/AN1050.pdf Designing for Electromagnetic Compatibility (EMC) with HCMOS Microcontrollers /docs/en/application-note/AN1050.pdf documents 645036621402383989 Application Note N en None Y pdf 0 N N Designing for Electromagnetic Compatibility (EMC) with HCMOS Microcontrollers 456.1 KB AN1050 N Y967833878334 /docs/en/application-note/AN1783.pdf 2016-10-31 O967833941140 PSP 11 Jan 1, 1999 Application Note Many microcontrollers (MCUs) incorporate an inverting amplifier for use with an external crystal or ceramic resonator in a Pierce oscillator configuration. This paper describes how to calculate the minimum gain (transconductance) of the amplifier required to ensure oscillation with specific external components, and also how to measure the amplifier transconductance to establish whether the minimum gain requirement is met. None /docs/en/application-note/AN1783.pdf English documents 362263 None 645036621402383989 2022-12-07 N /docs/en/application-note/AN1783.pdf Determining MCU Oscillator Start-Up Parameters /docs/en/application-note/AN1783.pdf documents 645036621402383989 Application Note N en None Y pdf 1 N N Determining MCU Oscillator Start-Up Parameters 362.3 KB AN1783 N O967833941140 /docs/en/application-note/AN1705.pdf 2016-10-31 I966577944756 PSP 12 Jan 1, 1999 Application Note This application note focuses on reduction techniques for electromagnetic interference. None /docs/en/application-note/AN1705.pdf English documents 439712 None 645036621402383989 2022-12-07 N /docs/en/application-note/AN1705.pdf Noise Reduction Techniques for Microcontroller-Based Systems /docs/en/application-note/AN1705.pdf documents 645036621402383989 Application Note N en None Y pdf 0 N N Noise Reduction Techniques for Microcontroller-Based Systems 439.7 KB AN1705 N I966577944756 /docs/en/application-note/AN1771.pdf 2016-10-31 S967833928924 PSP 13 Jan 1, 1998 Application Note This application note presents basic tone synthesis techniques and illustrates their implementation using the HC08, HC05, HC11, and HC12 Families of MCUs. None /docs/en/application-note/AN1771.pdf English documents 857671 None 645036621402383989 2022-12-07 N /docs/en/application-note/AN1771.pdf Precision Sine-Wave Tone Synthesis Using 8-Bit MCUs /docs/en/application-note/AN1771.pdf documents 645036621402383989 Application Note N en None Y pdf 0 N N Precision Sine-Wave Tone Synthesis Using 8-Bit MCUs 857.7 KB AN1771 N S967833928924 /docs/en/application-note/AN1775.pdf 2016-10-31 S967833934540 PSP 14 Jan 1, 1998 Application Note This application note documents a method of extending digital input using the analog-to-digital converter of an MCU. None /docs/en/application-note/AN1775.pdf English documents 458988 None 645036621402383989 2022-12-07 N /docs/en/application-note/AN1775.pdf Expanding Digital Input with an A/D Converter /docs/en/application-note/AN1775.pdf documents 645036621402383989 Application Note N en None Y pdf 1 N N Expanding Digital Input with an A/D Converter 459.0 KB AN1775 N S967833934540 /docs/en/application-note/AN1716.pdf 2000-08-17 D966576629437 PSP 15 Jan 1, 1997 Application Note Indexed indirect addressing (IIA) is an addressing mode infrequently found in CPU instruction sets. The IAA mode adds an additional level of indirection beyond standard indexed addressing modes. This application note presents some techniques for making the IIA mode more useful. The efficient instruction set and the addressing mode features of the M68HC12 allow it to compete effectively with RISC processors. None /docs/en/application-note/AN1716.pdf English documents 386641 None 645036621402383989 2022-12-07 /docs/en/application-note/AN1716.pdf Using M68HC12 Indexed Indirect Addressing /docs/en/application-note/AN1716.pdf documents 645036621402383989 Application Note N en None Y pdf 1 N Using M68HC12 Indexed Indirect Addressing 386.6 KB AN1716 N D966576629437 /docs/en/application-note/AN1280A.pdf 2000-08-17 A966576626834 PSP 16 Jan 1, 1997 Application Note This application note provides the details necessary to utilize the D-Bug12 user-callable utility functions. Additionally, it shows how to substitute user interrupt service routines for D-Bug12's default exception handlers. None /docs/en/application-note/AN1280A.pdf English documents 1137321 None 645036621402383989 2022-12-07 /docs/en/application-note/AN1280A.pdf Using the Callable Routines in D-Bug12 /docs/en/application-note/AN1280A.pdf documents 645036621402383989 Application Note N en None Y pdf 0 N Using the Callable Routines in D-Bug12 1.1 MB AN1280A N A966576626834 /docs/en/application-note/AN1284.pdf 2000-08-24 V967156618397 PSP 17 Jan 1, 1996 Application Note In general, the CPU12 is a proper superset of the M68HC11 CPU. Significant changes have been made to improve the efficiency and capabilities of the CPU without sacrificing compatibility with the popular M68HC11 family. This note provides information that will allow the large number of programmers familiar with the M68HC11 to evaluate moving from an M68HC11 system to an M68HC12 system. None /docs/en/application-note/AN1284.pdf English documents 1686279 None 645036621402383989 2022-12-07 /docs/en/application-note/AN1284.pdf Transporting M68HC11 Code to M68HC12 Devices /docs/en/application-note/AN1284.pdf documents 645036621402383989 Application Note N en None N pdf 0 N Transporting M68HC11 Code to M68HC12 Devices 1.7 MB AN1284 N V967156618397 /docs/en/application-note/AN1280.pdf 2000-08-17 A966576624312 PSP 18 Jan 1, 1996 Application Note Using and Extending D-Bug12 Routines None /docs/en/application-note/AN1280.pdf English documents 613317 None 645036621402383989 2022-12-07 /docs/en/application-note/AN1280.pdf Using and Extending D-Bug12 Routines /docs/en/application-note/AN1280.pdf documents 645036621402383989 Application Note N en None N pdf 0 N Using and Extending D-Bug12 Routines 613.3 KB AN1280 N A966576624312 /docs/en/application-note/AN1263.pdf 2016-10-31 O967833897694 PSP 19 Jan 1, 1995 Application Note This application note discusses how to design a single-chip microcontroller application considering electromagnetic compatibility (EMC). None /docs/en/application-note/AN1263.pdf English documents 283939 None 645036621402383989 2022-12-07 N /docs/en/application-note/AN1263.pdf Designing for Electromagnetic Compatibility with Single-Chip Microcontrollers /docs/en/application-note/AN1263.pdf documents 645036621402383989 Application Note N en None Y pdf 0 N N Designing for Electromagnetic Compatibility with Single-Chip Microcontrollers 283.9 KB AN1263 N O967833897694 /docs/en/application-note/AN1259.pdf 2016-10-31 F967833892719 PSP 20 Jan 1, 1995 Application Note Focusing on utilizing proven layout techniques to control EMI on MCU-based mixed-signal systems. It provides a practical approach rather than a theoretical discussion. None /docs/en/application-note/AN1259.pdf English documents 347790 None 645036621402383989 2022-12-07 N /docs/en/application-note/AN1259.pdf AN1259: System Design and Layout Techniques for Noise Reduction in MCU-Based Systems – Application Note /docs/en/application-note/AN1259.pdf documents 645036621402383989 Application Note N en None Y pdf 0 N N AN1259: System Design and Layout Techniques for Noise Reduction in MCU-Based Systems – Application Note 347.8 KB AN1259 N F967833892719 Data Sheet 2 /docs/en/data-sheet/MC68HC812A4.pdf 2000-08-17 B966576650131 PSP 1 May 5, 2006 Data Sheet MC68HC812A4: The MC68HC812A4 microcontroller unit (MCU) is a 16-bit device composed of standard on-chip peripheral modules connected by an intermodule bus. Modules include: 16-bit central processor unit (CPU12), Lite integration module (LIM), Two asynchronous serial communications interfaces (SCI0 and SCI1), Serial peripheral interface (SPI), Timer and pulse accumulator module, 8-bit analog-to-digital converter (ATD), 1-Kbyte random-access memory (RAM). None /docs/en/data-sheet/MC68HC812A4.pdf English documents 1532437 None 980000996212993340 2022-12-07 /docs/en/data-sheet/MC68HC812A4.pdf MC68HC812A4 - Data Sheet /docs/en/data-sheet/MC68HC812A4.pdf documents 980000996212993340 Data Sheet N en None Y pdf 7 N MC68HC812A4 - Data Sheet 1.5 MB MC68HC812A4 N B966576650131 /docs/en/data-sheet/MC68C812A4.pdf 2003-01-06 10hJfnqf PSP 2 Jul 28, 1998 Data Sheet 
Advance information technical data sheet covering the 3 volt version of the 812A4 device. None /docs/en/data-sheet/MC68C812A4.pdf English documents 783208 None 980000996212993340 2022-12-07 /docs/en/data-sheet/MC68C812A4.pdf Technical suppliment document covering the 3 V version of the 812A4. /docs/en/data-sheet/MC68C812A4.pdf documents 980000996212993340 Data Sheet N en None Y pdf 0 N Technical suppliment document covering the 3 V version of the 812A4. 783.2 KB MC68C812A4 N 10hJfnqf Errata 4 /docs/en/errata/MSE812A4_0L00N.pdf 2004-10-18 1098118843268730306585 PSP 24 Oct 18, 2004 Errata This mask set errata applies to this 68HC812A4 MCU mask set: 0L00N. None /docs/en/errata/MSE812A4_0L00N.pdf English documents 76792 None 155452329886410597 2022-12-07 /docs/en/errata/MSE812A4_0L00N.pdf 68HC812A4 Mask Set Errata: 0L00N - Errata /docs/en/errata/MSE812A4_0L00N.pdf documents 155452329886410597 Errata N en None Y pdf 1 N 68HC812A4 Mask Set Errata: 0L00N - Errata 76.8 KB MSE812A4_0L00N N 1098118843268730306585 /docs/en/errata/MSE812A4_0K51E.pdf 2004-10-18 1098118431093717505588 PSP 25 Oct 18, 2004 Errata This mask set errata applies to this 68HC812A4 MCU mask set: 0K51E. None /docs/en/errata/MSE812A4_0K51E.pdf English documents 77889 None 155452329886410597 2022-12-07 /docs/en/errata/MSE812A4_0K51E.pdf 68HC812A4 Mask Set Errata: 0K51E - Errata /docs/en/errata/MSE812A4_0K51E.pdf documents 155452329886410597 Errata N en None Y pdf 1 N 68HC812A4 Mask Set Errata: 0K51E - Errata 77.9 KB MSE812A4_0K51E N 1098118431093717505588 /docs/en/errata/68HC812A4MSE2.pdf 2000-08-17 Y966576690168 PSP 26 Aug 25, 1999 Errata HC812AV4 Device Information Sheet: 00H50F Mask Sets None /docs/en/errata/68HC812A4MSE2.pdf English documents 47583 None 155452329886410597 2022-12-07 /docs/en/errata/68HC812A4MSE2.pdf HC812AV4 Device Information Sheet: 01H73K Mask Sets /docs/en/errata/68HC812A4MSE2.pdf documents 155452329886410597 Errata N en None N pdf 2 N HC812AV4 Device Information Sheet: 01H73K Mask Sets 47.6 KB 68HC812A4MSE2 N Y966576690168 /docs/en/errata/68HC812A4MSE1.pdf 2000-08-17 Z966576687543 PSP 27 Apr 2, 1998 Errata HC812AV4 Device Information Sheet: 00H50F Mask Sets None /docs/en/errata/68HC812A4MSE1.pdf English documents 65391 None 155452329886410597 2022-12-07 /docs/en/errata/68HC812A4MSE1.pdf HC812AV4 Device Information Sheet: 00H50F Mask Sets /docs/en/errata/68HC812A4MSE1.pdf documents 155452329886410597 Errata N en None N pdf 1 N HC812AV4 Device Information Sheet: 00H50F Mask Sets 65.4 KB 68HC812A4MSE1 N Z966576687543 Product Change Notice 1 /docs/en/product-change-notice/PCN16235.htm 2014-05-20 1400655187257698150893 PSP 28 May 20, 2014 Product Change Notice None /docs/en/product-change-notice/PCN16235.htm English documents 311474 None 454076741825495278 2022-12-07 /docs/en/product-change-notice/PCN16235.htm Copper Wire Conversion for Microcontroller and Microprocessor Devices /docs/en/product-change-notice/PCN16235.htm documents 454076741825495278 Product Change Notice N en None D htm 0 N Copper Wire Conversion for Microcontroller and Microprocessor Devices 311.5 KB PCN16235 N 1400655187257698150893 Reference Manual 2 /secured/assets/documents/en/reference-manual/CPU12RM.pdf 2016-10-31 O966576741768 PSP 3 Mar 30, 2006 Reference Manual This manual describes the features and operation of the core (central processing unit, or CPU, and development support functions) used in all M68HC12 and HCS12 microcontrollers. The CPU12 is a high-speed, 16-bit processing unit that has a programming model identical to that of the industry standard M68HC11 central processor unit (CPU). The CPU12 instruction set is a proper superset of the M68HC11 instruction set. Registration without Disclaimer /secured/assets/documents/en/reference-manual/CPU12RM.pdf English documents 3476085 None 500633505221135046 2022-12-07 Y /webapp/Download?colCode=CPU12RM CPU12 - Reference Manual /secured/assets/documents/en/reference-manual/CPU12RM.pdf documents 500633505221135046 Reference Manual N en Extended Y pdf 4 Y N CPU12 - Reference Manual 3.5 MB CPU12RM N O966576741768 /secured/assets/documents/en/reference-manual/CPU12RG.pdf 2016-10-31 A966576739154 PSP 4 Nov 26, 2001 Reference Manual CPU12 Reference Guide Registration without Disclaimer /secured/assets/documents/en/reference-manual/CPU12RG.pdf English documents 1336997 None 500633505221135046 2023-06-18 Y /webapp/Download?colCode=CPU12RG CPU12 Reference Guide /secured/assets/documents/en/reference-manual/CPU12RG.pdf documents 500633505221135046 Reference Manual N en Extended Y pdf 2 Y N CPU12 Reference Guide 1.3 MB CPU12RG N A966576739154 Technical Notes 3 /docs/en/engineering-bulletin/EB396.pdf 2016-10-31 C1024523882098 PSP 21 Jun 19, 2002 Technical Notes Engineering Bulletin None /docs/en/engineering-bulletin/EB396.pdf English documents 239585 None 389245547230346745 2022-12-07 N /docs/en/engineering-bulletin/EB396.pdf Use of OSC2/XTAL as a Clock Output on Freescale Semiconductor Microcontrollers /docs/en/engineering-bulletin/EB396.pdf documents 389245547230346745 Technical Notes N en None Y pdf 0 N N Use of OSC2/XTAL as a Clock Output on Freescale Semiconductor Microcontrollers 239.6 KB EB396 N C1024523882098 /docs/en/engineering-bulletin/EB350.pdf 2000-08-17 M966578011736 PSP 22 Jan 1, 2000 Technical Notes EB350 How to Use the MC68HC812A4 in Special Expanded Narrow Mode Using the M68HC12AEVB None /docs/en/engineering-bulletin/EB350.pdf English documents 198749 None 389245547230346745 2022-12-07 /docs/en/engineering-bulletin/EB350.pdf How to Use the MC68HC812A4 in Special Expanded Narrow Mode Using the M68HC12AEVB /docs/en/engineering-bulletin/EB350.pdf documents 389245547230346745 Technical Notes N en None N pdf 0 N How to Use the MC68HC812A4 in Special Expanded Narrow Mode Using the M68HC12AEVB 198.7 KB EB350 N M966578011736 /docs/en/engineering-bulletin/EB335.pdf 2000-08-17 X966576644901 PSP 23 Jan 1, 2000 Technical Notes EB335 How to Use the MC68HC812A4 in Single-Chip Mode Using the M68HC12A4EVB None /docs/en/engineering-bulletin/EB335.pdf English documents 199907 None 389245547230346745 2022-12-07 /docs/en/engineering-bulletin/EB335.pdf How to Use the MC68HC812A4 in Single-Chip Mode Using the M68HC12A4EVB /docs/en/engineering-bulletin/EB335.pdf documents 389245547230346745 Technical Notes N en None N pdf 0 N How to Use the MC68HC812A4 in Single-Chip Mode Using the M68HC12A4EVB 199.9 KB EB335 N X966576644901 true Y Products

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