68HC705C8A|8-bit Microcontroller (MCU) | NXP Semiconductors

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The 68HC705C8a microcomputer (MCU) is a member of Our M68HC05 family of low-cost single-chip microcomputers. This 8-bit MCU includes keyboard scanning logic, a high current pin, a COP watchdog timer, and read-only (ROM) security feature.

Application Notes

Product Details

Block Diagram

Washer Machines Microcontrollers for M68HC05 Family Block Diagram

Get diagram PDF

Features

68HC05 CPU
- 8Kbytes EPROM
- 304 bytes RAM
Timer System
- 16-bit Capture/Compare Timer system
- Computer Operating Properly Watchdog Timer
24 Bidirectional I/O Lines and 7 Input-Only lines
On-Chip Oscillator with Crystal/Ceramic Resonator
Fully Static Operation
Serial Communications
- Asynchronous Serial Communications Interface (SCI)
- Synchronous Serial Peripheral Interface (SPI)

Documentation

Quick reference to our documentation types.

1-10 of 47 documents

Compact List

AN1516 Liquid Level Control Using a Pressure Sensor[AN1516]

PDFMay 16, 2005Rev 4
Software SCI Routines with the 16-Bit Timer Module[AN1818]

PDFNov 22, 2004Rev 1
Migrating from the MC68HC705K1 to the MC68HC705KJ1[AN1746]

PDFNov 10, 2003Rev 0
MISC Bus Follower Switch Node[AN1688]

PDFJul 11, 2002Rev 0
Software SCI Implementation to the MISC Communication Protocol[AN1667]

PDFJul 10, 2002Rev 0
Pulse Generation and Detection with Microcontroller Units[AN1067]

PDFMay 31, 2002Rev 1
Using the Serial Peripheral Interface to Communicate Between Multiple Microcomputers[AN991]

PDFJan 28, 2002Rev 1
Digital Direct Current Ignition System Using HC08 Microcontrollers[AN2159]

PDFNov 20, 2001Rev 0
J1850 Multiplex Bus Communication Using the MC68HC705C8 and the SC371016 J1850 Communications Interface (JCI)[AN1212]

PDFNov 13, 2001Rev 1
Interfacing the MC68HC05C5 SIOP to an I2C Peripheral[AN1066]

PDFNov 1, 2001Rev 1
Data Structures for 8-Bit Microcontrollers[AN1752]

PDFMay 7, 2001Rev 1
Local Interconnect Network (LIN) Demonstration[AN2103]

PDFDec 1, 2000Rev 0
Digital Captive Discharge Ignition System Using HC05/HC08 8-Bit Microcontrollers[AN4006]

PDFMar 27, 2000Rev 0
Designing for Electromagnetic Compatibility (EMC) with HCMOS Microcontrollers[AN1050]

PDFJan 1, 2000Rev 0
Software I2C Communications[AN1820]

PDFJan 1, 1999Rev 0
Noise Reduction Techniques for Microcontroller-Based Systems[AN1705]

PDFJan 1, 1999Rev 0
Interfacing the MC68HC705C8A to the DS2430A 256-Bit 1-Wire EEPROM[AN1755]

PDFJan 1, 1998Rev 0
Precision Sine-Wave Tone Synthesis Using 8-Bit MCUs[AN1771]

PDFJan 1, 1998Rev 0
Add Addressable Switches to the HC05[AN1758]

PDFJan 1, 1998Rev 0
Expanding Digital Input with an A/D Converter[AN1775]

PDFJan 1, 1998Rev 1
Add a Unique Silicon Serial Number to the HC05[AN1757]

PDFJan 1, 1998Rev 0
Resetting Microcontrollers During Power Transitions[AN1744]

PDFJan 1, 1998Rev 0
Pulse Width Modulation Using the 16-Bit Timer[AN1734]

PDFJan 1, 1998Rev 0
Interfacing the MC68HC705C8A to the X76F041 PASS SecureFlash[AN1761]

PDFJan 1, 1998Rev 0
Interfacing the HC705C8A to an LCD Module[AN1745]

PDFJan 1, 1998Rev 0
Interfacing MC68HC05 Microcontrollers to the IBM AT Keyboard Interface[AN1723]

PDFOct 30, 1997Rev 0
Interfacing the M68HC05 MCU to the MC145051 A/D Converter[AN1228.PDF]

PDFJan 1, 1997Rev 2
Using 9346 Series Serial EEPROMs with 6805 Series Microcontrollers[AN1227]

PDFJan 1, 1997Rev 1
Let the MC68HC705 Program Itself[AN499]

PDFJul 1, 1996Rev 0
Adding a Voice User Interface to M68HC05 Applications[AN1292]

PDFJan 1, 1996Rev 0
Use of the 68HC705C8A in Place of a 68HC705C8[AN1226]

PDFJan 1, 1996Rev 4
Variations in the M68HC(7)05Cx Family[AN1298]

PDFJan 1, 1996Rev 0
Simple Real-Time Kernels for M68HC05 Microcontrollers[AN1262]

PDFJan 1, 1995Rev 0
Designing for Electromagnetic Compatibility with Single-Chip Microcontrollers[AN1263]

PDFJan 1, 1995Rev 0
AN1259: System Design and Layout Techniques for Noise Reduction in MCU-Based Systems – Application Note[AN1259]

PDFJan 1, 1995Rev 0
Interfacing the HC05 MCU to a Multichannel Digital-to-Analog Converter Using the MC68HC705C8A and the MC68HC705J1A[AN1256]

PDFJan 1, 1995Rev 1.1
MC68HC05SR3 and MC68HC705SR3 Design Notes[AN-HK-22]

PDFJan 1, 1994Rev 0
MC6805R3 and MC68HC05SR3 Technical Comparison[AN-HK-23]

PDFJan 1, 1994Rev 0
Simple A/D for MCUs without Built-In A/D Converters[AN477]

PDFJan 1, 1993Rev 0
Software Driver Routines for the MC68HC05 CAN Module[AN464]

PDFJan 1, 1993Rev 0
Arithmetic Waveform Synthesis with the HC05/08 MCUs[AN1222]

PDFJan 1, 1993Rev 0
68HC05K0 Infra-red Remote Control[AN463]

PDFJan 1, 1992Rev 0
Driving LCDs with M6805 Microprocessors[AN442]

PDFJan 1, 1991Rev 0
M6805 16-Bit Support Macros[AN1055]

PDFJan 1, 1990Rev 0
MC68HC05B4 Radio Synthesizer[ANE416]

PDFJan 1, 1988Rev 0

Microcontroller

Product Details

Block Diagram

Washer Machines Microcontrollers for M68HC05 Family Block Diagram

Features

Documentation

Filter by

Application Note (45)

AN1516 Liquid Level Control Using a Pressure Sensor[AN1516]

Software SCI Routines with the 16-Bit Timer Module[AN1818]

Migrating from the MC68HC705K1 to the MC68HC705KJ1[AN1746]

MISC Bus Follower Switch Node[AN1688]

Software SCI Implementation to the MISC Communication Protocol[AN1667]

Pulse Generation and Detection with Microcontroller Units[AN1067]

Using the Serial Peripheral Interface to Communicate Between Multiple Microcomputers[AN991]

Digital Direct Current Ignition System Using HC08 Microcontrollers[AN2159]

J1850 Multiplex Bus Communication Using the MC68HC705C8 and the SC371016 J1850 Communications Interface (JCI)[AN1212]

Interfacing the MC68HC05C5 SIOP to an I2C Peripheral[AN1066]

Data Structures for 8-Bit Microcontrollers[AN1752]

Local Interconnect Network (LIN) Demonstration[AN2103]

Digital Captive Discharge Ignition System Using HC05/HC08 8-Bit Microcontrollers[AN4006]

Designing for Electromagnetic Compatibility (EMC) with HCMOS Microcontrollers[AN1050]

Software I2C Communications[AN1820]

Noise Reduction Techniques for Microcontroller-Based Systems[AN1705]

Interfacing the MC68HC705C8A to the DS2430A 256-Bit 1-Wire EEPROM[AN1755]

Precision Sine-Wave Tone Synthesis Using 8-Bit MCUs[AN1771]

Add Addressable Switches to the HC05[AN1758]

Expanding Digital Input with an A/D Converter[AN1775]

Add a Unique Silicon Serial Number to the HC05[AN1757]

Resetting Microcontrollers During Power Transitions[AN1744]

Pulse Width Modulation Using the 16-Bit Timer[AN1734]

Interfacing the MC68HC705C8A to the X76F041 PASS SecureFlash[AN1761]

Interfacing the HC705C8A to an LCD Module[AN1745]

Interfacing MC68HC05 Microcontrollers to the IBM AT Keyboard Interface[AN1723]

Interfacing the M68HC05 MCU to the MC145051 A/D Converter[AN1228.PDF]

Using 9346 Series Serial EEPROMs with 6805 Series Microcontrollers[AN1227]

Let the MC68HC705 Program Itself[AN499]

Adding a Voice User Interface to M68HC05 Applications[AN1292]

Use of the 68HC705C8A in Place of a 68HC705C8[AN1226]

Variations in the M68HC(7)05Cx Family[AN1298]

Simple Real-Time Kernels for M68HC05 Microcontrollers[AN1262]

Designing for Electromagnetic Compatibility with Single-Chip Microcontrollers[AN1263]

AN1259: System Design and Layout Techniques for Noise Reduction in MCU-Based Systems – Application Note[AN1259]

Interfacing the HC05 MCU to a Multichannel Digital-to-Analog Converter Using the MC68HC705C8A and the MC68HC705J1A[AN1256]

MC68HC05SR3 and MC68HC705SR3 Design Notes[AN-HK-22]

MC6805R3 and MC68HC05SR3 Technical Comparison[AN-HK-23]

Simple A/D for MCUs without Built-In A/D Converters[AN477]

Software Driver Routines for the MC68HC05 CAN Module[AN464]

Arithmetic Waveform Synthesis with the HC05/08 MCUs[AN1222]

68HC05K0 Infra-red Remote Control[AN463]

Driving LCDs with M6805 Microprocessors[AN442]

M6805 16-Bit Support Macros[AN1055]

MC68HC05B4 Radio Synthesizer[ANE416]

Application Note Software (2)

Software Files for AN1222 zipped[AN1222SW]

Software files for AN1212 zipped (exe file included)[AN1212SW]