Design Files
Receive the full breakdown. See the product footprint and more in the eCad file.
Microcontroller
The NXP® MC68HC705P6A is an EPROM version of the MC68HC05P6 microcontroller. It is a low-cost combination of an M68HC05 Family microprocessor with a 4-channel, 8-bit analog-to-digital (A/D) converter, a 16-bit timer with output compare and input capture, a serial communications port (SIOP), and a computer operating properly (COP) watchdog timer. The HC05 CPU core contains 176 bytes of RAM, 4672 bytes of user EPROM, 239 bytes of bootloader ROM, and 21 input/output (I/O) pins (20 bidirectional, 1 input-only). This device is available in a 28-pin SOIC, PDIP, or windowed DIP package.
Product Details
Block Diagram
Features
- 28-Pin SOIC, PDIP, or Windowed DIP Package
- 4672 Bytes of User EPROM (Including 48 Bytes of Page Zero EPROM and 16 Bytes of User Vectors)
- 239 Bytes of Bootloader ROM
- 176 Bytes of On-Chip RAM
- 4-Channel 8-Bit A/D Converter
- SIOP Serial Communications Port
- 16-Bit Timer with Output Compare and Input Capture
- 20 Bidirectional I/O Lines and 1 Input-Only line
- PC0 and PC1 High-Current Outputs
Part numbers include: MC705P6ACDWE, MC705P6AMDWE, MC705P6ECDWE.
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Documentation
Quick reference to our documentation types.
1-5 of 54 documents
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Reference Manual
M68HC05 Applications Guide
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Reference Manual
HC05 Family - Understanding Small Microcontrollers
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Application Note
AN1516 Liquid Level Control Using a Pressure Sensor
Design Resources
Hardware
Quick reference to our
board types.
4 hardware offerings
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Emulators, Probes, and ProgrammersUniversal Multilink Development Interface
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Emulators, Probes, and ProgrammersPEmicro Cyclone FX programmer
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Emulators, Probes, and ProgrammersUniversal Multilink FX High-Speed Development Interface
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Emulators, Probes, and ProgrammersPEmicro Cyclone programmer
Software
Quick reference to our software types.
5 software files
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Code Snippets
Example routines
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Code Snippets
HC05 Software Example: Home Thermostat example using the 705C8 with indoor/outdoor temperature and time of day
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Code Snippets
DOS based freeware assembler
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Additional software available. View our featured partner solutions.
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Debugging and Visualization Tools
FreeMASTER Run-Time Debugging Tool
Note: For better experience, software downloads are recommended on desktop.
![[Archive]:Windows upgrades for P&E's simulator software for 68HC05](/docs/connect/images/logos/PEmicroLogo.svg?imwidth=300)
Engineering Services
To get further assistance directly from NXP, please see our Engineering Services.
4 engineering services
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Independent Design House (IDH)
Hardware Design Services
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Independent Design House (IDH)
Hardware/Software Engineering Services
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Independent Design House (IDH)
Hardware/Software development and testing
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Independent Design House (IDH)
Embedded Software Design
To find additional partner offerings that support this product, visit our Partner Marketplace.