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

Select a section:

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

Design Resources

Select a section:

Documentation

Quick reference to our documentation types.

Filters

1-5 of 28 documents

Show All

Software

Filters

1 software file

Note: For better experience, software downloads are recommended on desktop.

Support

What do you need help with?

  • Narrow your search
Search