16-Bit Automotive Microcontroller

68HC912BC32
  • Not Recommended for New Designs
  • This page contains information on a product that is not recommended for new designs.
The MC68HC912BC32 microcontroller unit (MCU) is a 16-bit device composed of standard on-chip peripherals including a 16-bit central processing unit (CPU12), 32-Kbyte flash EEPROM, 1-Kbyte RAM, 768-byte EEPROM, an asynchronous serial communications interface (SCI), a serial peripheral interface (SPI), an 8-channel timer and 16-bit pulse accumulator, a 10-bit analog-to-digital converter (ADC), a four-channel pulse-width modulator (PWM), and a CAN 2.0B compatible controller (MSCAN12). System resource mapping, clock generation, interrupt control and bus interfacing are managed by the Lite integration module (LIM). The MC68HC912BC32 has full 16-bit data paths throughout, however, the multiplexed external bus can operate in an 8-bit narrow mode so single 8-bit wide memory can be interfaced for lower cost systems.

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Block Diagram

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Features

  • 16-Bit CPU12
    • Upward Compatible with M68HC11 Instruction Set
    • Interrupt Stacking and Programmer's Model Identical to M68HC11
    • 20-Bit ALU
    • Instruction Queue
    • Enhanced Indexed Addressing
    • Fuzzy Logic Instructions
  • Multiplexed Bus
    • Single Chip or Expanded
    • 16/16 Wide or 16/8 Narrow Modes
  • Memory
    • 32-Kbyte Flash EEPROM with 2-Kbyte Erase-Protected Boot Block
    • 768-B yte EEPROM
    • 1-Kbyte RAM with Single-Cycle Access for Aligned or Misaligned Read/Write
  • 8-Channel, 10-Bit Analog-to-Digital Converter
  • 8-Channel Timer

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