16-Bit Automotive Microcontroller

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The MC68HC912B32 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 inter-face (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 J1850-compatible byte data link communications module (BDLC). The chip is the first 16-bit microcontroller to include both byte-erasable EEPROM and flash EEPROM on the same device. System resource mapping, clock generation, interrupt control and bus interfacing are managed by the Lite integration module (LIM). The MC68HC912B32 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.

Data Sheet

Reference Manual

Product Details

Block Diagram

Washer Machines Microcontrollers for M68HC05 Family 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

Buy/Parametrics

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Documentation

Quick reference to our documentation types.

1-10 of 39 documents

Compact List

Designing for Board Level Electromagnetic Compatibility[AN2321]

PDFOct 18, 2005Rev 1
AN1516 Liquid Level Control Using a Pressure Sensor[AN1516]

PDFMay 16, 2005Rev 4
ADC Definitions and Specifications[AN2438]

PDFFeb 21, 2003Rev 0
Opto Isolation Circuits For In Circuit Debugging of 68HC9(S)12 and 68HC908 Microcontrollers[AN2342]

PDFSep 25, 2002Rev 0
FLASH Programming Via CAN[AN1828]

PDFFeb 13, 2002Rev 1
MSCAN Low-Power Applications[AN2255]

PDFFeb 11, 2002Rev 0
Using Background Debug Mode for the M68HC12 Family[AN2104]

PDFFeb 2, 2001Rev 0
Local Interconnect Network (LIN) Demonstration[AN2103]

PDFDec 1, 2000Rev 0
Non-Volatile Memory Technology Overview[AN1837]

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

PDFJan 1, 2000Rev 0
FLASH Programming for MC68HC912 Microcontrollers[AN1836]

PDFJan 1, 2000Rev 0
Using the HC912B32 to Implement the Distributed Systems Interface Protocol[AN1816]

PDFAug 1, 1999Rev 0
Determining MCU Oscillator Start-Up Parameters[AN1783]

PDFJan 1, 1999Rev 1
Interfacing the MC68HC912B32 to an LCD Module[AN1774]

PDFJan 1, 1999Rev 1.0
Noise Reduction Techniques for Microcontroller-Based Systems[AN1705]

PDFJan 1, 1999Rev 0
Board Strategies for Ensuring Optimum Frequency Synthesizer Performance[AN1282]

PDFJan 1, 1999Rev 0
Precision Sine-Wave Tone Synthesis Using 8-Bit MCUs[AN1771]

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

PDFJan 1, 1998Rev 1
VPW J1850 Multiplexing and Byte Data Link Controller (BDLC) Module[AN1731]

PDFJan 1, 1998Rev 0
Using M68HC12 Indexed Indirect Addressing[AN1716]

PDFJan 1, 1997Rev 1
ITC127 MC68HC705MC4 Motion Control Development Board[AN1717]

PDFJan 1, 1997Rev 0
A Serial Bootloader for Reprogramming the MC68HC912B32 Flash EEPROM[AN1718]

PDFJan 1, 1997Rev 0
Using the Callable Routines in D-Bug12[AN1280A]

PDFJan 1, 1997Rev 0
Transporting M68HC11 Code to M68HC12 Devices[AN1284]

PDFJan 1, 1996Rev 0
Using and Extending D-Bug12 Routines[AN1280]

PDFJan 1, 1996Rev 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

Software files for AN1836 zipped[AN1836SW]

ZIPFeb 21, 2000Rev 0

M68HC12B Family - Data Sheet[M68HC12B]

PDFJul 1, 2005Rev 9.1

68HC912B32 8-Bit Microcontroller Unit: Mask Set Errata 4 - Errata[68HC912B32MSE4]

PDFMar 15, 2001Rev 0
MC68HC912B32 Microcontroller Unit: Mask Set Errata 3 - Errata[68HC912B32MSE3]

PDFMar 1, 2001Rev 2
HC912B32 Device Information Sheet: 09H91F Mask Sets[68HC912B32MSE1]

PDFAug 18, 1999Rev 1
HC912B32 Device Information Sheet: 04J54E Mask Sets[68HC912B32MSE2]

PDFAug 18, 1999Rev 2

MC68HC912B Family Product Numbering Scheme SG1006 Q3 2006[MC68HC912BPN]

PDFNov 16, 2005Rev 0

CPU12 - Reference Manual[CPU12RM]

PDFMar 30, 2006Rev 4
CPU12 Reference Guide[CPU12RG]

PDFNov 26, 2001Rev 2

Use of OSC2/XTAL as a Clock Output on Freescale Semiconductor Microcontrollers[EB396]

PDFJun 19, 2002Rev 0
A comparison of the MC9S12DP256 (mask set 0K36N) versus the HC12[EB376]

PDFOct 31, 2001Rev 2
Initializing a BDLC-Based SAE J1850 Node on a GM Class 2 or Chrysler PCI Network[EB601]

PDFJul 20, 2000Rev 0

Design Resources

Design Files

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Hardware

Quick reference to our board types.

1 hardware offering

Emulators, Probes, and Programmers
PEmicro Cyclone FX programmer

CYCLONE-FX

Software

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1 software file

Development IDEs and Build Tools
CodeWarrior^® Development Studio for HCS12(X) Microcontrollers (Classic IDE) v5.2

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

16-Bit Automotive Microcontroller

Product Details

Block Diagram

Washer Machines Microcontrollers for M68HC05 Family Block Diagram

Features

Buy/Parametrics

Documentation

Filter by

Application Note (27)

Designing for Board Level Electromagnetic Compatibility[AN2321]

AN1516 Liquid Level Control Using a Pressure Sensor[AN1516]

ADC Definitions and Specifications[AN2438]

Opto Isolation Circuits For In Circuit Debugging of 68HC9(S)12 and 68HC908 Microcontrollers[AN2342]

FLASH Programming Via CAN[AN1828]

MSCAN Low-Power Applications[AN2255]

Using Background Debug Mode for the M68HC12 Family[AN2104]

Local Interconnect Network (LIN) Demonstration[AN2103]

Non-Volatile Memory Technology Overview[AN1837]

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

FLASH Programming for MC68HC912 Microcontrollers[AN1836]

Using the HC912B32 to Implement the Distributed Systems Interface Protocol[AN1816]

Determining MCU Oscillator Start-Up Parameters[AN1783]

Interfacing the MC68HC912B32 to an LCD Module[AN1774]

Noise Reduction Techniques for Microcontroller-Based Systems[AN1705]

Board Strategies for Ensuring Optimum Frequency Synthesizer Performance[AN1282]

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

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

VPW J1850 Multiplexing and Byte Data Link Controller (BDLC) Module[AN1731]

Using M68HC12 Indexed Indirect Addressing[AN1716]

ITC127 MC68HC705MC4 Motion Control Development Board[AN1717]

A Serial Bootloader for Reprogramming the MC68HC912B32 Flash EEPROM[AN1718]

Using the Callable Routines in D-Bug12[AN1280A]

Transporting M68HC11 Code to M68HC12 Devices[AN1284]

Using and Extending D-Bug12 Routines[AN1280]

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]

Application Note Software (1)

Software files for AN1836 zipped[AN1836SW]

Data Sheet (1)

M68HC12B Family - Data Sheet[M68HC12B]

Errata (4)

68HC912B32 8-Bit Microcontroller Unit: Mask Set Errata 4 - Errata[68HC912B32MSE4]

MC68HC912B32 Microcontroller Unit: Mask Set Errata 3 - Errata[68HC912B32MSE3]

HC912B32 Device Information Sheet: 09H91F Mask Sets[68HC912B32MSE1]

HC912B32 Device Information Sheet: 04J54E Mask Sets[68HC912B32MSE2]

Product Numbering Scheme (1)

MC68HC912B Family Product Numbering Scheme SG1006 Q3 2006[MC68HC912BPN]

Reference Manual (2)

CPU12 - Reference Manual[CPU12RM]

CPU12 Reference Guide[CPU12RG]

Technical Notes (3)

Use of OSC2/XTAL as a Clock Output on Freescale Semiconductor Microcontrollers[EB396]

A comparison of the MC9S12DP256 (mask set 0K36N) versus the HC12[EB376]

Initializing a BDLC-Based SAE J1850 Node on a GM Class 2 or Chrysler PCI Network[EB601]

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Hardware

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