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Part Number: MC68B912B32
Description: The MC68HC912B32 microcontroller unit (MCU) is a 16-bit device composed of standard on-chip pe-ripherals including a 16...
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MC68B912B32
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DataSheet
General Description
MC68B912B32 General Description
The MC68HC912B32 microcontroller unit (MCU) is a 16-bit device composed of standard on-chip pe-ripherals 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, an 8-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.
MC68B912B32 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, 8-Bit Analog-to-Digital Converter
• 8-Channel Timer
- Each Channel Fully Configurable as Either Input Capture or Output Compare
- Simple PWM Mode
- Modulo Reset of Timer Counter
• 16-Bit Pulse Accumulator
- External Event Counting
- Gated Time Accumulation
• Pulse-Width Modulator
- 8-Bit, 4-Channel or 16-Bit, 2-Channel
- Separate Control for Each Pulse Width and Duty Cycle
- Programmable Center-Aligned or Left-Aligned Outputs
• Serial Interfaces
- Asynchronous Serial Communications Interface (SCI)
- Synchronous Serial Peripheral Interface (SPI)
- J1850 Byte Data Link Communication (BDLC)
• COP Watchdog Timer, Clock Monitor, and Periodic Interrupt Timer
• 80-Pin QFP Package
- Up to 63 General-Purpose I/O Lines
- 2.7V5.5V Operation at 8 MHz
• Single-Wire Background Debug™ Mode (BDM)
• On-Chip Hardware Breakpoints
- 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, 8-Bit Analog-to-Digital Converter
• 8-Channel Timer
- Each Channel Fully Configurable as Either Input Capture or Output Compare
- Simple PWM Mode
- Modulo Reset of Timer Counter
• 16-Bit Pulse Accumulator
- External Event Counting
- Gated Time Accumulation
• Pulse-Width Modulator
- 8-Bit, 4-Channel or 16-Bit, 2-Channel
- Separate Control for Each Pulse Width and Duty Cycle
- Programmable Center-Aligned or Left-Aligned Outputs
• Serial Interfaces
- Asynchronous Serial Communications Interface (SCI)
- Synchronous Serial Peripheral Interface (SPI)
- J1850 Byte Data Link Communication (BDLC)
• COP Watchdog Timer, Clock Monitor, and Periodic Interrupt Timer
• 80-Pin QFP Package
- Up to 63 General-Purpose I/O Lines
- 2.7V5.5V Operation at 8 MHz
• Single-Wire Background Debug™ Mode (BDM)
• On-Chip Hardware Breakpoints
MC68B912B32 Connection Diagram
MC68B912B32
PDF/DataSheet Download
- Datasheet: MC68B912B32
- File Size: 766223 KB
- Manufacturer: MOTOROLA [Motorola, Inc]
- Click here to Download
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