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MC68HC912B32CFU8 Product details

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 interface (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.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


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