The MC68HC912D60C microcontroller unit (MCU) is a 16-bit device available in two package options, 80-pin QFP and 112-pin TQFP. Onchip peripherals include a 16-bit central processing unit (CPU12), 60K bytes of flash EEPROM, 2K bytes of RAM, 1K bytes of EEPROM, two asynchronous serial communication interfaces (SCI), a serial peripheral interface (SPI), an enhanced capture timer (ECT), two (one on 80QFP) 8-channel,10-bit analog-to-digital converters (ATD), a four-channel pulse-width modulator (PWM), and a CAN 2.0 A, B software compatible module (MSCAN12). System resource mapping, clock generation, interrupt control and bus interfacing are managed by the lite integration module (LIM). The MC68HC912D60C has full 16-bit data paths throughout, however, the external bus can operate in an 8-bit narrow mode so single 8-bit wide memory can be interfaced for lower cost systems. The inclusion of a PLL circuit allows power consumption and performance to be adjusted to suit operational requirements. In addition to the I/O ports available in each module, 16 (2 on 80QFP) I/O port pins are available with Key-Wake-Up capability from STOP or WAIT mode.
Features
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16-bit CPU12
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Upward compatible with M68HC11 instruction set
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Interrupt stacking and programmer’s model identical to M68HC11
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20-bit ALU
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Instruction queue
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Enhanced indexed addressing
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Multiplexed bus
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Single chip or expanded
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16 address/16 data wide or 16 address/8 data narrow mode
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Two 8-bit ports with key wake-up interrupt (2 pins only are available on 80QFP) and one I2C start bit detector (112TQFP only)
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Memory
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60K byte flash EEPROM, made of a 28K module and a 32K module with 8K bytes protected BOOT section in each module (MC68HC912D60A)
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1K byte EEPROM
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2K byte RAM