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The MC68HC908QB8 is a member of the low-cost, high-performance M68HC08 Family of 8-bit microcontroller units (MCUs). All MCUs in the family use the enhanced M68HC08 central processor unit (CPU08) and are available with a variety of modules, memory sizes and types, and package types.

Features include:

? High-performance M68HC08 CPU core

? Fully upward-compatible object code with M68HC05 Family

? 5-V and 3-V operating voltages (VDD)

? 8-MHz internal bus operation at 5 V, 4-MHz at 3 V

? Trimmable internal oscillator

¨C Software selectable 1 MHz, 2 MHz, or 3.2 MHz internal bus operation

¨C 8-bit trim capability

¨C ¡À 25 untrimmed

¨C Trimmable to approximately 0.4(1)

? Software selectable crystal oscillator range, 32¨C100 kHz, 1¨C8 MHz, and 8¨C32 MHz

? Software configurable input clock from either internal or external source

? Auto wakeup from STOP capability using dedicated internal 32-kHz RC or bus clock source

? On-chip in-application programmable FLASH memory

¨C Internal program/erase voltage generation

¨C Monitor ROM containing user callable program/erase routines

¨C FLASH security