Features
Features include:
• M68HC11 CPU
• Power-saving stop and wait modes
• 512 bytes of RAM
• Multiplexed address and data buses
• Enhanced 16-bit timer with 4-stage programmable prescaler
– Three input capture (IC) channels
– Four output compare (OC) channels
– One additional channel, selectable as fourth IC or fifth OC
• 8-bit pulse accumulator
• Real-time interrupt circuit
• Computer operating properly (COP) watchdog
• Clock monitor
• Enhanced asynchronous non-return-to-zero (NRZ) SCI
• Enhanced SPI
• Eight bidirectional input/output (I/O) lines
• Three input-only lines
• Three output-only lines (one output-only line in 40-pin package)
• Packaging options:
– 44-pin plastic-leaded chip carrier (PLCC)
– 44-pin quad flat pack (QFP)
– 40-pin plastic dual in-line package (DIP)