Microcontroller IC Micro Control Chip MC9S08PA4AVWJ

datasheet

Key features
• 8-Bit S08 central processor unit (CPU)
– Up to 20 MHz bus at 2.7 V to 5.5 V across operating
temperature range
– Supporting up to 40 interrupt/reset sources
– Supporting up to four-level nested interrupt
– On-chip memory
– Up to 4 KB flash read/program/erase over full
operating voltage and temperature
– Up to 128 byte EEPROM; 2-byte erase sector;
program and erase while executing flash
– Up to 512 byte random-access memory (RAM)
– Flash and RAM access protection