The MC9S08QA4 series are members of the cost-effective, high-performance S08 family of 8-bit microcontroller units featuring 1.8 to 3.3-volt operation, on-chip memory, two very low-power stop modes and low-voltage detection with reset or interrupt. The S08 core delivers a 40 MHz core speed and 20 MHz bus speed.
Up to 4 KB flash
Up to 256 KB RAM
COP/watchdog timer
Internal clock generator (ICG)
Background debug mode (BDM)
Peripherals
[1]Keyboard interrupt (KBI)
[2]Timer/PWM (TPM)
[3]Timer interrupter module (MTIM)
[4]Analog-to-digital converter (ADC), 4-channel
[5]Analog voltage comparator (ACMP)