Introduction
The MC9S12C-Family / MC9S12GC-Family are 48/52/80 pin Flash-based MCU families, which deliver the power and flexibility of the 16-bit core to a whole new range of cost and space sensitive, general purpose industrial and automotive network applications. All MC9S12C-Family / MC9S12GC-Family members feature standard on-chip peripherals including a 16-bit central processing unit (CPU12), up to 128K bytes of Flash EEPROM, up to 4K bytes of RAM, an asynchronous serial communications interface (SCI), a serial peripheral interface (SPI), an 8-channel 16-bit timer module (TIM), a 6-channel 8-bit pulse width modulator (PWM), an 8-channel, 10-bit analog-to-digital converter (ADC).

FEATUREs
• 16-bit HCS12 core:
   — HCS12 CPU
   – Upward compatible with M68HC11 instruction set
   – Interrupt stacking and programmer’s model identical to M68HC11
   – Instruction queue
   – Enhanced indexed addressing
   — MMC (memory map and interface)
   — INT (interrupt control)
   — BDM (background debug mode)
   — DBG12 (enhanced debug12 module, including breakpoints and change-of-flow trace buffer)
   — MEBI (multiplexed expansion bus interface) available only in 80-pin package version
• Wake-up interrupt inputs:
   — Up to 12 port bits available for wake up interrupt function with digital filtering
• Operating frequency:
   — 32MHz equivalent to 16MHz bus speed for single chip
   — 32MHz equivalent to 16MHz bus speed in expanded bus modes
   — Option of 9S12C Family: 50MHz equivalent to 25MHz bus speed
   — All 9S12GC Family members allow a 50MHz operating frequency.
• Internal 2.5V regulator:
   — Supports an input voltage range from 2.97V to 5.5V
   — Low power mode capability
   — Includes low voltage reset (LVR) circuitry
   — Includes low voltage interrupt (LVI) circuitry
• 48-pin LQFP, 52-pin LQFP, or 80-pin QFP package:
   — Up to 58 I/O lines with 5V input and drive capability (80-pin package)
   — Up to 2 dedicated 5V input only lines (IRQ, XIRQ)
   — 5V 8 A/D converter inputs and 5V I/O
• Development support:
   — Single-wire background debug™ mode (BDM)
   — On-chip hardware breakpoints
   — Enhanced DBG12 debug features