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
