MCF51AC128AVFUE

MCU 32Bit MCF51AC ColdFire RISC 128KB Flash 3.3V/5V 64Pin PQFP Tray

The MCF51AC256 series are members of the ColdFire® family of 32-bit variable-length reduced instruction set RISC microcontroller. This document provides an overview of the MCF51AC256 series, focusing on its highly

integrated and diverse feature set.

The MCF51AC256 series are based on the V1 ColdFire core and operates at processor core speeds up to 50.33 MHz. As part of ’s Controller Continuum®, it is an ideal upgrade for designs based on the MC9S08AC128 series of 8-bit microcontrollers.

The MCF51AC256 features the following functional units:

• V1 ColdFire core with background debug module

• Up to 256 KB of flash memory

• Up to 32 KB of static RAM SRAM

• Up to two analog comparators ACMP

• Analog-to-digital converter ADC with up to 24 channels

• Controller-area network CAN

• Cyclic redundancy check CRC

• Inter-integrated circuit IIC

• Keyboard interrupt KBI

• Multipurpose clock generator MCG

• Rapid general-purpose input/output RGPIO

• Two serial communications interfaces SCI

• Up to two serial peripheral interfaces SPI

• Two flexible timer modules FTM

• Timer pulse-width modulator TPM