MCF52254AF80                Description

The MCF52254AF80 family of microcontrollers (MCF52252, MCF52254, MCF52255, MCF52256, MCF52258 and MCF52259 devices) is a member of the family of Coldfire reduced instruction set Computing (RISC) microprocessors. This document provides an overview of the 32-bit MCF52259 microcontroller, focusing on its highly integrated and diverse feature set. Based on the second version of the Coldfire kernel, this 32-bit device runs at a frequency of up to 80 MHz and provides high performance and low power consumption. On-chip memories tightly connected to the processor core include up to 512 KB of flash memory and 64 KB of static random access memory (SRAM).

MCF52254AF80        Features

? V2 ColdFire core delivering 76 MIPS (Dhrystone 2.1) at

80 MHz running from internal flash memory with

Enhanced Multiply Accumulate (MAC) Unit and hardware

divider

? Cryptography Acceleration Unit (CAU).

? Fast Ethernet controller (FEC)

? Mini-FlexBus external bus interface available on 144 pin

packages

? Universal Serial Bus On-The-Go (USBOTG)

? USB Transceiver

? FlexCAN controller area network (CAN) module

? Three universal asynchronous/synchronous

receiver/transmitters (UARTs)

? Two inter-integrated circuit (I2C) bus interface modules

? Queued serial peripheral interface (QSPI) module

? Eight-channel 12-bit fast analog-to-digital converter

(ADC) with simultaneous sampling

? Four-channel direct memory access (DMA) controller

? Four 32-bit input capture/output compare timers with

DMA support (DTIM)

MCF52254AF80                 Applications

low power applications