Datasheet MCF51AC256ACFUE - Freescale 32- bit Microcontrollers (MCU) 256K FLASH, 32K RAM CAN — 数据表

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Manufacturer: Freescale

Description: 32- bit Microcontrollers (MCU) 256K FLASH, 32K RAM CAN

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Freescale Semiconductor Data Sheet: Technical Data
Document Number: MCF51AC256 Rev.4, 9/2009
MCF51AC256 Series ColdFire Microcontroller
Covers:MCF51AC256A MCF51AC256B MCF51AC128A MCF51AC128C
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 Freescale'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) · Cyc

Specifications:

• A/D Channels Available: 20
• Clock Frequency Max: 50.33 MHz
• Core: ColdFire V1
• Data Bus Width: 32 bit
• Height: 2.4 mm
• Interface: SCI, SPI
• Length: 14 mm
• Mounting Style: SMD/SMT
• Number of I/O Lines: 54
• Number of Timers: 8
• Number of bits in ADC: 12 bit
• On-Chip ADC: Yes
• Operating Temperature Range: - 40 C to + 85 C
• Package / Case: PQFP-64
• Packaging Type: Tray
• Processor Series: MCF51AC
• Program Memory Size: 256 Kb
• Program Memory Type: Flash
• RAM Size: 32 Kb
• Supply Voltage Range: 2.7 V to 5.5 V
• Width: 14 mm
• RoHS: Yes