MCF51AC256ACFUE

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MCF51AC256ACFUE

IC MCU 32BIT 256KB FLASH 64QFP

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規格

Supplier NXP USA Inc.
Package Tray
Series MCF51AC
ProductStatus Active
CoreProcessor Coldfire V1
CoreSize 32-Bit Single-Core
Speed 50MHz
Connectivity CANbus, I²C, SCI, SPI
Peripherals LVD, PWM, WDT
NumberofI/O 54
ProgramMemorySize 256KB (256K x 8)
ProgramMemoryType FLASH
RAMSize 32K x 8
Voltage-Supply(Vcc/Vdd) 2.7V ~ 5.5V
DataConverters A/D 20x12b
OscillatorType External
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case 64-QFP

概述

Description

MCF51AC256ACFUE is an 8051-based microcontroller from Freescale/NXP, part of the MCF51AC family. It integrates 256 KB of on-chip flash for program memory, on-chip RAM, and a broad set of peripherals (serial communications: UART/SPI/I2C; timers; PWM; analog peripherals: ADC/DAC; with optional USB/CAN depending on variant). It targets embedded control tasks requiring moderate performance, flexible I/O, low-power modes, and in-system programming support. The suffix ACFUE denotes the exact package and temperature-grade variant for this device; check the datasheet for precise packaging and electrical characteristics. Development tools commonly include CodeWarrior, IAR, and similar IDEs. Typical applications cover small-to-mid-size control systems, data acquisition, USB peripherals, and automotive/industrial controllers. For exact specs, consult the MCF51AC256ACFUE datasheet and user guide.

Features

Key features of MCF51AC256ACFUE (typical for this ColdFire-based MCU):
- Core: ColdFire V1 32-bit CPU, up to about 40 MHz operation.
- Memory: up to 256 KB Flash; on-chip RAM (several KB, varies by part).
- Peripherals: multiple serial interfaces (SCI/UART), SPI/SSI, I2C, up to several 16-bit timers, PWM, RTC, and a 12-bit ADC with multiple channels.
- On-chip options: watchdog timer, boot ROM, and debugging support (BDM/JTAG).
- Power and range: low-power modes with fast wakeup; operating voltage roughly 2.7–5.5 V; industrial temperature range.
- Misc: DMA controller (where available), memory protection features, and various clocking options.
- Package: commonly LQFP/QFN variants (pin count depends on package).
Note: exact peripheral counts and RAM size can vary by specific sub-variant; consult the datasheet for precise figures.

Package

100-pin LQFP (LQFP100) package.

Pinout

- Pin count: 100 pins (LQFP package for the MCF51AC256ACFUE variant).
- Function: Freescale/NXP ColdFire 32‑bit microcontroller with 256 KB Flash; used for embedded control, including on‑chip memory and peripherals such as GPIO, timers, ADCs, and serial interfaces (SCI/UART, SPI, I2C).

Manufacturer

Manufacturer: NXP Semiconductors (the Freescale ColdFire line owner).
What kind of company: A Dutch multinational semiconductor company that designs, manufactures, and sells integrated circuits (MCUs, processors, sensors, etc.) for automotive, industrial, consumer electronics, and networking markets.

Application

- Automotive body electronics and gateway modules
- Industrial automation and process control
- Motor drive and power electronics
- Consumer electronics and home appliances
- Medical devices and instrumentation
- Building automation and smart metering
- Embedded data acquisition and sensor/measurement systems

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