Skip to main content
NXP Semiconductors MCF51AC128ACFUE — Microcontrollers & Processors (MCU / MPU / DSP)

NXP MCF51AC128ACFUE Coldfire V1 MCU, 50 MHz, 128 KB Flash

MPNMCF51AC128ACFUE
End of Life

NXP MCF51AC128ACFUE, Coldfire V1 32-bit MCU, 50 MHz core, 128 KB Flash, 32 KB RAM, 20-channel 12-bit ADC, CAN/I²C/SCI/SPI, 54 GPIO, 2.7-5.5 V supply, -40°C to 85°C, 64-QFP (14x14 mm), Tray.

$15.86Ref. price · indicative, final on quote
Packaging64-QFP
RoHSROHS3 Compliant
SeriesMCF51AC
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

MCF51AC128ACFUE specifications
ParameterValue
SeriesMCF51AC
MountingSurface Mount
Oscillator typeExternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))2.7V ~ 5.5V
Operating temperature-40°C ~ 85°C (TA)
Speed50MHz
PackageTray
RAM size32K x 8
Core size32-Bit Single-Core
PeripheralsLVD, PWM, WDT
ConnectivityCANbus, I²C, SCI, SPI
Number of i (O)54
Core processorColdfire V1
Case64-QFP
Data convertersA/D 20x12b
Program memory size128KB (128K x 8)

Product details

The MCF51AC128ACFUE: It carries a 20-channel 12-bit ADC, CANbus, I²C, SCI, and SPI interfaces, and 54 GPIO lines in a 64-QFP package.

Memory sizing and peripheral headroom

The 20 analog inputs with 12-bit resolution mean you can monitor multiple current-sense resistors, thermistors, and voltage dividers without external muxing.

Frequently asked questions

What is the programming interface for MCF51AC128ACFUE?

The MCF51AC128ACFUE uses the Coldfire V1 background debug module (BDM) for programming and debugging. An external oscillator is required for the core clock.

Is MCF51AC128ACFUE RoHS compliant?

Yes, the MCF51AC128ACFUE is ROHS3 compliant.