Skip to main content
NXP USA Inc. LPC4357FET256,551 — Microcontrollers & Processors (MCU / MPU / DSP)

NXP LPC4357FET256,551 ARM Cortex-M4/M0 MCU, 204 MHz, 1 MB Flash

MPNLPC4357FET256,551
Active

NXP LPC43xx series, LPC4357FET256,551, 32-bit Dual-Core ARM Cortex-M4/M0, 204 MHz, 1 MB Flash, 136K x 8 RAM, 16K x 8 EEPROM, 164 I/O, 256-LBGA (17x17 mm), -40 to 85 °C.

$22.5100Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LPC4357FET256,551 specifications
ParameterValue
SeriesLPC43xx
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))2.2V ~ 3.6V
Operating temperature-40°C ~ 85°C (TA)
Speed204MHz
PackageTray
RAM size136K x 8
Core size32-Bit Dual-Core
EEPROM size16K x 8
PeripheralsBrown-out Detect/Reset, DMA, I²S, LCD, Motor Control PWM, POR, PWM, WDT
ConnectivityCANbus, EBI/EMI, Ethernet, I²C, IrDA, Microwire, QEI, SD, SPI, SSI, SSP, UART/USART, USB, USB OTG
Number of i (O)164
Core processorARM® Cortex®-M4/M0
Case256-LBGA
Data convertersA/D 8x10b; D/A 1x10b
Program memory size1MB (1M x 8)

Product details

Dual-core architecture for partitioned control

On-chip memory includes 1 MB of Flash and 136 KB of SRAM, plus 16 KB of EEPROM for calibration constants or boot parameters that survive a firmware update. The Flash footprint accommodates a full TCP/IP stack, a USB host stack, and a small GUI frame buffer without external memory.

Connectivity and peripheral set for industrial nodes

Data conversion is handled by an 8-channel 10-bit ADC and a single 10-bit DAC — adequate for current-sense feedback and analog set-point generation, though higher-resolution external ADCs are needed for precision instrumentation.

Housed in a 256-ball LBGA measuring 17x17 mm, the part demands a controlled PCB stack-up with via-in-pad or microvia fanout for the fine-pitch balls. X-ray inspection is recommended after reflow; hand-soldering is not practical. The industrial temperature range (-40 to 85 °C) covers most factory-floor and outdoor telecom enclosures without active cooling. Supply voltage spans 2.2 V to 3.6 V.

Frequently asked questions

What is the speed of LPC4357FET256,551?

The LPC4357FET256,551 operates at 204 MHz, driven by the ARM Cortex-M4 core. The Cortex-M0 companion core runs at the same clock, sharing the internal bus and peripherals.