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NXP USA Inc. LPC4078FET208551 — Microcontrollers & Processors (MCU / MPU / DSP)

NXP LPC4078FET208551 ARM Cortex-M4 MCU, 120MHz

MPNLPC4078FET208551
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NXP LPC40xx series, ARM Cortex-M4 single-core 32-bit MCU, LPC4078FET208551, 120MHz, 512KB Flash, 96KB RAM, 165 I/O, Ethernet, USB OTG, CANbus, 8×12-bit ADC, 2.4V–3.6V, -40°C to 85°C, 208-TFBGA.

NXP USA Inc. LPC4078FET208551 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LPC4078FET208551 specifications
ParameterValue
SeriesLPC40xx
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))2.4V ~ 3.6V
Operating temperature-40°C~85°C(TA)
Speed120MHz
PackageBulk
RAM size96K x 8
Core size32-Bit Single-Core
EEPROM size4032 x 8
PeripheralsBrown-out Detect/Reset, DMA, I²S, POR, PWM, WDT
ConnectivityCANbus, EBI/EMI, Ethernet, I²C, IrDA, Microwire, QEI, SD, SPI, SSI, SSP, UART/USART, USB, USB OTG
Number of i (O)165
Core processorARM® Cortex®-M4
Case208-TFBGA
Data convertersA/D 8x12b; D/A 1x10b
Program memory size512KB (512K x 8)

Product details

The NXP LPC4078FET208551 is a 32-bit ARM Cortex-M4 single-core microcontroller running at 120 MHz, with 512 KB of Flash and 96 KB of RAM. It includes Ethernet, USB OTG, CANbus, and an 8-channel 12-bit ADC.

120 MHz clock – what it means for protocol stack headroom

At 120 MHz, the Cortex-M4 runs an Ethernet TCP/IP stack alongside a CANopen or Modbus RTU stack. The 96 KB RAM must cover packet buffers, USB descriptors, RTOS kernel, and data arrays.

208-TFBGA – board design considerations

The 208-ball TFBGA (15x15 mm) requires a PCB capable of routing 165 signals plus power and ground. A four-layer board with buried vias is the practical minimum.

Frequently asked questions

What is the datasheet for LPC4078FET208551?

The datasheet is published by NXP under the base product number LPC4078. It covers the full LPC40xx family including the 120 MHz Cortex-M4 core, memory map, peripheral registers, electrical characteristics, and package drawing for the 208-TFBGA.

What is LPC4078FET208551's listed speed?

The core runs at 120 MHz, which is the maximum clock for the LPC4078 variant in the LPC40xx series.

What is the closest pin-compatible alternative to LPC4078FET208551?

Within the LPC40xx family, the LPC4088FET208 offers a higher Flash density (512 KB vs 512 KB – same) but adds a floating-point unit (FPU) and a different feature set. Pin compatibility should be verified against the NXP datasheet for the specific package variant.