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NXP USA Inc. LPC1548JBD100551 — Microcontrollers & Processors (MCU / MPU / DSP)

NXP LPC1548JBD100551 ARM Cortex-M3 MCU, 72 MHz

MPNLPC1548JBD100551
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NXP LPC15xx series 32-bit ARM Cortex-M3 MCU, LPC1548JBD100551, 72 MHz, 128 KB Flash, 20 KB RAM, 4 KB EEPROM, 76 I/O, CANbus, USB, I²C, SPI, UART/USART, 2.4 V–3.6 V supply, -40°C to 105°C, 100-LQFP.

NXP USA Inc. LPC1548JBD100551 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LPC1548JBD100551 specifications
ParameterValue
SeriesLPC15xx
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))2.4V ~ 3.6V
Operating temperature-40°C~105°C(TA)
Speed72MHz
PackageBulk
RAM size20K x 8
Core size32-Bit Single-Core
EEPROM size4K x 8
PeripheralsBrown-out Detect/Reset, DMA, POR, PWM, WDT
ConnectivityCANbus, I²C, SPI, UART/USART, USB
Number of i (O)76
Core processorARM® Cortex®-M3
Case100-LQFP
Data convertersA/D 24x12b
Program memory size128KB (128K x 8)

Product details

The NXP LPC1548JBD100551 is a 32-bit ARM Cortex-M3 MCU clocked at 72 MHz, with 128 KB Flash, 20 KB RAM, and 4 KB EEPROM on-chip. That EEPROM block saves an external serial memory part for calibration constants or boot parameters — one fewer line item on the BOM.

Memory sizing — 128 KB Flash, 20 KB RAM, 4 KB EEPROM

The 128 KB Flash and 20 KB RAM support a CANopen node with USB descriptors. The 4 KB EEPROM stores calibration data without Flash wear.

Connectivity and peripherals — CAN, USB, and the usual suspects

The peripheral set includes CANbus, USB, I²C, SPI, and UART/USART — enough to talk to a VFD over CANopen, log data over USB, and poll a temperature sensor over I²C without external transceivers (except for the CAN PHY and USB PHY, which are off-chip). The 24-channel 12-bit ADC samples analog feedback from current shunts or potentiometers.

Frequently asked questions

What is LPC1548JBD100551's listed speed?

The core runs at 72 MHz, which is the maximum clock for this Cortex-M3 device.

What compliance documentation does NXP provide for LPC1548JBD100551?

NXP provides a datasheet, errata sheet, and application notes for this MCU. RoHS compliance is standard for the LPC15xx series; specific certificates are available on request.