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NXP USA Inc. LPC2141FBD64,151 — Microcontrollers & Processors (MCU / MPU / DSP)

NXP LPC2141FBD64,151 ARM7 MCU, 60MHz, 32KB Flash, 64-LQFP

MPNLPC2141FBD64,151
NRND

NXP LPC2100 series ARM7TDMI-S MCU, LPC2141FBD64,151, 60MHz, 16/32-Bit core, 32KB Flash, 8KB RAM, USB/I2C/SPI/SSP/UART, 45 I/O, 6x10-bit ADC, -40°C to 85°C, 64-LQFP (10x10mm) tray.

$14.7500Ref. price · indicative, final on quote
NXP USA Inc. LPC2141FBD64,151 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LPC2141FBD64,151 specifications
ParameterValue
SeriesLPC2100
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))3V ~ 3.6V
Operating temperature-40°C ~ 85°C (TA)
Speed60MHz
PackageTray
RAM size8K x 8
Core size16/32-Bit
PeripheralsBrown-out Detect/Reset, POR, PWM, WDT
ConnectivityI²C, Microwire, SPI, SSI, SSP, UART/USART, USB
Number of i (O)45
Core processorARM7®
Case64-LQFP
Data convertersA/D 6x10b
Program memory size32KB (32K x 8)

Product details

Where it fits — application and environment

This MCU targets embedded control designs that need a USB port without an external PHY — think USB-to-serial bridges, data loggers, handheld instruments, and industrial sensor interfaces. The 60 MHz ARM7 core handles moderate protocol processing and control loops; the 32 KB Flash limits firmware to lean stacks.

Memory sizing — 32 KB Flash, 8 KB RAM

The 32 KB Flash (32K x 8) is adequate for a bootloader plus a single-application image, but leaves little room for field-update redundancy. The 8 KB SRAM (8K x 8) must host stack, USB buffers, and application variables. Designs that stream data over USB or maintain large lookup tables should verify headroom early.

Frequently asked questions

Is LPC2141FBD64,151 obsolete or being discontinued?

NXP has classified the LPC2141FBD64,151 as Not Recommended for New Design (NRND), meaning it is still available for existing production but is being phased out. No official discontinuation date is recorded, but new designs should avoid it.

What is the replacement or alternative for LPC2141FBD64,151?

No official successor order code is listed in the lifecycle record. The LPC2142 (with 64 KB Flash) is a pin-compatible step-up within the same family if more memory is needed. For a long-term path, consider NXP's LPC11xx or LPC17xx Cortex-M series.

Can LPC2141FBD64,151 be used with a 3.3V supply?

Yes, the supply range is 3 V to 3.6 V, so 3.3 V is within spec. The I/O pins are 5 V-tolerant, allowing direct connection to 5 V logic without level shifters.

What is the difference between LPC2141 and LPC2142?

The LPC2142 doubles the Flash to 64 KB and the SRAM to 16 KB, while keeping the same 60 MHz ARM7 core, package, and peripheral set. The LPC2141 has 32 KB Flash and 8 KB SRAM.