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NXP USA Inc. LPC2131FBD64,151 — Microcontrollers & Processors (MCU / MPU / DSP)

NXP LPC2131FBD64,151 ARM7 MCU, 60MHz, 32KB Flash, 8KB RAM

MPNLPC2131FBD64,151
Obsolete

NXP LPC2100 series ARM7® microcontroller, LPC2131FBD64,151, 16/32-bit core, 60 MHz, 32 KB Flash, 8 KB RAM, 47 I/O, 3.3 V, -40 to 85 °C, 64-LQFP.

$12.1300Ref. price · indicative, final on quote
NXP USA Inc. LPC2131FBD64,151 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LPC2131FBD64,151 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
Number of i (O)47
Core processorARM7®
Case64-LQFP
Data convertersA/D 8x10b; D/A 1x10b
Program memory size32KB (32K x 8)

Product details

60 MHz core and 32 KB Flash — what they mean for your BOM

The 60 MHz ARM7 core handles control loops and protocol parsing. 32 KB of Flash is enough for a modest firmware image, such as a Modbus RTU slave or a PID loop.

Industrial temperature range and package

Rated for -40 to 85 °C, this MCU is at home in factory-floor enclosures, outdoor telecom cabinets, and engine-bay-adjacent electronics where the ambient can swing. The 64-LQFP package (10x10 mm body) is hand-solderable with a fine-tip iron and a steady hand — a weekend maker can breadboard it on a breakout board, and a production line can reflow it without special handling.

Frequently asked questions

What is the equivalent of LPC2131FBD64?

The closest pin-compatible equivalent within the LPC2100 family is the LPC2132FBD64, which offers 64 KB Flash and 16 KB RAM while keeping the same ARM7 core, 60 MHz speed, 64-LQFP package, and peripheral set. The LPC2138FBD64 (512 KB Flash) is another drop-in option for designs needing more memory.

Can I replace LPC2131FBD64 with LPC2132FBD64?

Yes, the LPC2132FBD64 is a pin-compatible replacement. It shares the same 64-LQFP footprint, ARM7 core, 60 MHz clock, and peripheral set, but doubles the Flash to 64 KB and the RAM to 16 KB. No PCB layout changes are needed.

Where can I buy LPC2131FBD64,151?

This obsolete part is sourced through independent distribution channels. Submit an RFQ for current pricing and availability — quotes are confirmed against real-time stock at the time of request.

What is the programming interface for LPC2131FBD64?

The LPC2131FBD64 supports in-system programming via its UART/USART serial interface using the standard NXP ISP protocol. It also has a JTAG port for debug and flash programming through an ARM7-compatible debug probe.

What is LPC2131FBD64,151's listed speed?

The core runs at 60 MHz, which is the maximum clock frequency for the ARM7TDMI-S processor in this device.