The 60 MHz clock delivers roughly 60 MIPS from its 3-stage pipeline — enough to handle a Modbus RTU master stack, a simple PID loop, and a 10-bit ADC scan without saturating the CPU.
NXP LPC2157FBD100,551 ARM7 MCU, 60MHz, 512KB Flash, 100-LQFP
MPNLPC2157FBD100,551
Obsolete
NXP LPC2157FBD100,551 ARM7 MCU, 16/32-Bit core, 60MHz, 512KB Flash, 32KB SRAM, 38 I/O, 100-LQFP (14×14mm), 3.3V, internal oscillator, -40°C to 85°C, Tray.
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Series | LPC2100 |
| Mounting | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 3V ~ 3.6V |
| Operating temperature | -40°C ~ 85°C (TA) |
| Speed | 60MHz |
| Package | Tray |
| RAM size | 32K x 8 |
| Core size | 16/32-Bit |
| Peripherals | Brown-out Detect/Reset, LCD, POR, PWM, WDT |
| Connectivity | I²C, Microwire, SPI, SSI, SSP, UART/USART |
| Number of i (O) | 38 |
| Core processor | ARM7® |
| Case | 100-LQFP |
| Data converters | A/D 16x10b; D/A 1x10b |
| Program memory size | 512KB (512K x 8) |
Product details
Frequently asked questions
What is the replacement for LPC2157FBD100,551?
No official successor order code is listed. The LPC2148 family shares the same ARM7 core and 100-LQFP package but has different memory sizes and adds USB; verify pin compatibility against your board before substituting.
What is the pinout of LPC2157FBD100,551?
The pinout follows the standard 100-LQFP ARM7 mapping for the LPC2100 series. The 38 I/O lines, ADC inputs, and serial interface pins are assigned per the NXP datasheet; the internal oscillator uses the XTAL1/XTAL2 pins if an external crystal is desired.
Is LPC2157FBD100,551 equivalent to LPC2148?
Both are ARM7 MCUs in 100-LQFP packages, but the LPC2148 includes USB 2.0 Full Speed and typically has different memory sizes. They are not drop-in equivalents without verifying the pinout and peripheral register map.