Prototyping Board for LPC2148

Replacement: None. There is no direct replacement for this board. This page is for reference only.

Prototyping board for the LPC2148 processor.

  • MCU: LPC2148 16/32 bit ARM7TDMI-S? with 512K Bytes Program Flash, 42K Bytes RAM, USB 2.0, RTC, 10 bit ADC 2.44 uS, 2x UARTs, 2x I2C, SPI, 2x 32bit TIMERS, 6x PWM, 8x CCR, 1x DAC, WDT, 5V tolerant I/O, up to 60MHz operation
  • Standard JTAG connector with ARM 2x10 pin layout for programming/debugging with ARM-JTAG
  • USB connector, USB link LED
  • Two channel RS232 interface
  • SD/MMC card connector
  • Two buttons
  • Trimpot connected to ADC
  • Two status LEDs
  • Buzzer
  • UEXT - 10 pin extension connector for Olimex addon peripherals like MP3, RF2.4Ghz, RFID etc. modules
  • 2x SPI connectors
  • I2C connector
  • On board voltage regulator 3.3V with up to 800mA current
  • Single power supply: 6V AC or DC required
  • Power supply LED
  • Power supply filtering capacitor
  • RESET circuit with external control of Philips ISP utility via RS232
  • RESET button
  • DBG, BSL slide switch
  • JRST jumper for enable/disable external RESET vontrol by RS232
  • 12 MHz socketed crystal
  • 32.768 kHz crystal and RTC backup battery connector
  • Extension headers for all uC ports
  • PCB: FR-4, 1.5 mm (0,062"), green soldermask, white silkscreen component print


  • 4.33x3.93" (110x100mm)


Looking for answers to technical questions?

We welcome your comments and suggestions below. However, if you are looking for solutions to technical questions please see our Technical Assistance page.

  • Hello:
    Can I use Keil ULINK2 to program/debug this board?

  • I would love to see one of these babies running a RepRap machine. The ability to store multiple build files on an SD card, download all the files over USB, then use a serial interface display to control which parts to print!

    • Hmmm, good idea. I'm thinking more of a CNC but same difference. I would generally have my CNC hooked up to my computer so usually it wouldn't matter if I used this board or not, but if there was a problem with my computer my CNC would still work with selectable builds.

  • Hi,
    this morning I received the Lpc2148. I just tried to power it via USB and the NXP chip becomes after few seconds extremely hot. I also tried to use two different power supply (6v and 5 V) and the capacitor close to the power supply and the chip become hot as well. Is it normal? Is it drawing too much current?

    • Hey Francesco,
      I'm really sorry to hear about that. It's rarely normal for these chips to get extremely hot, especially straight out of the box. Drop us an email with as much info as possible. We can help you troubleshoot or get you set up to send it back for testing and replacement.
      -techsupport at sparkfun dot com

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