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NXP LPC1768 LPCXpresso Board

LPC1768 LPCXpresso Board

The LPC1768 LPCXpresso board with NXP's ARM Cortex-M3 microcontroller has been designed to make it as easy as possible to get started with Cortex-M3. The LPCXpresso comprises a target board combined with a JTAG debugger. A free Eclipse-based IDE from Code Red is also included. The LPC1768 has 64 kB SRAM, 512 kB Flash, 4xUART, 3xI2C, SPI, 2xSSP, 2xCAN, PWM, USB 2.0 Device/Host/OTG, RTC, Ethernet, I2S, etc.

The LPC1768 LPCXpresso board with NXP's ARM Cortex-M3 microcontroller is part of NXP's low-cost development toolchain for LPC families. It has been jointly developed by Embedded Artists, Code Red, and NXP. It is an end-to-end solution for creating applications all the way from evaluation through to production. Here are some of the highlights:

  • The target board comes with an integrated JTAG Debugger. No need for a separate emulator!.
  • A free Eclipse-based IDE is included.
  • Easy upgrade options to full-blown suites (from Code Red) and hardware kits (from Embedded Artists).



NXP's Cortex-M3 LPC1768 microcontroller in LQFP100 package.


512 kB.

Data Memory

64 kB.


Crystals 12.000 MHz crystal for CPU.


35 x 140 mm.

  • 3.15V-3.3V external powering.
  • USB via JTAG probe (LPC-LINK).

All LPC1768 pins available on expansion connector (2x27 pin rows, 100 mil pitch, 900 mil between rows).

  • Embedded JTAG (LPC-LINK) functionality via LPCXpresso toolchain.
  • LPC-LINK can be connected to external target processor after modifications to the LPCXpresso board.
  • LED on PIO0_22.

Processor Overview

LPC176x DescriptionThe LPC17xx series of low-power, cost-effective Cortex-M3 microcontrollers feature advanced peripherals such as Ethernet, USB 2.0 Host/OTG/Device, and CAN 2.0B. Operating at speeds up to 120MHz, they have up to 512KB of flash memory, up to 64KB of SRAM, 12-bit A/D and 10-bit D/A converters as well as an internal RC oscillator.




Key Features

  • 100MHz Operation (120MHz on LPC1769).
  • Nested Vectored Interrupt Controller for Fast Deterministic Interrupts.
  • Wakeup Interrupt Controller Allows Automatic Wake from Any Priority Interrupt.
  • Memory Protection Unit.
  • Four Reduced Power Modes: Sleep, Deep-Sleep, Power-Down, and Deep Power-Down.

Block Diagram

LPC17xx Block diagram

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