•  3 x user LEDs 
•  Target Reset, ISP (3) and user buttons 
•  Expansion options based on popular standards: 
  Arduino UNO compatible expansion site with additional LPCXpresso V3 standard 
connections 
  PMod™ compatible expansion port 
  Host connection / general purpose expansion port 
•  On-board 3.3V regulator with external power supply options. 
•  Built-in power consumption measurement for target LPC546x8/540xx/54S0xx MCU. 
•  Winbond 128Mb W25Q128JVFIM Quad-SPI flash (Micron devices used on all 
revisions up to Rev C and some Rev D.) 
•  Winbond 128Mb W9812G6JB-6I SDRAM (Micron MT48LC8M16A2B4 used on all 
revisions up to Rev C and some Rev D.). 
•  Knowles SPH0641LM4H digital microphone. 
•  Full size SD/MMC card slot. 
•  NXP MMA8652FCR1 accelerometer. 
•  Stereo audio codec with line in/out. 
•  High and full speed USB ports with micro A/B connector for host or device 
functionality. 
•  10/100Mbps Ethernet (RJ45 connector). 
•  Rocktech RK043FN02H 272x480 color LCD with capacitive touch screen. Available 
separately for LPCXpresso54S018 boards. 
2.1  Board layout and settings 
This section provides a quick reference guide to the main board components, 
configurable items, visual indicators, and expansion connectors. Fig 2 shows the layout 
of the components on the LPCXpresso546x8/540xx/54S0xx board.