Open4357-C Package A, LPC Development Board
Open4357-C Package A, LPC Development Board

Description of product


Open4357-C is an LPC development board designed for the LPC4357FET256 / LPC4357JET256 microcontroller, consists of the mother board and the MCU core board Core4357.

The Open4357-C supports further expansion with various optional accessory boards for specific application. The modular and open design makes it the ideal for starting application development with NXP LPC series microcontrollers.


Mother Board

LPC4357FET256 / LPC4357JET256 development board on board resource

  1. MCU core board connector: for easily connecting the MCU core board
  2. SGPIO connector: for connecting camera module
  3. USB interface 1: USB1 FS
  4. USB interface 2: USB0 HS
  5. USB interface 3: converts to UART through an onboard USB to UART convertor PL2303
  6. UART3 interface: easily connects to RS232, RS485, USB TO 232, etc.
  7. I2C0 | I2C1 interface: easily connects to I2C peripherals such as I/O expander (PCF8574), EEPROM (AT24Cxx), etc.
  8. CAN1 interface: for connecting CAN module
  9. CAN0 interface: for connecting CAN module
  10. UART1 interface: easily connects to RS232, RS485, USB TO 232, etc.
  11. ADC+DAC interface: for ADC/DAC testing
  12. LCD interface 1: for connecting 7inch LCD
  13. SDIO interface: for connecting Micro SD module, features much faster access speed rather than SPI
  14. LCD interface 2: for connecting 4.3inch LCD
  15. Capacitive touch screen interface: for connecting capacitive touch screen
  16. SSP interface: easily connects to SPI peripherals such as DataFlash (AT45DBxx), SD card, MP3 module, etc.
  17. ETH interface: for connecting ETH module
  18. I2S0 interface: for connecting I2S modules such as Audio module, etc.
  19. ONE-WIRE interface: easily connects to ONE-WIRE devices (TO-92 package), such as temperature sensor (DS18B20), electronic registration number (DS2401), etc.
  20. 5V DC jack
  21. 5V/3.3 V power input/output: usually used as power output, also common-grounding with other user board
  22. MCU pins connector: all the I/O ports are accessible on expansion connectors for further expansion
  23. JTAG interface: for debugging/programming
  24. AMS1117-3.3: 3.3V voltage regulator
  25. LM3625-H: USB power management device
  26. XPT2046 (on bottom side): touch screen controller
  27. PL2303TA (on bottom side): USB TO UART convertor
  28. Power indicator
  31. PL2303TA TX-LED / RX-LED, UART transmitting/receiving indicator
  32. LEDs: convenient for indicating I/O status and/or program running state
  33. Joystick: five positions
  34. User key: convenient for I/O input and/or interact with running code
  35. Reset button
  36. Power switch
  37. BOOT jumper
  38. VBAT jumper
  39. USB1 FS jumper
  40. USB0 HS jumper
  41. USB TO UART jumper
  42. LEDs jumper
  43. User key jumper
  44. Joystick jumper

Core 4357

Core4357 on board resource

  1. LPC4357FET256 / LPC4357JET256:the LPC ARM Cortex-M4/M0 dual-core microcontroller:
    • Core: Cortex-M4 processor, 204MHz Max
    • Core: Cortex-M0 coprocessor, 204MHz Max
    • Package: LBGA256
    • I/Os: 164
    • Memories: FLASH total 1M, SRAM total 136kB, ROM 64kB, E2PROM 16kB, OTP memory 64 bit
    • Interfaces:
      • 1 x SPIFI, 1 x 10/100T MAC
      • 1 x High-speed USB2.0 Host/Device/OTG
      • 1 x High-speed USB 2.0 Host/Device
      • 1 x 550 UART, 3 x 550 USART, 1 x IrDA
      • 2 x CAN 2.0, 2 x SSP, 1 x SPI, 1 x Fast-mode Plus I2C
      • 1 x standard I2C-bus, 2 x I2S, 1 x EMC, 1 x LCD controller
      • 1 x SD/MMC, 1 x PWM, 1 x QEI, 1 x 10-bit DAC, 2 x 10-bit ADC
  2. QSPI FLASH solder pads, for soldering external Flash if required
  3. MT48LC8M32B2, 256M Bit SDRAM
  4. SST39VF3201, 32M Bit NorFlash
  5. K9F1G08U0B, 1G Bit NandFlash
  6. 12M crystal oscillator
  7. 32.768K crystal, for internal RTC with calibration
  8. MCU pins expander, VCC, GND and idle I/O ports are accessible on expansion connectors for further expansion