EX-F34x-Q48 Standard, C8051F Development Board - Ws


A development board for the C8051F34x series microcontrollers, such as C8051F340. It is designed to give designers a quick start to develop code on these devices.

This development board comes with the C8051F340 chip in TQFP48 package.


If you have any questions on this product please feel free to contact us.

*Disclaimer: The images are merely illustrative.

What's On Board

  • Power
    • Powered from mini USB port or 5V DC jack, configured via on board switch
    • Power input/output pin headers
      • spare power input
      • convenient for providing power supply to other board/device if necessary
  • Onboard Chips
    • C8051F340 (TQFP48), the C8051F Microcontroller
    • AMS1117-3.3, on board regulator
  • Interfaces
    • JTAG/C2 interface for programming/debuging
    • mini USB interface
    • BUS-A & BUS-B, for connecting to the expansion board DVK501, ease to study/develop various peripheral devices
  • Human to Machine Interface
    • Reset button, used to reset the system
    • Power indicator LED
  • Other Features
    • External crystal configurable
      • there is a jumper for selecting on board 12M crystal or custom crystal mounted via the socket
      • a jumper for configuring MCU pins as oscillator inputs or regular I/O pins
    • All the MCU I/O pins are accessible on expansion connectors for further expansion
    • All the pins are clearly marked on the PCB. These marks provide the basic information on the pins

EX-F34x-Q48 introduction

  1. Power input switch
    • USB or 5V DC
  2. Power indicator
  3. 10-pin JTAG/C2 port
    • standard C2 interface
  4. Reset
  5. Pin headers connected to MCU pins
    • marked clearly on the PCB
    • easy for testing and further expansion
  6. Power Input/Output
    • 5V/3.3V
    • power input (spare)
    • power output
  7. Peripherals expansion ports
    • for connecting to DVK501
    • header pinout definition is provided
    • easy to develop various peripherals
  8. External crystal configuration
    • on-board 12 M crystal on left side
    • custom crystal interface on right side
    • selected via jumper
  1. External crystal enable jumper
    • short the jumper to use external crystal
    • open the jumper to config the pins as regular I/O pins
  2. Microcontroller
    • C8051F340
    • TQFP48 package
  3. mini USB port
  4. On board regulator
    • AMS1117-3.3
  5. 5V DC jack
  6. REG0 enable/disable jumper
    • REG0 enabled
      • short PWR5V & REGIN
      • open 3.3VJMP
    • REG0 disabled
      • short REGIN & VDD
      • short 3.3VJMP


Examples that come with this development system will show you how to connect the C8051F microcontroller to other peripheral components or devices and how to develope your prototype device easily. The pictures below show how the EX-F34x-Q48 works with the DVK501 and the results of the examples.

Note: The LCD12864 is not included in the price, please browse our store to buy it separately if you need one. Click on the image to enlarge.

Displaying text on LCD

Serial/parallel communication example using 74HC164/74HC165

Writing and Reading data from AT24CXX EEPROM via I2C interface

Development Resources

  • User Guide CD
    • CD with software, drivers and examples
  • Schematic Circuit Diagram
    • PDF
  • Examples in C
    • Based on Silabs IDE and Keil
  • Related Software
    • Silabs IDE
    • Keil
  • Datasheets of the chips



Weight: 0.156 kg

Package Contains

  1. EX-F34x-Q48
  2. USB type A to Mini-B cable
  3. USB power cable
  4. 4-pin wire x 2
  5. 2-pin wire x 2
  6. User Guide CD

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