CH341A PROGRAMMER USB TO UART IIC SPI I2C CONVERTOR PARALLEL PORT CONVERTER

CH341A USB conversion module equipped with CH341A chip, CH341A is a USB bus adapter chip, through the USB bus to provide asynchronous serial port, parallel port, print and 2 line and 4 line common synchronous serial interface, the module can be used for serial expansion, I2C interface EEPROM，SPI interface FLASH and STC MCU programming, program debugging, data acquisition, brush machine etc.

• • Support Parallel Port:support usb to printer and EPP or MEM parallel port
  • Support Serial Port:support Usb to UART I2C SPI Interface
  • Output Voltage : output voltage and siganal level can choose 3.3v or 5v
  • Other : onboard UART SPI I2C operating indicator lamp
  • Support USB to parallel printer port and EPP or MEM parallel port.
  • Support USB to UART, I2C, SPI interface.
  • The output voltage and the signal level can be selected by 3.3V or 5V.
  • Have UART and SPI/I2C working status indicator light.

Output voltage of VCC and signal level selection (2 jumper cap on the left of USB):

• • When the 2 jumper cap is inserted into the 3V3 side is 3.3V; when the 2 jumper cap also plug to the other side is 5V.

Interface Description:

• • VCC, RXD, TXD, GND: UART interface.
  • VCC, SDA, SCL, GND: I2C interface.
  • MISO, MOSI, SCK, CS2, CS1, CS0, GND, VCC: SPI interface.
  • The 10P 2.54mm Pin is print port and EPP/MEM port, pin’s definition please refer to manual.

Work mode (Jumper cap on the right of USB):

• • UART mode: jumper cap is inserted into the UART, the D2 indicator light (blue) on.
  • I2C/SPI and EPP/MEM parallel mode: jumper cap is inserted into the I2C/SPI, the D1 indicator light (red) on.
  • The printer parallel port mode: need to unplug the jumpers，and SDA and SCL connected together.

Package Includes:

• • 1 x CH341A Programmer USB to UART IIC SPI I2C Convertor Parallel Port Converter Onboard Operating Indicator Lamp Board Module