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Reference Design of Digilent Pmod RS232

This is a reference design of Digilent Pmod RS232 (134-6444) . The Digilent Pmod RS232 was converted into DesignSpark PCB format. Download link to the project files and the article of Digilent Pmod RS232 can be found at the end.

The Digilent Pmod RS232 (Revision B) converts between digital logic voltage levels to RS232 voltage levels. The RS232 module is configured as a data communications equipment (DCE) device. It connects to data terminal equipment (DTE) devices, such as the serial port on a PC, using a straight-through cable.

  • Standard RS232 DB9 connector
  • Optional RTS and CTS handshaking functions


Schematic of Digilent Pmod RS232



PCB layout of Digilent Pmod RS232



3D view of Digilent Pmod RS232

BOM list of the board (Key Components):

RS Part Number

Manufacturer Part Number





Texas Instruments

Dual Line Transceiver



RS Pro

2 Pin Header


DB9 Female Right Angle Connector


DB9 connector

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