+5V Powered RS-232 Transmitters/Receivers

Typical Diagram

enlarge +typical diagram

Key Features

    • Meets All RS-232E and V.28 Specifications
    • Requires Only Single +5V Power Supply
      • (+5V and +12V - HIN239)
    • High Data Rate120kbps
    • Onboard Voltage Doubler/Inverter
    • Low Power Consumption
    • Low Power Shutdown Function
    • Three-State TTL/CMOS Receiver Outputs
    • Multiple Drivers
      • ±10V Output Swing for 5V lnput
      • 300Ω Power-Off Source Impedance
      • Output Current Limiting
      • TTL/CMOS Compatible
      • 30V/µs Maximum Slew Rate
    • Multiple Receivers
      • ±30V Input Voltage Range
      • 3kΩ to 7kΩ Input Impedance
      • 0.5V Hysteresis to Improve Noise Rejection
    • Pb-Free Plus Anneal Available (RoHS Compliant)


The HIN232-HIN241 family of RS-232 transmitters/receivers interface circuits meet all ElA RS-232E and V.28 specifications, and are particularly suited for those applications where ±12V is not available. They require a single +5V power supply (except HIN239) and feature onboard charge pump voltage converters which generate +10V and -10V supplies from the 5V supply. The family of devices offer a wide variety of RS-232 transmitter/receiver combinations to accommodate various applications.

The drivers feature true TTL/CMOS input compatibility, slewrate- limited output, and 300Ω power-off source impedance. The receivers can handle up to ±30V, and have a 3kΩ to 7kΩ input impedance. The receivers also feature hysteresis to greatly improve noise rejection.


    • Any System Requiring RS-232 Communication Ports
      • Computer - Portable, Mainframe, Laptop
      • Peripheral - Printers and Terminals
      • Instrumentation
      • Modems


Design Tip

I see many manufacturers offer "+/-15kV ESD Protected" (or "High ESD") products. Does this mean that they all have the same level of protection?

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Is there somewhere I can find out what simulations and models (e.g. Spice, PSpice, IBIS) are available on your website?

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