Overview

The ICL232 is a dual RS-232 transmitter/receiver interface circuit that meets all ElA RS-232C and V. 28 specifications. It requires a single +5V power supply, and features two onboard charge pump voltage converters which generate +10V and -10V supplies from the 5V supply. 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 have hysteresis to improve noise rejection.

ICL232 Functional Diagram
ICL232 Functional Diagram
  • Meets all RS-232C and V.28 specifications
  • Requires only single +5V power supply
  • Onboard voltage doubler/inverter
  • Low power consumption
  • 2 drivers
  • ±9V output swing for +5V input
  • 300Ω power-off source impedance
  • output current limiting
  • TTL/CMOS compatible
  • 30V/µs maximum slew rate
  • 2 Receivers
  • ±30V input voltage range
  • 3kΩ to 7kΩ input impedance
  • 0.5V hysteresis to improve noise rejection
  • All critical parameters are guaranteed over the entire commercial, industrial and military temperature ranges
  • Pb-free (RoHS compliant)

Applications

  • Any System Requiring RS-232 Communications Port Computer - Portable and Mainframe Peripheral - Printers and Terminals Portable Instrumentation Modems
  • Dataloggers

Documentation

Design & Development

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

Explore ECAD Models
Diagram of ECAD Models

Product Options

    Processing table
    Pkg. Type
    Carrier Type
    MOQ
    Buy / Sample
    Part Number
    ICL232CBEZ
    circleObsolete
    memory
    spa
    view_in_ar
    Buy Now
    		SOICW Tube 960
    ICL232CBEZT
    circleObsolete
    memory
    spa
    view_in_ar
    		SOICW Reel 1000
    Parametric Table tips

    Tips for Using This Parametric Table:

    • Hide Filters button in header: Collapse or expands filters
    • Column sort buttons in header: Sort Column alphabetically / numerically descending or ascending
    • Reset button in header: Reset all filters to the page default
    • Full Screen button in header: Expand the table to full screen view (user must close out of full screen before they can interact with rest of page)
    • Export button in header: Export the filtered results of the table to an Excel document
    • Filter parts search bar in header: Type to filter table results by part number
    • Hide column button in column headers: Select to hide columns in table
    • AND / OR toggle switches in header: Toggles the logic of this particular filter to be “AND” or “OR” logic for filtering results
    • Multiselect checkboxes at beginning of each row in table: Select these checkboxes to compare products against each other
    • Document icon next to product name in row: View the featured document for this product
    • Chip icon next to the right of the document icon in row: View the block diagram for this product
    • Cart icon to the right of the chip icon: Indicates that samples are available for this product