ICL3238CA

Overview

The ICL3238CA is an RS-232 interface integrated circuit manufactured by Renesas Electronics. It operates within a supply voltage range of 3 V to 5.5 V and supports data rates up to 500 kb/s. The device features three receivers and one driver, providing full-duplex communication capabilities. It incorporates 15 kV ESD protection on both I/O and logic pins. The typical operating supply current is 1 mA. The component is housed in an SSOP-28 package and functions within a temperature range of 0°C to +70°C.

Feature Summary

• Integrated 15 kV electrostatic discharge protection for robust signal integrity
• Low power consumption with automatic shutdown functionality
• Single-driver and triple-receiver configuration for flexible serial communication

Applications

• Industrial control systems requiring reliable serial data transmission
• Portable battery-powered equipment due to low current draw
• Communication modules utilizing RS-232 standards

Procurement Notes

Verify the specific suffix and manufacturer details when sourcing, as the ICL3238CA was originally an Intersil product now under Renesas. Confirm RoHS compliance status and check for end-of-life notifications or obsolescence warnings from authorized distributors before procurement planning.

Selection Notes

Select this component for applications requiring a single driver and multiple receivers within a 3V to 5.5V supply range. Ensure the design accommodates the SSOP-28 package dimensions and the specified commercial temperature limits. Verify that the 500 kb/s maximum data rate meets the system's throughput requirements.

Part Context

This part belongs to the ICL3238 series of RS-232 transceivers. It represents the legacy Intersil product line acquired by Renesas Electronics. The CA suffix typically denotes the commercial temperature grade and specific packaging variant within the broader family of low-power RS-232 solutions.

Replacement Considerations

The MAX3238ECAI+T from Analog Devices serves as a functional substitute. Both devices offer similar voltage ranges and ESD protection levels. Verify pin compatibility and ensure the replacement meets the specific driver/receiver count requirements of the original design.