ICL3237ECAZ-T

Overview

The ICL3237ECAZ-T is an RS-232 transceiver manufactured by Renesas Electronics, housed in a 28-pin SSOP package. It supports full-duplex communication with five drivers and three receivers, operating at data rates up to 1 Mb/s. The device functions within a supply voltage range of 3 V to 5.5 V, consuming only 1 mA of quiescent current. It features 15 kV ESD protection on all pins and includes a shutdown mode for power conservation. The component operates reliably between 0°C and +70°C.

Feature Summary

• Integrates five independent drivers and three receivers for multi-port serial communication
• Provides robust electrostatic discharge protection rated at 15 kV across all signal lines
• Incorporates a low-power shutdown mode to minimize energy consumption during idle periods

Applications

• Industrial control systems requiring multiple RS-232 connections
• Portable instrumentation with battery-powered constraints
• Communication modules needing high ESD resilience

Procurement Notes

Verify the specific suffix 'T' indicates reel packaging when sourcing. Confirm RoHS compliance status through official documentation as required by regional regulations. Check moisture sensitivity levels for proper handling and storage conditions prior to assembly. Ensure the SSOP-28 footprint matches the target PCB design specifications exactly.

Selection Notes

Select this component when five transmit channels are necessary alongside three receive paths. Consider the 1 Mb/s speed limit against higher-speed alternatives if data throughput requirements exceed this threshold. Evaluate the 3 V minimum supply voltage against system power rails to ensure stable operation without additional level shifting or regulation.

Part Context

This part belongs to the ICL3237 series of RS-232 interface integrated circuits. It shares the SSOP-28 form factor with related models like the ICL3238CAZ-T but differs in driver count and data rate capabilities. The manufacturer designation links it to the Intersil heritage now managed under Renesas Electronics.

Replacement Considerations

Direct substitutes include other 5-driver RS-232 transceivers in SSOP-28 packages. Verify pin compatibility and electrical parameters such as supply voltage range and data rate before swapping.