ICL3237EIAZ

Overview

The ICL3237EIAZ is a low-power RS-232 transceiver manufactured by Renesas Electronics Corporation, housed in an SSOP-28 package. It operates on a single power supply ranging from 3 V to 5.5 V and supports data rates up to 1 Mb/s. The device integrates five drivers and three receivers for full-duplex communication. Key electrical specifications include a maximum operating current of 1 mA and ESD protection rated at 15 kV. It functions within an industrial temperature range of -40°C to +85°C and includes a shutdown feature to minimize power consumption during idle periods.

Feature Summary

• Integrates five independent drivers and three receivers for comprehensive serial communication capabilities.
• Features a dedicated shutdown mode that significantly reduces quiescent current for power-sensitive applications.
• Provides robust electrostatic discharge (ESD) protection rated at 15 kV to safeguard connected circuitry.
• Operates reliably across a wide industrial temperature range without requiring external charge pumps.

Applications

• Industrial control systems requiring reliable serial communication interfaces.
• Portable battery-powered equipment utilizing low-voltage logic levels.
• Data acquisition modules needing multiple transmit and receive channels.
• Embedded systems with strict power consumption constraints.

Procurement Notes

Verify the specific suffix 'EIAZ' corresponds to the SSOP-28 package and industrial temperature grade when sourcing. Confirm RoHS compliance status through official manufacturer documentation or authorized distributor certificates prior to procurement. Ensure handling procedures account for moisture sensitivity level requirements specified in the datasheet to prevent package damage during assembly.

Selection Notes

Select this component when designing systems requiring five driver outputs and three receiver inputs within a compact surface-mount footprint. It is suitable for applications demanding operation between 3 V and 5.5 V supplies where low standby current is critical. Consider alternative pin-compatible devices if higher data rates or different packaging options are required for the specific board layout constraints.

Part Context

This part belongs to the ICL3237 series of RS-232 transceivers, originally developed by Intersil and now produced by Renesas Electronics. The series is designed to replace older legacy components while offering improved power efficiency and integration. It serves as a standard interface solution for microcontrollers and DSPs connecting to RS-232 peripherals in both commercial and industrial environments.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Verify compatibility with existing designs by comparing pin configurations, electrical characteristics, and package dimensions against potential alternatives before implementation.