ICL3232EIBN

Overview

The ICL3232EIBN is a dual RS-232 transceiver manufactured by Intersil, designed for full-duplex communication. It operates within a supply voltage range of 3 V to 5.5 V and supports data rates up to 250 kb/s. The device integrates two drivers and two receivers in a single package. Key electrical specifications include a maximum output current of 35 mA and a propagation delay of 150 ns. It features 15 kV ESD protection on all pins and consumes only 1 uA of supply current in shutdown mode, although this specific variant lacks a dedicated shutdown pin. The component is rated for industrial operating temperatures from -40°C to +85°C.

Feature Summary

• Provides true RS-232 signal levels with high ESD protection capability
• Operates efficiently from a single 3 V to 5.5 V power supply
• Integrates dual drivers and receivers for full-duplex communication
• Requires minimal external components for standard operation

Applications

• Industrial control systems requiring robust serial communication
• Battery-powered portable equipment due to low power consumption
• Modems and fax machines utilizing RS-232 interfaces
• Point-of-sale terminals and handheld data collection devices

Procurement Notes

Verify the exact suffix against manufacturer documentation to confirm pinout compatibility and package type. Ensure the selected variant matches the required ESD protection level and temperature rating for the target application environment. Cross-reference the datasheet revision to confirm electrical characteristics and mechanical dimensions before finalizing procurement.

Selection Notes

Select this component when a dual-channel RS-232 interface is needed with high ESD tolerance. It is suitable for designs requiring operation from a single low-voltage supply without the need for charge pumps. Consider the TSSOP or SOIC package availability based on PCB layout constraints. Verify that the lack of a shutdown pin aligns with the system's power management strategy.

Part Context

This part belongs to the ICL3232 family of RS-232 transceivers produced by Intersil, now part of Renesas Electronics. The family includes variants with different packages, data rates, and shutdown capabilities. The ICL3232 series is widely recognized for its reliability in industrial and commercial serial communication applications.

Replacement Considerations

Compatible substitutes include the ST3232C and MAX3232. Verify pin-to-pin compatibility and ensure the replacement meets the same voltage and ESD requirements.