ICL3232IBNZ

Overview

The ICL3232IBNZ is a dual RS-232 transceiver manufactured by Renesas Electronics, designed for full-duplex data communication. It operates within a supply voltage range of 3.0 V to 5.5 V and supports data rates up to 250 kbps. The device integrates two drivers and two receivers, meeting EIA/TIA-232 and V.28/V.24 specifications. It features ±15 kV electrostatic discharge (ESD) protection on all pins and draws only 1 mA of operating current. Packaged in a 16-pin SOIC-Narrow format, it functions reliably across an industrial temperature range from -40°C to +85°C.

Feature Summary

• Integrated ±15 kV ESD protection on all signal pins ensures robust performance against electrostatic discharge events without requiring external components.
• Low power consumption design with a typical operating current of 1 mA facilitates efficient operation in battery-powered or energy-sensitive applications.
• Compliance with EIA/TIA-232 and V.28/V.24 standards guarantees compatibility with standard RS-232 serial communication interfaces.

Applications

• Industrial control systems requiring reliable serial communication under harsh environmental conditions.
• Portable instrumentation and handheld devices utilizing low-voltage power supplies.
• Embedded systems interfacing microcontrollers with RS-232 peripherals such as modems or barcode scanners.

Procurement Notes

Verify the specific suffix 'IBNZ' corresponds to the SOIC-Narrow package and industrial temperature grade (-40°C to +85°C). Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure sourcing channels provide genuine Renesas Electronics products to avoid counterfeit components affecting reliability.

Selection Notes

Select this component when a dual-channel RS-232 interface is required with integrated ESD protection and low standby current. It is suitable for designs needing full-duplex communication within the 3.0 V to 5.5 V supply range. Consider the SOIC-16 footprint constraints and verify that the 250 kbps data rate meets system timing requirements.

Part Context

This part belongs to the ICL3232E family of RS-232 transceivers from Renesas/Intersil. These devices are engineered to provide reliable serial communication in environments where ESD immunity and low power consumption are critical. The ICL3232 series is widely used in legacy and modern embedded systems requiring standardized serial data exchange.

Replacement Considerations

Direct pin-compatible alternatives within the same family include ICL3232ECBNZ and ICL3232EIV-16Z-T. Verify package type (SOIC vs TSSOP) and temperature range specifications before substitution to ensure mechanical and thermal compatibility.