ICL3232IBN-T

Overview

The ICL3232IBN-T is a dual RS-232 transceiver manufactured by Intersil, now part of Renesas Electronics. It operates on a single power supply ranging from 3 V to 5.5 V and supports data rates up to 250 kb/s. The device integrates two drivers and two receivers for full-duplex communication. It features low supply current of 1 mA and includes internal charge pumps requiring only external 0.1 µF capacitors. The component is housed in a 16-pin SOIC-Narrow package and is rated for an industrial operating temperature range of -40 °C to +85 °C.

Feature Summary

• Integrated dual drivers and dual receivers for complete RS-232 signal transmission and reception within a single IC.
• Operates reliably with a single 3 V to 5.5 V power supply, eliminating the need for multiple voltage rails.
• Includes internal charge pump circuitry that minimizes external component count by utilizing small 0.1 µF capacitors.

Applications

• Industrial control systems requiring robust serial communication interfaces.
• Portable battery-powered equipment benefiting from low power consumption.
• Embedded systems interfacing with modems or other RS-232 compliant peripherals.

Procurement Notes

Verify the specific suffix against official datasheets to confirm package type and temperature grade. Ensure compatibility with existing PCB footprints for the 16-pin SOIC-Narrow configuration. Confirm moisture sensitivity levels and reflow soldering profiles prior to assembly to prevent damage during manufacturing processes.

Selection Notes

Select this component when a dual-channel RS-232 interface is required with minimal external capacitance. It is suitable for designs constrained by space due to its compact package and low capacitor requirements. Consider the 250 kb/s speed limit when evaluating higher baud rate needs.

Part Context

This part belongs to the ICL3232 series of line transceivers designed for EIA/TIA-232 applications. The IBN suffix typically denotes the SOIC-Narrow package variant. The series is characterized by its ability to function at lower voltages compared to traditional 5 V-only transceivers while maintaining compliance with standard voltage specifications.

Replacement Considerations

Direct substitutes include the ICL3232IBNZ for the same package family. Other compatible devices in the broader RS-232 transceiver category may require verification of pinout compatibility and electrical parameter alignment before substitution.