ICL3232IBN

Overview

The ICL3232IBN is a dual driver and receiver RS-232 transceiver manufactured by Intersil. It operates on a single power supply ranging from 3V to 5.5V, consuming a maximum supply current of 1mA. The device supports data rates up to 250kbps and provides full-duplex communication. It features integrated charge pumps that eliminate the need for external voltage sources. The component includes 15kV ESD protection on RS-232 pins and meets EIA/TIA-232 specifications. It is housed in a 16-pin SOIC package with an operating temperature range of -40°C to +85°C.

Feature Summary

• Integrated charge pump circuitry eliminates the requirement for external positive or negative voltage supplies.
• Provides robust electrostatic discharge protection rated at 15kV on all RS-232 input and output pins.
• Maintains compliance with EIA/TIA-232 interface standards even when powered by a 3V supply.
• Delivers low power consumption with a typical supply current of 1mA during active operation.

Applications

• Portable computing devices such as PDAs and palmtops requiring low-power serial interfaces.
• Industrial control systems utilizing RS-232 communication protocols.
• Embedded systems connecting microcontrollers to peripheral equipment via serial ports.

Procurement Notes

Verify the specific suffix against official Renesas or Intersil documentation to confirm pinout compatibility and electrical tolerances. Ensure the procurement channel provides valid traceability for moisture sensitivity level handling requirements. Confirm RoHS compliance status if restricted substances are mandated for the target assembly process.

Selection Notes

Select this component when a dual-channel RS-232 solution is required for space-constrained designs. It is suitable for applications needing reliable communication at speeds up to 250kbps without external boost capacitors. Consider the industrial temperature range if the environment exceeds standard commercial limits.

Part Context

This part belongs to the ICL3232 family of RS-232 transceivers designed for low-voltage operation. The IBN suffix typically denotes a specific package variant, often associated with the SOIC-16 form factor used in surface-mount assemblies. It serves as a direct replacement for legacy components in older PC and industrial serial port designs.

Replacement Considerations

Direct replacements include the ICL3232IEPE and ICL3232IVZ. Verify pin-to-pin compatibility and ensure the substitute maintains the same 250kbps data rate capability and 15kV ESD protection rating.