ICL3232IV-T

Overview

The ICL3232IV-T is a dual RS-232 transceiver manufactured by Renesas Electronics Corporation, designed for EIA/TIA-232 and V.28/V.24 compliance. It operates on a single power supply ranging from 3.0V to 5.5V, supporting data rates up to 250kbps. The device integrates two drivers and two receivers in full-duplex configuration within a 16-pin TSSOP package. Key electrical specifications include a typical supply current of 1µA in shutdown mode (when applicable) or low standby consumption, ±15kV human body model ESD protection on all pins, and output voltages meeting RS-232 standards. The operating temperature range extends from -40°C to +85°C.

Feature Summary

• Integrated ±15kV ESD protection on all RS-232 signal pins for enhanced robustness
• Low power consumption design suitable for battery-operated portable equipment
• Full compatibility with standard RS-232 voltage levels across the 3V to 5.5V supply range
• Compact 16-pin TSSOP surface-mount packaging for space-constrained applications

Applications

• Portable computers and notebook PCs requiring serial communication interfaces
• Battery-powered handheld devices and medical instruments
• Industrial control systems and modems
• Peripherals such as printers and scanners

Procurement Notes

Verify the specific suffix 'IV' against the manufacturer's official datasheet to confirm pinout, package dimensions, and thermal characteristics. Ensure the ordering code matches the exact tape-and-reel quantity required for production. Cross-reference the RoHS status and moisture sensitivity level (MSL) with current environmental compliance documents before finalizing procurement orders.

Selection Notes

Select this component when a dual-channel RS-232 interface is needed with low standby power consumption. It is appropriate for designs powered by 3.3V or 5V rails where ESD immunity is critical. Compare against the ICL3232E series if higher ESD ratings are required, or the ICL3222 series if shutdown functionality is necessary. Ensure the 16-TSSOP footprint fits the PCB layout constraints.

Part Context

This part belongs to the Intersil/Renesas ICL32xx family of RS-232 transceivers, which are industry-standard replacements for older MAXIM/MAXIM-derived parts. The ICL3232 variant specifically provides two drivers and two receivers. The 'IV' suffix typically denotes the industrial temperature grade (-40°C to +85°C) and the TSSOP-16 package type, distinguishing it from SOIC or DIP variants.

Replacement Considerations

Direct pin-compatible substitutes include the ST3232C and MAX3232E, though external capacitor values may differ. Verify that alternative sources like Texas Instruments or Maxim Integrated offer components with identical 3V-to-5.5V operation and 250kbps speed ratings. Check for any differences in ESD protection levels or shutdown pin configurations.