ICL3232EIV-20T

Overview

The ICL3232EIV-20T is a full-duplex RS-232 transceiver manufactured by Renesas Electronics Corporation. It operates within a supply voltage range of 3V to 5.5V and supports data rates up to 250kbps. The device features two drivers and two receivers, housed in a 16-TSSOP surface-mount package. It provides ±15kV ESD protection on I/O pins per IEC61000 standards and includes automatic power-down functionality to reduce standby current. The component is rated for an industrial operating temperature range of -40°C to +85°C.

Feature Summary

• Integrated charge pumps requiring only four external capacitors
• Automatic power-down mode for low standby current consumption
• Robust electrostatic discharge protection on RS-232 pins

Applications

• Portable computing devices such as PDAs and laptops
• Industrial communication systems requiring RS-232 interfaces
• Embedded control units with limited power budgets

Procurement Notes

Verify the specific suffix '20' against official Renesas documentation to confirm pinout and electrical characteristics, as standard variants may differ. Confirm RoHS compliance status and moisture sensitivity level prior to assembly planning. Ensure the supplier provides traceable manufacturing lot information consistent with Renesas quality standards.

Selection Notes

Select this component when designing for 3V to 5.5V single-supply systems requiring full-duplex RS-232 communication. It serves as a drop-in replacement for legacy MAX3232E devices. Consider the 16-TSSOP package constraints and required external capacitor footprint during PCB layout. Verify compatibility with host logic levels if interfacing with non-5V microcontrollers.

Part Context

This part belongs to the ICL32xxE family of low-power RS-232 transceivers from Renesas (formerly Intersil). The family is designed for portable applications where power efficiency is critical. The ICL3232 variant specifically offers two drivers and two receivers, distinguishing it from single-driver or quad-driver counterparts in the same series.

Replacement Considerations

ICL3232EIVZ-T7A

FAQ

Does the ICL3232EIV-20T support automatic power-down?

Yes, the device includes an automatic power-down feature that reduces supply current to approximately 1µA when no valid signal is present on the receiver inputs.

What is the ESD protection rating for the I/O pins?

The transmitter outputs and receiver inputs provide ±15kV ESD protection according to the Human Body Model and ±15kV air gap protection per IEC61000-4-2.