ICL3221CV-T

Overview

The ICL3221CV-T is a single driver, single receiver 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 500kbps. The device features an automatic power-down mode that reduces supply current to less than 1µA when inputs are idle. It provides ±15kV ESD protection on all pins and meets EIA/TIA-232 and V.28/V.24 specifications. The component is housed in a 16-pin TSSOP package with a maximum propagation delay of 0.3µs.

Feature Summary

• Automatic power-down mode for ultra-low standby current consumption
• Integrated ±15kV ESD protection on all RS-232 signal pins
• Single driver and single receiver configuration for full-duplex communication
• Compliance with EIA/TIA-232 and V.28/V.24 interface standards

Applications

• Industrial control systems requiring robust serial communication
• Portable battery-powered devices utilizing low-power RS-232 interfaces
• Embedded systems interfacing with modems or barcode scanners
• Medical equipment needing ESD-protected serial links

Procurement Notes

Verify the specific suffix 'CV' against official Renesas documentation to confirm the commercial temperature grade (0°C to +70°C) and TSSOP-16 packaging. Ensure the ordering code matches the required tape-and-reel quantity if applicable. Cross-reference the manufacturer part number with authorized distributors to confirm current production status and RoHS compliance details before finalizing procurement.

Selection Notes

Select this component for applications requiring a single-channel RS-232 interface with minimal quiescent current. The 500kbps data rate suits most standard serial communications. Consider the commercial temperature range limits compared to industrial variants like the ICAZ series. Verify that the 16-pin TSSOP footprint fits the target PCB layout constraints.

Part Context

This part belongs to the ICL32xxE family of RS-232 transceivers designed for low-voltage operation. It serves as a direct replacement for older CMOS-based RS-232 drivers while offering improved power efficiency through automatic shutdown features. The ICL3221 variant specifically provides one driver and one receiver, distinguishing it from dual or quad channel counterparts in the same series.

Replacement Considerations

The ICL3221ECAZ-T and ICL3221EIAZ-T are functionally similar parts within the same family but differ in temperature rating and package type. Verify pin compatibility and electrical specifications before substituting.