ICL3221EIA-T

Overview

The ICL3221EIA-T is a single driver, single receiver RS-232 transceiver manufactured by Intersil (Renesas). It operates on a single power supply ranging from 3 V to 5.5 V, supporting both 3.3 V and 5 V logic levels. The device features an automatic shutdown mode that reduces operating current to approximately 1 µA when inputs are idle. It provides full-duplex communication with a data rate of up to 250 kb/s and includes 15 kV ESD protection on all pins. The component is housed in a 16-pin SSOP package and is rated for an industrial temperature range of -40°C to +85°C.

Feature Summary

• Integrates an automatic power-down feature to minimize current consumption during idle periods.
• Provides robust electrostatic discharge protection across all signal interfaces.
• Supports standard RS-232 voltage levels using a single low-voltage power supply.

Applications

• Industrial control systems requiring reliable serial communication.
• Portable battery-powered devices utilizing RS-232 interfaces.
• Embedded systems needing low-power serial data transmission.

Procurement Notes

Verify the specific suffix against official Renesas documentation to confirm package type and temperature grade. Ensure compatibility with existing PCB footprints for the SSOP-16 configuration. Confirm moisture sensitivity level handling requirements during assembly. Cross-reference the manufacturer part number with current distributor listings to validate authenticity and availability status.

Selection Notes

Select this component for applications requiring a single channel of RS-232 communication with minimal power consumption. It is suitable for designs operating between 3 V and 5.5 V where space is constrained by the SSOP-16 package. Consider alternative models if higher data rates or multiple drivers are required. Verify that the 15 kV ESD rating meets the environmental protection standards of the target application.

Part Context

This part belongs to the ICL3221 family of low-power RS-232 transceivers. It shares functional similarities with other single-channel devices in the series but differs in packaging and temperature specifications based on its suffix. The ICL3221 series is designed to replace older, higher-power RS-232 solutions in modern low-voltage digital systems.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult official Renesas documentation for direct pin-compatible alternatives within the same product family.