ICL3221EIVZ-T7A

Overview

The ICL3221EIVZ-T7A 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 250kbps. The device features ±15kV ESD protection on all pins and includes an automatic power-down mode that reduces operating current to 1mA. It is housed in a 16-TSSOP surface-mount package with a width of 4.40mm. The component functions as a full-duplex transceiver compliant with the RS-232 protocol and is rated for an industrial operating temperature range from -40°C to +85°C.

Feature Summary

• Integrated ±15kV electrostatic discharge protection on all inputs and outputs
• Automatic power-down mode significantly reduces quiescent current consumption
• Single-ended receiver input configuration for standard RS-232 signaling

Applications

• Industrial communication systems requiring robust ESD immunity
• Portable battery-powered devices utilizing low-power RS-232 interfaces
• Embedded control units interfacing with legacy serial peripherals

Procurement Notes

Verify the specific suffix T7A confirms the reel packaging format required for automated assembly processes. Confirm the IVZ designation aligns with the intended thermal and mechanical specifications for the target printed circuit board layout. Ensure compatibility with RoHS3 standards if environmental compliance is mandated for the final product assembly line.

Selection Notes

Select this component when a single channel of RS-232 communication is sufficient for the design requirements. The 3V to 5.5V operating range makes it suitable for both 3.3V and 5V logic systems. Consider the 250kbps speed limit when evaluating high-speed data transmission needs, as higher baud rates may require alternative devices within the family.

Part Context

This part belongs to the ICL3221 series of low-power RS-232 transceivers. It serves as a simplified alternative to dual-channel variants like the ICL3232, offering a reduced pin count and lower cost for applications needing only one transmitter and receiver path. The T7A suffix indicates tape-and-reel packaging for high-volume manufacturing efficiency.

Replacement Considerations

ICL3221EIAZ-T7A offers identical functionality in an SSOP-16 package. ICL3221EIVZ-T provides the same electrical characteristics in a non-tape-and-reel tube format. Verify pinout compatibility before substituting with other single-driver RS-232 transceivers from different manufacturers.