ICL3221EFVZ-T7A

Overview

The ICL3221EFVZ-T7A is a single-driver, single-receiver RS-232 transceiver manufactured by Renesas Electronics. It operates within a supply voltage range of 3.0 V to 5.5 V and supports data rates up to 250 kb/s. The device features ±15 kV ESD protection on all pins and incorporates an automatic power-down mode that reduces operating current to less than 1 µA when no signal activity is detected for over 300 ms. It is housed in a 16-pin SSOP package and functions as a full-duplex interface compliant with TIA/EIA-232-F standards.

Feature Summary

• Integrated automatic power-down circuitry for significant standby current reduction
• Robust electrostatic discharge protection rated at ±15 kV across all interfaces
• Single-supply operation utilizing internal charge pump for voltage generation
• Full-duplex communication capability with standard RS-232 signaling levels

Applications

• Portable battery-powered equipment requiring low standby current
• Industrial control systems needing high ESD immunity
• Modem and fax machine serial communication interfaces
• Point-of-sale terminals and handheld data collection devices

Procurement Notes

Verify the specific suffix 'FVZ' against official Renesas documentation to confirm package type and tape-and-reel specifications. Ensure compliance with RoHS directives and check moisture sensitivity levels prior to surface-mount assembly. Confirm lead-free status and manufacturing origin through authorized distributors.

Selection Notes

Select this component for applications requiring a single driver and receiver with minimal quiescent current consumption. It is suitable for designs where space is constrained by the SSOP-16 footprint. Consider alternative models if higher data rates or multiple drivers are required for complex bus topologies.

Part Context

This part belongs to the ICL3221 series of low-power RS-232 transceivers. It shares functional similarities with other single-driver variants in the Intersil/Renesas portfolio but is distinguished by its specific packaging and power-down characteristics. The series is designed to bridge microcontroller logic levels with RS-232 voltage requirements efficiently.

Replacement Considerations

Direct substitutes include the ICL3221EIAZ and ICL3221EVZ variants, which offer identical electrical performance in different package formats. Verify pin compatibility and thermal characteristics before swapping between SSOP and other housing types.