ICL3221IAZ-T7A

Overview

The ICL3221IAZ-T7A is a single-driver, single-receiver RS-232 transceiver manufactured by Renesas Electronics. It operates within a supply voltage range of 3 V to 5.5 V, supporting both 3.3 V and 5 V logic systems. The device achieves data rates up to 250 kb/s in full-duplex mode. Key electrical specifications include a maximum operating current of 1 mA and ESD protection rated at 15 kV. It functions reliably across an industrial temperature range from -40 °C to +85 °C. The component is housed in a compact SSOP-16 surface-mount package, designed for efficient signal transmission in low-power interface applications.

Feature Summary

• Integrated single driver and receiver for full-duplex RS-232 communication
• Low power consumption with 1 mA operating current for battery efficiency
• Robust electrostatic discharge protection rated at 15 kV
• Industrial grade temperature stability from -40 °C to +85 °C

Applications

• Portable devices requiring serial communication interfaces
• Industrial control systems with RS-232 connectivity needs
• Embedded systems utilizing low-voltage microcontrollers

Procurement Notes

Verify the specific suffix 'T7A' indicates tape-and-reel packaging when sourcing. Confirm RoHS compliance status through official manufacturer documentation or authorized distributor certificates. Ensure the supplier provides valid traceability records for the Renesas Electronics brand. Cross-reference the part number against current datasheets to confirm active status and pinout compatibility before finalizing orders.

Selection Notes

Select this component for designs requiring a single-channel RS-232 link with minimal power draw. It is suitable for space-constrained PCB layouts due to the SSOP-16 footprint. Consider the 250 kb/s speed limit when evaluating high-throughput requirements. Verify that the 3 V to 5.5 V input range aligns with the system's power supply architecture.

Part Context

This part belongs to the ICL3221 series of RS-232 transceivers. It shares core functional characteristics with other variants in the family, such as the ICL3221IAZ, differing primarily in packaging format. The series is characterized by low-power operation and compatibility with standard RS-232 protocols under varying voltage conditions.

Replacement Considerations

The ICL3221IAZ serves as a direct pin-compatible alternative if tube packaging is acceptable. Verify that any substitute maintains the same 250 kb/s data rate and 15 kV ESD rating. Check for identical SSOP-16 dimensions to ensure mechanical fit.