ISL32274EFBZ-T

Overview

The ISL32274EFBZ-T is a single-driver RS-422 interface integrated circuit manufactured by Renesas Electronics. It operates within a supply voltage range of 3 V to 5.5 V, supporting standard 3.3 V and 5 V logic levels. The device delivers data transmission rates up to 10 Mb/s with a typical quiescent supply current of 800 uA. It features robust electrostatic discharge protection rated at ±15 kV on the bus I/O pins. The component is housed in a 16-lead Quad Flat Package (QD) with SOIC-style dimensions and is specified for industrial operation across a temperature range of -40 °C to +125 °C.

Feature Summary

• Single differential driver configuration for RS-422 communication
• High-voltage ESD protection capability on bus lines
• Wide operating temperature range suitable for industrial environments

Applications

• Industrial automation control systems
• Building management and security networks
• Data acquisition and monitoring equipment

Procurement Notes

Verify the specific suffix designation against official Renesas documentation to confirm tape-and-reel packaging requirements. Confirm end-of-life status or obsolescence notices prior to procurement planning. Ensure compatibility with existing PCB footprints for the 16-lead QD package. Validate that the selected variant meets all required environmental and electrical specifications for the target application.

Selection Notes

Select this component when a single RS-422 transmitter is required without an integrated receiver. Consider the 10 Mb/s speed limit and 800 uA quiescent current for power-sensitive designs. Verify that the 16-lead QD package fits the available board space. Ensure the system design accounts for the ±15 kV ESD protection limits on the output lines.

Part Context

This part belongs to the ISL32274E series of RS-422 drivers. It is functionally related to other members of the family, such as the ISL32272E, which offers multiple drivers in different packages. The suffix 'T' typically indicates tape-and-reel packaging for automated assembly, distinguishing it from tube-packaged variants like the ISL32274EFBZ.

Replacement Considerations

Direct substitutes include other single-driver RS-422 transceivers from Renesas or competitors offering identical pinouts and electrical characteristics. Verify package compatibility for the 16-lead QD form factor. Ensure replacement parts support the same 3 V to 5.5 V supply range and 10 Mb/s data rate.