ISL32455EIBZ-T7A

Overview

The ISL32455EIBZ-T7A is a half-duplex RS-485 transceiver manufactured by Renesas Electronics. It operates on a single 5 V supply and supports data rates up to 1 Mb/s. The device features 60 V overvoltage protection on the bus pins and a common-mode rejection capability of 20 V. It includes a shutdown mode for power reduction and is housed in an 8-pin MSOP package. The component functions within an operating temperature range of -40°C to +85°C.

Feature Summary

• Integrated 60 V overvoltage protection on differential bus lines
• High common-mode rejection ratio supporting noisy environments
• Dedicated shutdown pin for low-power standby operation

Applications

• Industrial automation control networks
• Building automation systems
• Process control instrumentation

Procurement Notes

Verify the specific suffix T7A indicates reel packaging when sourcing. Confirm RoHS compliance status through official documentation as requirements vary by region. Check for End-of-Life notices or obsolescence announcements from Renesas prior to finalizing procurement plans.

Selection Notes

Select this model for applications requiring robust bus protection against voltage spikes. Ensure the system operates strictly at 5 V, as the datasheet specifies a fixed supply voltage. Compare against the ISL32455EIUZ variant if a smaller MSOP footprint is not required or if 3.3 V compatibility is needed.

Part Context

This part belongs to the ISL32455E series of ruggedized RS-485 transceivers. It shares functional similarities with other members like the ISL32457 but differs in duplex configuration and specific protection ratings. The product line focuses on providing high reliability in electrically noisy industrial settings.

Replacement Considerations

ISL32455EIBZ (Tape & Reel alternative)

FAQ

What is the maximum data rate supported by this transceiver?

The ISL32455EIBZ-T7A supports data transmission rates up to 1 Mb/s.

Does this component support 3.3 V logic levels?

No, the verified specifications indicate a fixed 5 V operating supply voltage.