ISL3159EFRZ-T7A

Overview

The ISL3159EFRZ-T7A is a half-duplex RS-485 transceiver manufactured by Renesas Electronics Corporation. It operates at a maximum data rate of 40 Mb/s and supports up to 256 unit loads on the bus. The device functions within a supply voltage range of 4.5 V to 5.5 V, with a typical operating current of 4 mA. It features an industrial temperature range from -40°C to +125°C and includes integrated ESD protection rated at ±15 kV (HBM) and ±8 kV (IEC). The component is housed in a 10-lead DFN-EP package.

Feature Summary

• Integrated IEC 61000-4-2 electrostatic discharge protection for robust field operation
• Fail-safe receiver design ensures a high logic state during idle or fault conditions
• Low-power shutdown mode significantly reduces standby current consumption

Applications

• Industrial automation control networks
• Building automation systems
• Metering infrastructure communication

Procurement Notes

Verify the specific suffix 'FRZ' against official Renesas documentation to confirm the exact tape-and-reel packaging configuration and moisture sensitivity level. Confirm end-of-life status and lead availability through authorized distributors, as this part number may be subject to discontinuation or substitution protocols.

Selection Notes

Select this component when designing systems requiring high-speed 40 Mb/s RS-485 communication over long distances with multiple nodes. Ensure the application environment demands the extended -40°C to +125°C temperature range and that the 5 V supply rail aligns with the system's power architecture.

Part Context

This device belongs to the ISL3159E series of ruggedized RS-485 transceivers. It shares functional similarities with other members of the family but is distinguished by its specific package type and thermal characteristics. The series is designed for demanding industrial environments requiring reliable differential signaling.

Replacement Considerations

Consult the Renesas datasheet for officially listed pin-compatible alternatives. Verify that any substitute maintains the 40 Mb/s data rate and identical ESD protection ratings.