ISL3179EFUZ-T7A

Overview

The ISL3179EFUZ-T7A is a single half-duplex RS-485/RS-422 transceiver manufactured by Renesas Electronics Corporation. It operates on a single 3.3V power supply and supports data rates up to 40 Mbps. The device features high ESD protection, full fail-safe receiver inputs, and hot-plug circuitry to maintain high impedance during power stabilization. It utilizes an SOIC-Narrow-8 package and functions within a temperature range of -40°C to +125°C. The unit load is specified as 1/5, allowing up to 160 transceivers on the bus.

Feature Summary

• High ESD protection compliant with RS-485 standards
• Full fail-safe design ensures logic high output when inputs are floating or undriven
• Hot-plug circuitry maintains high impedance state during power-up

Applications

• Industrial communication networks requiring balanced transmission
• Building automation systems utilizing RS-485 protocols
• Metering applications needing robust interface connectivity

Procurement Notes

Verify the specific suffix 'T7A' corresponds to the required tape and reel packaging configuration for automated assembly processes. Confirm that the SOIC-Narrow-8 package dimensions align with the target PCB footprint constraints. Ensure the component meets RoHS compliance requirements for the intended market regulations before finalizing procurement orders.

Selection Notes

Select this component for designs requiring a single transceiver with half-duplex capability in a compact 8-lead package. The 1/5 unit load specification allows for higher node density compared to standard 1-unit load devices without repeaters. Verify that the 3.3V operating voltage matches the system power rails and that the extended temperature range suits the environmental conditions.

Part Context

This part belongs to the ISL3179E series of high ESD protected transceivers. It shares functional similarities with the ISL3180E but differs in duplex configuration, offering half-duplex operation instead of full-duplex. Both devices support the same data rates and power specifications while maintaining compatibility with RS-422 and RS-485 standards.

Replacement Considerations

The ISL3179EIUZ-T7A serves as a direct pin-compatible alternative within the same product family. Verify that the package variant (Narrow vs Standard) matches the existing board layout if substituting between different suffix codes.