ISL3177EIUZ-T

Overview

The ISL3177EIUZ-T is a single RS-485/RS-422 transceiver manufactured by Renesas Electronics. It operates on a single 3.3V supply and supports data rates up to 20 Mb/s. The device features ±15kV IEC61000 ESD protection and full fail-safe receiver inputs that ensure a logic high output when inputs are floating, shorted, or undriven. It presents a true 1/8 unit load, allowing up to 256 devices on the bus. Operating temperatures range from -40°C to +85°C. Quiescent current is 800 µA maximum, with shutdown current at 10 nA. It is housed in an MSOP-8 package.

Feature Summary

• IEC61000 ESD protection on RS-485 I/O pins with ±15kV Class 3 level
• Full fail-safe receiver design for reliable operation under fault conditions
• Hot plug capability maintaining high impedance during power stabilization
• Slew rate limited drivers to reduce electromagnetic interference

Applications

• Remote utility meter reading systems
• High node count field bus networks
• Security camera networks
• Building environmental control systems

Procurement Notes

Verify the manufacturer part number ISL3177EIUZ-T against official Renesas documentation to confirm authenticity. Ensure the component matches the specified MSOP-8 package and RoHS compliance status. Cross-reference datasheet revisions to validate electrical characteristics and pinout configurations before integration into designs.

Selection Notes

Select this component for applications requiring high-speed differential communication with robust ESD protection. The 1/8 unit load specification enables extensive network topologies without repeaters. Verify that the 3.3V supply voltage aligns with system requirements and that the operating temperature range meets environmental constraints.

Part Context

This component belongs to the ISL317xE series of low-power, high-speed RS-485/RS-422 transceivers. The series includes variants with slew rate limiting for EMI reduction and options for half-duplex or full-duplex configurations. The ISL3177E specifically provides full-duplex functionality in a compact MSOP package.

Replacement Considerations

Consult official Renesas documentation for verified substitute part numbers within the ISL317xE family. Ensure any replacement maintains compatibility with RS-485/RS-422 standards and matches the required package type and electrical specifications.