ISL31498EIUZ-T7A

Overview

The ISL31498EIUZ-T7A is a half-duplex, fault-protected RS-485/RS-422 differential transceiver powered by a single 5V supply. It supports data rates up to 15 Mbps and operates within an extended common mode voltage range of ±25V. The device features ±60V bus pin fault protection and ±80V transient overvoltage tolerance. It includes hot plug circuitry that maintains three-state outputs during power-up or power-down events. The component is housed in an 8-lead MSOP package with an operating temperature range from -40°C to +85°C.

Feature Summary

• Extended common mode range exceeding standard RS-485 requirements for robust operation
• High transient overvoltage tolerance providing enhanced fault protection
• Full fail-safe receiver design ensuring logic high output on idle or undriven buses

Applications

• Utility meters and automated meter reading systems
• PROFIBUS and field bus networks
• Security camera networks
• Industrial process control networks

Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm tape and reel packaging specifications. Ensure the component meets RoHS compliance standards required for the target assembly process. Cross-reference the datasheet revision to validate current electrical characteristics before finalizing procurement orders.

Selection Notes

Select this component for applications requiring high noise immunity and extended common mode voltage tolerance. The half-duplex configuration is suitable for multiplexed communication lines. Verify that the system power supply remains within the 4.5V to 5.5V range to ensure proper operation of the driver and receiver circuits.

Part Context

This part belongs to the ISL3149xE family of fault-protected transceivers designed to exceed RS-485 and RS-422 standards. The family offers various duplex configurations and data rate options. The ISL31498E specifically provides a half-duplex solution optimized for high-speed communication in electrically noisy industrial environments.

Replacement Considerations

Consult the ISL32490E series datasheet for exact replacement options if upgrading to newer designs. Verify pin compatibility and electrical parameter alignment when substituting other RS-485 transceivers in existing layouts.