ISL31496EIUZ

Overview

The ISL31496EIUZ is a full-duplex, fault-protected RS-485/RS-422 transceiver manufactured by Renesas Electronics Corporation. It operates within a supply voltage range of 4.5V to 5.5V and supports data rates up to 15Mbps. The device features an extended common mode voltage range of ±25V and bus pin protection against faults up to ±60V. It utilizes a 10-lead MSOP package with an operating temperature range from -40°C to +85°C.

Feature Summary

• Full fail-safe receiver design ensures logic high output when inputs are floating, shorted, or on an undriven terminated bus.
• Hot plug circuitry maintains three-state outputs during power-up and power-down events.
• High transient overvoltage tolerance provides robustness against electrical disturbances.

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 for tape and reel packaging requirements before procurement. Confirm that the component meets RoHS compliance standards for the intended manufacturing process. Check current availability status as this part may be subject to end-of-life notices.

Selection Notes

Select this component for applications requiring full-duplex communication with high noise immunity. Ensure the system design accommodates the ±25V common mode range and ±60V fault protection capabilities. Verify that the 10-lead MSOP package fits the available PCB space constraints.

Part Context

This device belongs to the ISL3149xE series of differential transceivers designed to exceed standard RS-485 and RS-422 specifications. It offers superior noise immunity through high differential output voltage and supports up to 128 devices on the bus due to its 1/4 unit load characteristic.

Replacement Considerations

Public confirmed substitute: ISL32496EIUZ-T (Renesas Electronics Corporation). This alternative provides parameter equivalence for the discontinued ISL31496EIUZ-T7A variant.

FAQ

What is the maximum common mode voltage range supported?

The ISL31496EIUZ supports an extended common mode voltage range of ±25V, which exceeds the standard RS-485 requirement.

How does the device handle hot plug conditions?

The transceiver includes hot plug circuitry that keeps the Tx and Rx outputs in a three-state condition during power-up and power-down sequences.

What is the fault protection rating for the bus pins?

The RS-485 bus pins, including driver outputs and receiver inputs, are protected against faults up to ±60V.