ISL32458EIBZ-T

Overview

The ISL32458EIBZ-T is a half-duplex RS-485/RS-422 transceiver manufactured by Renesas Electronics Corporation. It operates within a supply voltage range of 3 V to 5.5 V and supports data rates up to 20 Mb/s. The device features ±60 V overvoltage protection (OVP) on the bus pins and provides a common-mode range of ±20 V. It is housed in an 8-SOIC package with surface-mount installation. The component functions across an operating temperature range of -40°C to +85°C and includes a shutdown mode for power reduction.

Feature Summary

• Provides ±60 V fault protection on differential bus lines to safeguard against electrical overstress
• Supports extended common-mode voltage range of ±20 V for reliable communication in noisy environments
• Integrates a low-power shutdown mode to minimize current consumption during idle periods

Applications

• Industrial automation control systems requiring robust serial communication
• Building automation networks utilizing RS-485 bus topology
• Metering equipment needing high common-mode noise immunity
• Process control instrumentation operating in electrically harsh environments

Procurement Notes

Verify the specific suffix 'T7A' indicates tape-and-reel packaging when sourcing. Confirm RoHS compliance status through official manufacturer documentation, as environmental declarations may vary by production batch. Ensure the procurement channel sources directly from authorized distributors to guarantee authenticity and traceability of the Renesas Electronics Corporation product.

Selection Notes

Select this component for applications requiring high-speed data transmission up to 20 Mb/s alongside significant overvoltage tolerance. It is suitable where standard RS-485 interfaces lack sufficient protection against transient voltages. Consider the 8-SOIC footprint for PCB layout constraints. Compare against other family members like the ISL32455 if lower data rates or full-duplex operation are required instead.

Part Context

This part belongs to the ISL3245xE series of fault-protected transceivers designed for balanced communication buses. The series emphasizes durability in industrial settings by combining standard RS-485/RS-422 functionality with enhanced electrical protection features. It complements other interface solutions from Renesas that focus on reliability and extended operational ranges.

Replacement Considerations

The ISL32458EIBZ is a non-solderable leaded alternative to the ISL32458EIBZ-T variant. For direct functional substitution within the same package and specification profile, verify cross-reference lists provided by Renesas for equivalent devices such as the ISL32459EIBZ-T7A.