ISL32274EIBZ-T

Overview

The ISL32274EIBZ-T is a quad line driver manufactured by Renesas Electronics Corporation, designed for RS-422 and RS-485 communication applications. It features four independent drivers with no receivers, operating within a supply voltage range of 3 V to 5.5 V. The component supports data rates up to 10 Mb/s and includes enhanced ESD protection rated at ±15 kV. It operates reliably across an extended temperature range from -40°C to +125°C. Packaged in a 16-lead SOIC surface-mount format, the device draws a typical quiescent current of 800 µA, ensuring efficient power consumption for industrial interface circuits.

Feature Summary

• Provides four independent differential line drivers for robust serial communication
• Features high electrostatic discharge protection for reliable operation in harsh environments
• Supports standard RS-422 and RS-485 protocol requirements
• Operates efficiently with low quiescent current consumption

Applications

• Industrial automation control systems
• Factory floor sensor networks
• Building automation interfaces
• Process control instrumentation

Procurement Notes

This component is officially classified as obsolete and is no longer manufactured by Renesas Electronics. Availability is restricted to existing stock or third-party distributors. Verification of authenticity is critical due to the discontinued status. Buyers should confirm the specific package variant and revision level against original design specifications before procurement. Cross-reference official substitute part numbers provided by the manufacturer to ensure functional compatibility and long-term supply stability for production needs.

Selection Notes

Select this component when designing systems requiring four-channel RS-422/RS-485 transmission with high ESD immunity. It is suitable for applications needing operation up to 10 Mb/s within a 3 V to 5.5 V supply range. Consider the extended temperature rating for industrial environments. Due to its obsolete status, evaluate alternative quad drivers with similar electrical characteristics and pinout compatibility for new designs to ensure future availability.

Part Context

The ISL32274EIBZ-T belongs to the ISL3227xE series of interface ICs from Renesas (formerly Intersil). This series focuses on providing reliable multi-drop communication capabilities for industrial standards. The 'T' suffix indicates tape and reel packaging, distinct from the tube-packaged variants like the ISL32274EFBZ. It complements receiver-only or transceiver models within the same family to complete full-duplex or half-duplex communication links.

Replacement Considerations

Official substitutes include the ISL32275EIBZ-T, which offers higher speed capabilities. Designers should verify pin compatibility and electrical parameter alignment when transitioning to equivalent parts from other manufacturers to maintain system integrity.