ISL88694IH5Z-TK

Signal Buffers, Repeaters, Splitters Overview

The ISL88694IH5Z-TK is a dual-channel SMBus Accelerator (SMA) interface integrated circuit manufactured by Renesas Electronics Corporation. Designed for signal buffering and re-driving, it operates within a supply voltage range of 2.7V to 5.5V while consuming 80µA of supply current. The device supports two-wire bus input and output interfaces, specifically tailored for I2C applications. It is housed in a compact SOT-23-5 (SC-74A/SOT-753) surface-mount package. The component is rated for an operating temperature range of -40°C to 85°C and complies with RoHS3 standards.

Signal Buffers, Repeaters, Splitters Feature Summary

• Provides signal acceleration and buffering for SMBus/I2C communication lines
• Supports dual-channel operation for simultaneous bus extension
• Enables connection between devices with differing voltage levels or high capacitive loads

Signal Buffers, Repeaters, Splitters Applications

• Industrial control systems requiring extended I2C bus distances
• Embedded systems needing signal integrity improvement on two-wire buses
• Consumer electronics utilizing SMBus interfaces for peripheral management

Signal Buffers, Repeaters, Splitters Procurement Notes

This component has reached End-of-Life (EOL) status as per Product Change Notification OBS-EOL dated January 13, 2023. While distributors may list remaining inventory, no new production is scheduled. Verification of the specific suffix '-TK' against the official datasheet is required, as ordering suffixes can indicate variations in tape-and-reel specifications or packaging details that do not alter electrical function but affect handling.

Signal Buffers, Repeaters, Splitters Selection Notes

Designers should verify compatibility with existing I2C clock frequencies and bus capacitance limits before implementation. Given the EOL status, alternative components from the same family or newer generations must be evaluated for pin-to-pin compatibility and electrical equivalence. Ensure the selected replacement maintains support for the required 2.7V to 5.5V supply range and SOT-23-5 footprint if space constraints are critical.

Signal Buffers, Repeaters, Splitters Part Context

The ISL88694 belongs to Renesas' SMBus Accelerator series, designed to overcome limitations of standard I2C buses regarding distance and load. This specific part number represents the tape-and-reel variant of the dual-channel accelerator. It complements other interface solutions like the ISL88739 battery charger by providing robust communication backbone capabilities in industrial and embedded environments.

Signal Buffers, Repeaters, Splitters Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Due to the EOL status, engineers must identify equivalent dual-channel SMBus accelerators from other manufacturers or newer Renesas families that offer compatible voltage ranges and package types.