ISL33001IRTZ-T

Signal Buffers, Repeaters, Splitters Overview

The ISL33001IRTZ-T is a single-channel I2C bus buffer manufactured by Renesas Electronics. It operates within a supply voltage range of +2.3V to +5.5V and supports data rates exceeding 400kHz. The device extends bus capacitance beyond the standard 400pF limit and includes rise time acceleration to improve performance on passive pull-up networks. It features hot-swap capability to protect against damage during insertion into live backplanes and provides logic level translation for mixed-voltage applications. The component offers ±6kV Class 3 HBM ESD protection on all pins, with ±12kV HBM protection specifically on SDA and SCL lines. It functions reliably across an operating temperature range of -40°C to +85°C.

Signal Buffers, Repeaters, Splitters Feature Summary

• Integrated rise time accelerator circuit reduces power consumption in passive pull-up resistors while enhancing data rate capabilities.
• Built-in hot-swap protection prevents electrical damage to data and clock lines when connecting devices to energized backplanes.
• Provides bidirectional buffering and logic level translation to support mixed power supply environments.

Signal Buffers, Repeaters, Splitters Applications

• I2C bus expansion and capacitance buffering
• Server rack isolation in telecommunications and data communication systems
• Hot-swap circuit board insertion and bus isolation

Signal Buffers, Repeaters, Splitters Procurement Notes

Verify the suffix 'T' indicates tape-and-reel packaging configuration distinct from tube variants. Confirm RoHS compliance status and moisture sensitivity level prior to assembly planning. Ensure the specific lot date code aligns with current manufacturing standards. Cross-reference the exact part number with official Renesas documentation to validate pinout and functional specifications before integration.

Signal Buffers, Repeaters, Splitters Selection Notes

Select this component when a single-channel I2C buffer is required for extending bus capacitance or isolating segments. It is suitable for applications demanding hot-swap functionality and protection against electrostatic discharge. Consider the TDFN-EP-8 package constraints and thermal requirements. Verify that the voltage levels match the system's mixed-power domain needs without requiring external level shifters.

Signal Buffers, Repeaters, Splitters Part Context

This part belongs to the ISL3300x series of I2C bus buffers, which also includes dual-channel (ISL33002) and triple-channel (ISL33003) variants. The series is designed to address limitations in standard I2C specifications regarding capacitance and signal integrity. Renesas acquired Intersil, under which this product line was originally developed, integrating it into their broader interface IC portfolio.

Signal Buffers, Repeaters, Splitters Replacement Considerations

Direct substitutes include ISL33002IRTZ-T for dual-channel requirements and ISL33003IRTZ-T for triple-channel needs. Verify pin compatibility and functional equivalence with other I2C buffers from different manufacturers if cross-sourcing is necessary. Ensure any replacement maintains the same hot-swap and ESD protection characteristics.