ISL33002IRT2Z-T

Signal Buffers, Repeaters, Splitters Overview

The ISL33002IRT2Z-T is a dual-channel I2C bus buffer manufactured by Renesas Electronics Corporation. 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 using integrated rise time accelerators, which reduce passive pull-up resistor power consumption. It features hot-swap capability to protect data and clock lines during insertion into live backplanes. The component provides ±6kV Class 3 HBM ESD protection on all pins and ±12kV HBM protection specifically on SDA/SCL pins. It includes logic level shifting for mixed-voltage applications and offers low static current (typical 2.1mA) and low shutdown current (typical 0.5μA).

Signal Buffers, Repeaters, Splitters Feature Summary

• Dual-channel bidirectional buffering with integrated rise time acceleration circuitry.
• Hot-swap protection prevents damage to data and clock lines during board insertion.
• Logic level translation supports mixed power voltage environments.
• High electrostatic discharge tolerance on signal and general-purpose pins.

Signal Buffers, Repeaters, Splitters Applications

• I2C bus expansion and capacitance buffering in sensor hubs.
• Server rack isolation for telecommunications and data communication systems.
• Hot-swappable circuit board insertion interfaces.

Signal Buffers, Repeaters, Splitters Procurement Notes

Verify the suffix 'T' indicates tape-and-reel packaging rather than tube configuration. Confirm RoHS compliance status and moisture sensitivity level requirements for surface-mount assembly processes. Ensure the specific lot date code aligns with project timelines to avoid obsolescence risks associated with legacy Intersil branding transitions.

Signal Buffers, Repeaters, Splitters Selection Notes

Select this part when system design requires extending I2C bus capacitance beyond standard limits while maintaining high-speed performance. The integrated rise time accelerator reduces power dissipation compared to traditional passive pull-ups. Verify that the operating temperature range of -40°C to +85°C meets environmental constraints for the target application.

Signal Buffers, Repeaters, Splitters Part Context

This component belongs to the ISL3300x family of I2C bus buffers, which also includes single-channel (ISL33001) and quad-channel (ISL33003) variants. The series is designed to address common limitations in standard I2C implementations, such as excessive bus capacitance and susceptibility to hot-swap events. Renesas acquired Intersil, under which this part was originally developed.

Signal Buffers, Repeaters, Splitters Replacement Considerations

Direct functional substitutes within the same package include ISL33001 for single-channel needs or ISL33003 for quad-channel requirements. Cross-reference pinouts and electrical specifications carefully before substituting with generic I2C buffers, as the integrated rise time accelerator and hot-swap circuits are unique to this family.