ISL33001IBZ-T

Signal Buffers, Repeaters, Splitters Overview

The ISL33001IBZ-T is a single-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 rise time accelerators and includes hot-swap protection for safe insertion into live backplanes. It provides ±6kV Class 3 HBM ESD protection on all pins, with ±12kV HBM protection specifically on SDA/SCL lines. The component functions across an industrial temperature range from -40°C to +85°C and is housed in an 8-lead SOIC package.

Signal Buffers, Repeaters, Splitters Feature Summary

• Integrated rise time accelerator circuitry reduces passive pull-up resistor power consumption while enhancing data rate performance.
• Built-in hot-swap capability prevents damage to data and clock lines during the insertion of I2C devices into energized systems.
• Provides logic level shifting functionality suitable for mixed power voltage applications.

Signal Buffers, Repeaters, Splitters Applications

• I2C bus expansion and capacitance buffering
• Server rack isolation in telecommunications and data communication equipment
• Desktop computer peripheral interfaces

Signal Buffers, Repeaters, Splitters Procurement Notes

Verify the specific suffix IBZ against official Renesas documentation to confirm the SOIC-8 package type and industrial temperature grade. Confirm RoHS compliance status through the manufacturer's current datasheet or certification documents. Ensure the ordering quantity matches distributor reel specifications rather than assuming fixed minimums based on general industry practices.

Signal Buffers, Repeaters, Splitters Selection Notes

Select this component when a single-channel I2C buffer is required for systems operating between 2.3V and 5.5V. It is appropriate for designs needing extended bus capacitance handling and hot-swap protection. Verify that the SOIC-8 footprint aligns with the PCB layout constraints and that the -40°C to +85°C temperature range meets the environmental requirements of the target application.

Signal Buffers, Repeaters, Splitters Part Context

This part belongs to the ISL3300x series of I2C bus buffers, which also includes dual-channel variants like the ISL33002. These devices are designed to overcome limitations of standard I2C buses regarding capacitance and speed. The series supports various interface protocols and is commonly used in embedded systems requiring robust signal integrity and protection against electrical transients during module insertion.

Signal Buffers, Repeaters, Splitters Replacement Considerations

Direct functional substitutes include other single-channel I2C buffers with similar voltage ranges and packages. Cross-reference pinouts and electrical characteristics carefully. No specific public substitute part numbers are confirmed in the provided source material.