PI6ULS5V9617CZWEX

Overview

The PI6ULS5V9617CZWEX is a CMOS integrated circuit designed for Fast-Mode Plus (Fm+) I2C-bus or SMBus applications. It provides bidirectional level translation between lower voltages (0.6V to 5.5V) and higher voltages (2.2V to 5.5V). The device isolates two halves of a bus for both voltage and capacitance, accommodating up to 540 pF at 1 MHz or 4000 pF at lower speeds. Port A operates from 0.6V to 5.5V with normal levels, while Port B operates from 2.2V to 5.5V with static offset levels. It features an active HIGH enable input referenced to VCC(B), open-drain inputs/outputs, and overvoltage-tolerant pins. The component supports arbitration and clock stretching across the repeater.

Feature Summary

• Bidirectional buffering isolates capacitance and enables voltage translation down to 0.6V without performance degradation.
• Supports Standard-mode, Fast-mode, and Fast-mode Plus I2C-bus devices, as well as SMBus and PMBus protocols.
• Features powered-off high-impedance I2C-bus pins and ESD protection exceeding 6000V HBM.

Applications

• Level shifting between mixed-mode I2C buses operating at different voltage levels
• Extending I2C bus length by buffering data and clock lines
• Isolating bus capacitance in systems with multiple masters

Procurement Notes

Verify the specific ordering suffix 'ZWEX' corresponds to the 8-pin UDFN package and tape/reel configuration before procurement. Confirm that the application environment meets the specified temperature range and voltage requirements. Ensure proper handling procedures are followed due to the small form factor. Check for any recent discontinuation notices or lifecycle changes directly from the manufacturer.

Selection Notes

Select this component when designing systems requiring translation between low-voltage logic (down to 0.6V) and standard 2.2V to 5.5V I2C buses. It is suitable for applications needing to isolate bus capacitance or extend trace lengths. Consider the 8-pin UDFN package constraints for PCB layout. Verify that the system's pull-up resistor values align with the required drive strength for the target bus speed.

Part Context

This part belongs to the PI6ULS5V9617 family of level translating repeaters manufactured by Diodes Incorporated. It serves as a functional replacement for previous iterations like the PI6ULS5V9617C at Fast-mode speeds. The device is part of Diodes' interface IC portfolio, focusing on signal buffering and protocol translation for serial communication buses.

Replacement Considerations

The datasheet identifies the PI6ULS5V9617C as a footprint and functional replacement for the PI6ULS5V9617 at Fast-mode speeds. Verify pin compatibility and electrical characteristics when substituting other models within the same family.