PI6ULS5V9617AUEX

Signal Buffers, Repeaters, Splitters Overview

The PI6ULS5V9617AUEX is a CMOS integrated circuit designed for Fast-mode Plus (Fm+) I2C-bus or SMBus applications. It provides bidirectional level shifting between low voltage (0.6V to 5.5V) and higher voltage (2.2V to 5.5V). The device features two-channel buffering that isolates capacitance, allowing up to 540pF on either side at 1 MHz or up to 4000 pF at lower speeds. It supports Standard, Fast, and Fast-mode Plus I2C devices, SMBus, PMBus, and multiple masters. Key electrical parameters include VCC(A) of 0.6V to 5.5V, VCC(B) of 2.2V to 5.5V, and an active HIGH enable input referenced to VCC(B).

Signal Buffers, Repeaters, Splitters Feature Summary

• Provides bidirectional voltage level translation between low voltage (down to 0.6V) and higher voltage (2.2V to 5.5V) domains.
• Isolates bus capacitance to support extended trace lengths and increased device counts on I2C/SMBus networks.
• Features powered-off high-impedance pins and overvoltage tolerance for robust system integration.

Signal Buffers, Repeaters, Splitters Applications

• Level translating Fast-mode Plus I2C-bus systems
• SMBus applications requiring voltage domain isolation
• PMBus interfaces with mixed voltage logic

Signal Buffers, Repeaters, Splitters Procurement Notes

Verify the specific package suffix against the datasheet ordering information to ensure correct physical form factor. Confirm RoHS compliance status and lead-free specifications as required by project constraints. Cross-reference the document revision number to ensure alignment with current manufacturing standards.

Signal Buffers, Repeaters, Splitters Selection Notes

Select this component when designing systems requiring translation between 0.6V and 5.5V logic levels. Ensure the application utilizes open-drain configurations with appropriate pull-up resistors. Verify that the bus speed requirements do not exceed the repeater's propagation delay limitations.

Signal Buffers, Repeaters, Splitters Part Context

This part belongs to the PI6ULS5 family of signal buffers and repeaters manufactured by Diodes Incorporated. It serves as a functional replacement for legacy parts in Fast-mode speed applications. The device is specifically engineered to handle mixed-voltage environments common in modern embedded systems.

Signal Buffers, Repeaters, Splitters Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.

Signal Buffers, Repeaters, Splitters FAQ

How does the device handle unpowered states?

The SDA and SCL pins remain high-impedance when the PI6ULS5V9617A is unpowered, preventing interference with other bus segments.

What is the function of the EN pin?

The EN pin is an active HIGH repeater enable input referenced to VCC(B), used to turn the drivers on or off under system control.