PI6ULS5V9617AWE

Signal Buffers, Repeaters, Splitters Overview

The PI6ULS5V9617AWE is a CMOS integrated circuit designed as a level translating Fast-Mode Plus I2C-bus/SMBus repeater. It provides bidirectional buffering for SDA and SCL lines, isolating capacitance to support up to 540pF at 1 MHz or 4000pF at lower speeds. The device translates voltage levels from Port A (0.6V to 5.5V) to Port B (2.2V to 5.5V). It features an active HIGH enable input referenced to VCC(B), open-drain outputs, and ESD protection exceeding 8000V HBM. Operating temperatures range from -40°C to +85°C.

Signal Buffers, Repeaters, Splitters Feature Summary

• Bidirectional buffering isolates bus capacitance across two voltage domains
• Voltage translation between low voltage (0.6V) and higher voltage (2.2V to 5.5V) buses
• Supports arbitration and clock stretching across the repeater
• Powered-off high-impedance state prevents leakage on unpowered buses

Signal Buffers, Repeaters, Splitters Applications

• Extending I2C-bus trace lengths in mixed-voltage systems
• Connecting multiple masters with different supply voltages
• Isolating badly behaved slaves during system power-up sequences

Signal Buffers, Repeaters, Splitters Procurement Notes

Verify the ordering suffix 'W' corresponds to the SOIC-8 package when sourcing this specific variant. Confirm RoHS compliance and lead-free status requirements against current project specifications. Ensure the supplier provides valid traceability documentation for automotive or industrial applications if required by the design lifecycle.

Signal Buffers, Repeaters, Splitters Selection Notes

Select this component when designing systems requiring translation between logic levels below 2.2V and standard 3.3V or 5V buses. Ensure the Port A supply voltage satisfies the condition 0.4VCC(A) + 0.8V ≤ VCC(B) for proper channel functionality. Consider the propagation delays and RC time constants when determining maximum bus speeds for series configurations.

Signal Buffers, Repeaters, Splitters Part Context

This part belongs to the PI6ULS5V96xx family of signal buffers and repeaters manufactured by Diodes Incorporated. It serves as a footprint and functional replacement for similar legacy parts at Fast-mode speeds. The device is specifically engineered for SMBus and I2C applications requiring robust isolation between voltage domains without degrading system performance.

Signal Buffers, Repeaters, Splitters Replacement Considerations

The datasheet identifies the base model PI6ULS5V9617A as a functional replacement at Fast-mode speeds. Verify pinout compatibility and electrical characteristics before substituting other generic I2C repeaters.