PI6C20400SHEX

Overview

The PI6C20400SHEX is a clock buffer manufactured by Diodes Incorporated, designed for PCI Express applications. It features a 1:4 input-to-output ratio with differential inputs and outputs. The device supports a maximum frequency of 100 MHz and operates on a supply voltage range of 3.135 V to 3.465 V. It includes an integrated PLL and accepts LVTTL input signals. The component is housed in a 28-SSOP package (0.209 inch width) and is rated for an operating temperature range of 0°C to 70°C.

Feature Summary

• 1:4 Clock Buffer with Differential Input/Output
• Integrated PLL for PCIe Applications
• LVTTL Input Interface
• 28-SSOP Surface Mount Package

Applications

• PCI Express Clock Distribution
• System Clock Buffering
• High-Speed Digital Circuit Timing

Procurement Notes

Verify the specific ordering suffix 'SHEX' against the manufacturer's official documentation to confirm pinout compatibility and electrical characteristics. Ensure the selected variant matches the required 0°C to 70°C industrial temperature grade and 28-SSOP package dimensions for proper PCB integration.

Selection Notes

Select this component when a 1:4 buffered clock signal with differential output is required for PCIe systems. Confirm that the LVTTL input logic level is compatible with the source driver. Verify that the 100 MHz maximum frequency meets the system timing requirements and that the 3.135 V to 3.465 V supply voltage aligns with the board power design.

Part Context

This part belongs to the Diodes Incorporated application-specific clock and timing family. It serves as a dedicated buffer for distributing reference clocks in high-speed interface standards, specifically targeting PCI Express architectures where low jitter and precise timing distribution are critical.

Replacement Considerations

Check for direct replacements within the PI6C20400 series or other 1:4 differential PCIe buffers from Diodes Incorporated. Ensure any substitute maintains the same 28-SSOP footprint, voltage range, and functional specifications.