PI6CB18401ZHIEX-13R

Clock Buffers, Drivers Overview

The PI6CB18401ZHIEX-13R is a very low power 4-output PCIe clock buffer manufactured by Diodes Incorporated. It operates on a 1.8V supply voltage and features HCSL input and output interfaces. The device supports a maximum input frequency of 200 MHz in PLL bypass mode, while the standard operating frequency is 100 MHz. It provides four differential low-power HCSL outputs with integrated on-chip termination. Key electrical parameters include a maximum propagation delay of 4.5 ns and a typical power supply current of 10 mA at 100 MHz operation.

Clock Buffers, Drivers Feature Summary

• Four differential low-power HCSL outputs with built-in on-chip termination to reduce external component count.
• Supports 100MHz default operation, with programmable 50MHz or 125MHz frequencies via SMBus.
• Individual output enable pins (OE#) for granular power management control.
• Configurable slew rate and output amplitude settings accessible through strapping pins or SMBus interface.

Clock Buffers, Drivers Applications

• PCIe Gen1/Gen2/Gen3/Gen4 compliant clock distribution systems.
• Ethernet applications requiring 50MHz or 125MHz clock references.
• High-speed digital boards requiring low jitter clock buffering.

Clock Buffers, Drivers Procurement Notes

Verify that the specific ordering suffix '-13R' corresponds to the TQFN package with Pin 1 located at the top left corner, as distinct from the standard 'ZHIE' variant which places Pin 1 at the top right. Confirm RoHS compliance and lead-free status requirements match project specifications before finalizing procurement orders.

Clock Buffers, Drivers Selection Notes

Select this component when a 4-output fanout buffer with integrated termination is required for 1.8V logic domains. Ensure the design accommodates the 32-lead TQFN package dimensions. Verify that the SMBus interface compatibility aligns with the system controller's capabilities for configuring frequency and slew rates.

Clock Buffers, Drivers Part Context

This part belongs to the PI6CB18401 series of PCIe clock buffers. The ZHIE designation indicates a 32-contact Very Thin Quad Flat No-Lead (TQFN) package. The -13R suffix specifically denotes the tape and reel packaging format with a unique pin 1 marking orientation compared to other variants in the same family.

Clock Buffers, Drivers Replacement Considerations

Direct replacements within the same family include the PI6CB18401ZHIEX. Note that the pin 1 location differs between the -13R and standard versions; verify footprint compatibility if substituting. Other PI6CB series devices may offer different output counts or voltage levels.