PI6C557-01BZHIEX

Overview

The PI6C557-01BZHIEX is a spread spectrum clock generator compliant with PCI Express 3.0 and Ethernet standards, manufactured by Diodes Incorporated. It accepts a 25 MHz crystal or clock input and generates a single pair of differential HCSL outputs at 100 MHz. The device operates on a 3.0 V to 3.6 V supply and supports -0.5% down-spread or no spread modes via the SS1 pin. Key electrical parameters include a typical operating current of 95 mA, cycle-to-cycle jitter of 35 ps, and high-frequency RMS jitter of 0.45 ps. It is housed in a 16-pin TQFN package.

Feature Summary

• PCIe 3.0 compliant spread spectrum clock generation
• Single differential HCSL output at 100 MHz from 25 MHz input
• -0.5% spread selection via external SS1 pin
• Low phase jitter: 0.45 ps RMS (High Freq.)

Applications

• PCI Express 3.0 systems
• Ethernet applications
• PC and embedded systems requiring EMI reduction

Procurement Notes

Verify the ordering suffix 'ZHIE' corresponds to the 16-pin TQFN package, Pb-free/Green status, and industrial temperature range (-40°C to +85°C). Confirm tape and reel packaging requirements if applicable. Ensure compatibility with 3.3V ±10% supply voltage and 25MHz crystal input specifications during procurement validation.

Selection Notes

Select this component for designs requiring PCIe 3.0 clock generation with spread spectrum capabilities. Ensure the design accommodates a 25 MHz fundamental mode parallel resonant crystal with less than 300 PPM error. Verify that the layout supports the required 50Ω non-coupled traces and 100Ω differential routing for HCSL outputs.

Part Context

This part belongs to the PI6C557 series of clock generators designed for high-speed interface compliance. The 'ZHIE' suffix indicates the specific package type (TQFN), environmental compliance (Pb-free/Green), and operating grade (Industrial). It serves as a specialized timing solution within Diodes Incorporated's portfolio for reducing electromagnetic interference in digital systems.

Replacement Considerations

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