PI6C557-06LIEX

Overview

The PI6C557-06LIEX is a single-circuit clock generator manufactured by Diodes Incorporated, designed primarily for PCI Express applications. It features HCSL input and output interfaces with a differential signal configuration. The device supports an input-to-output frequency ratio of 2:4, generating a maximum output frequency of 200 MHz from a lower input reference. It operates within a supply voltage range of 3.135 V to 3.465 V and functions reliably across an industrial temperature range of -40°C to +85°C. The component is housed in a 20-TSSOP surface-mount package.

Feature Summary

• PCI Express compliant clock generation with HCSL I/O
• Single circuit supporting 2:4 input-to-output frequency multiplication
• Maximum output frequency of 200 MHz
• Differential input and output signal paths

Applications

• PCI Express system clock generation
• High-speed digital interface timing
• Server and storage backplane designs

Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm packaging details such as reel or cut tape quantities. Confirm that the 20-TSSOP package dimensions align with PCB footprint requirements. Ensure the supply voltage provided matches the specified 3.135 V to 3.465 V range for proper operation.

Selection Notes

Select this component when a single-channel PCIe clock generator with HCSL outputs is required. The 2:4 multiplication ratio suits applications needing a 200 MHz output from a 50 MHz input source. Verify thermal management capabilities for the TSSOP package if operating near the upper temperature limit of 85°C.

Part Context

This part belongs to the PI6C557 series of clock generators optimized for PCI Express standards. The series typically includes variants with different output counts and packages. The LIEX suffix indicates specific manufacturing and packaging configurations distinct from other suffixes in the same functional family.

Replacement Considerations

Check Diodes Incorporated datasheets for pin-compatible alternatives within the PI6C557 series that match the required output count and package type. Verify electrical parameters such as jitter and duty cycle against the original design specifications before substitution.