557GI-05ALF

Overview

The Renesas Electronics 557GI-05ALF is a PCI Express clock source and spread-spectrum clock generator designed for embedded systems. It features four differential outputs supporting HCSL or LVDS signaling, with a maximum output frequency of 200 MHz and a maximum input frequency of 25 MHz. The device operates on a single 3.3 V supply with a typical current consumption of 105 mA. Packaged in a 20-TSSOP format, it provides an 80 ps jitter specification and functions within an industrial temperature range of -40°C to +85°C.

Feature Summary

• Four differential outputs configurable for HCSL or LVDS signaling
• Spread-spectrum capability to reduce electromagnetic interference (EMI)
• Maximum output frequency of 200 MHz with 80 ps jitter
• Industrial operating temperature range from -40°C to +85°C

Applications

• PCI Express Gen1 clock sources
• PC and embedded system designs requiring EMI reduction
• High-frequency clock distribution networks

Procurement Notes

Verify the specific suffix against official documentation to confirm package type and environmental compliance. Confirm RoHS status and moisture sensitivity level requirements prior to procurement. Ensure the ordering part number matches the exact pinout and electrical specifications required by the design.

Selection Notes

Select this component when four differential clock outputs are required for PCIe applications. Verify that the 20-TSSOP package fits the board layout constraints. Ensure the design supports the 3.3 V supply voltage and accommodates the 105 mA power consumption profile.

Part Context

This component belongs to the 557-05A series of clock generators. It serves as a specialized solution for generating precise clock signals for high-speed serial interfaces like PCI Express. The series focuses on providing low-jitter, spread-spectrum clocks to meet stringent EMI standards in computing hardware.

Replacement Considerations

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