ICS557GI-06T

Overview

The ICS557GI-06T is a two-to-four differential clock multiplexer designed for PCI Express applications. It selects one of two differential HCSL or LVDS input pairs and fans out to four pairs of differential outputs. The device operates at frequencies up to 200 MHz with cycle-to-cycle jitter of 60 ps and output-to-output skew of 50 ps. It functions within a supply voltage range of 3.135 V to 3.465 V and supports an industrial temperature range from -40°C to +85°C. Packaged in a 20-pin TSSOP, it includes internal pull-up resistors for control pins.

Feature Summary

• Two-to-four differential clock mux supporting HCSL and LVDS inputs/outputs
• Maximum operating frequency of 200 MHz with 60 ps cycle-to-cycle jitter
• Industrial temperature range (-40°C to +85°C) and 3.3 V supply operation
• Internal pull-up resistors on SEL, OE, and PD control pins

Applications

• PCI Express (PCIe) clock distribution systems
• Differential clock fan-out buffering
• Clock signal selection and routing in embedded systems

Procurement Notes

Verify the 'I' suffix confirms the industrial temperature grade (-40°C to +85°C). Confirm the 'T' suffix indicates tape and reel packaging. Ensure the component matches the Renesas Electronics Corporation manufacturer designation as IDT was acquired by Renesas.

Selection Notes

Select this component when a 2:4 differential clock mux is required for PCIe designs. Verify that the input source supports either HCSL or LVDS levels, as the device handles both. Check that the system power supply remains within the 3.135 V to 3.465 V range to meet electrical specifications.

Part Context

This part belongs to the ICS557G family of clock muxes. The 'I' denotes the industrial temperature variant, while 'LF' indicates lead-free compliance. The base model ICS557-06 provides the core 2-to-4 mux functionality used in high-speed serial interface clocking.

Replacement Considerations

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