841S104EGILFT

Overview

The Renesas 841S104EGILFT is a PLL-based clock synthesizer designed for PCI Express applications. It generates a 100MHz differential HCSL output from a 25MHz reference input, which can be derived from an external source or an on-chip crystal oscillator. The device features spread spectrum clocking to reduce EMI, configurable via an I2C interface. It operates within a supply voltage range of 3.135V to 3.465V and supports an operating temperature range of -40°C to +85°C.

Feature Summary

• Generates 100MHz differential HCSL clock from 25MHz reference
• Integrated I2C interface for spread spectrum configuration
• Supports down-spread values of -0.35% or -0.5%
• Available in lead-free 24-lead TSSOP package

Applications

• PCI Express clock generation
• EMI reduction in high-speed digital systems

Procurement Notes

Verify the suffix 'T' indicates tape-and-reel packaging versus the tube variant. Confirm RoHS compliance status through official manufacturer documentation. Ensure the specific revision matches design requirements before procurement.

Selection Notes

Select this component when a 100MHz differential HCSL output is required for PCIe interfaces. Verify that the 25MHz input frequency aligns with the system reference. Check if I2C configurability for spread spectrum is necessary for EMI compliance.

Part Context

This part belongs to the FemtoClock family of clock synthesizers. It is functionally related to other models like the 841S102 and 841S101, differing primarily in pin count and specific output configurations tailored for different interface standards.

Replacement Considerations

Direct substitutes include the 841S102EGILF for similar functionality in a 20-TSSOP package. Verify pin compatibility and electrical specifications before substitution.