49FCT3805EPYGI

Overview

The 49FCT3805EPYGI is a dual 1-to-5 clock driver manufactured by Renesas Electronics Corporation. It operates on a single 3V to 3.6V supply and features two independent driver banks, each providing five LVCMOS outputs with individual output enable controls. The device utilizes advanced CMOS technology for high-speed clock distribution, supporting maximum frequencies up to 166 MHz. It includes a heartbeat monitor output for diagnostics and PLL driving. The component is housed in a 20-SSOP package (0.209 inch width) and functions within an operating temperature range of -40°C to +85°C.

Feature Summary

• Dual 1:5 fanout architecture with independent output enable control per bank
• Maximum operating frequency of 166 MHz with low capacitance inputs
• Integrated heartbeat monitor output identical to standard outputs for diagnostics
• LVCMOS input/output compatibility with 3V to 3.6V single supply operation

Applications

• High-speed clock distribution networks requiring low skew
• Address bus distribution where one signal drives multiple receivers
• PLL driving applications utilizing the dedicated monitor output
• Single point-to-point transmission line driving systems

Procurement Notes

Verify RoHS compliance status and REACH registration details through official Renesas documentation before procurement. Confirm the specific suffix 'E' corresponds to the required tape-and-reel or tube packaging configuration as listed in the datasheet. Ensure the SSOP-20 footprint matches the target PCB design constraints. Check for any product discontinuance notifications or PCN updates regarding assembly source changes.

Selection Notes

Select this component when dual independent clock domains are required from a single source. The 1:5 fanout ratio suits applications needing moderate signal splitting without external buffering. Verify that the 166 MHz maximum frequency meets system timing requirements. The inclusion of a monitor output makes it suitable for diagnostic-heavy designs compared to standard buffers lacking this feature.

Part Context

This part belongs to the 49FCT series of fast CMOS clock drivers. It is functionally related to variants such as the 49FCT3805APYGI and 49FCT3805ASOGI8, differing primarily in package type (SSOP vs SOIC) and specific manufacturing suffixes. The EPYGI designation indicates the specific pin-compatible package and reel configuration offered by Renesas.

Replacement Considerations

Renesas recommends the 5PB1106PGGI as a manufacturer-recommended alternative. Verify pin compatibility and electrical specifications against the original datasheet before substitution. Other family members like the 49FCT3805B may offer similar functionality but require verification of package and speed grade differences.