49FCT3805EPYGI8

Overview

The 49FCT3805EPYGI8 is a dual 1-to-5 clock driver and buffer manufactured by Renesas Electronics. It operates on a single 3V to 3.6V supply voltage and supports maximum frequencies up to 166 MHz. The device features LVCMOS/LVTTL compatible inputs and outputs, housed in a 20-pin SSOP package with a width of 5.30mm. Designed for high-speed clock distribution, it includes two independent driver banks, each with dedicated output enable controls. The component functions within an operating temperature range of -40°C to +85°C.

Feature Summary

• Dual 1:5 fanout configuration with independent output enable controls per bank
• Maximum operating frequency of 166 MHz
• Low capacitance inputs designed for critical signal quality and skew applications
• Integrated heartbeat monitor output (MON) for diagnostics and PLL driving

Applications

• High-speed clock distribution systems requiring low skew
• Address distribution where one signal must drive multiple receivers
• Single point-to-point transmission line driving
• PLL driving applications utilizing the MON output

Procurement Notes

Verify current availability status as this part number may be subject to discontinuation notices. Confirm that the EP suffix corresponds to the extended temperature grade (-40°C to +85°C) and the PYGI8 suffix indicates the specific 20-SSOP tape-and-reel packaging variant. Cross-reference datasheet revisions to ensure compatibility with existing design specifications.

Selection Notes

Select this component when a dual-channel 1:5 clock buffer is required for 3.3V logic systems. Ensure the application demands frequencies up to 166 MHz and benefits from the integrated diagnostic heartbeat monitor. Verify that the 20-SSOP footprint fits the PCB layout constraints and that LVCMOS/LVTTL input/output levels match the system voltage requirements.

Part Context

This device belongs to the 49FCT series of high-performance clock drivers. It shares functional similarities with other variants like the 49FCT3805APYGI8 but differs in package type and potentially speed grades. The EP designation typically denotes extended industrial temperature ranges compared to commercial grade parts.

Replacement Considerations

The 5PB1106PGGI is listed as a manufacturer-recommended alternative. Verify pinout compatibility and electrical specifications before substitution. Other family members such as the 49FCT3805ASOGI8 offer different packages but may have different thermal or performance characteristics.