49FCT3805SOG8

Overview

The 49FCT3805SOG8 is a dual 1-to-5 clock driver manufactured by Renesas Electronics. It operates on a single 3V to 3.6V supply and accepts CMOS or LVTTL inputs, producing corresponding CMOS or LVTTL outputs. The device features two independent driver banks, each with its own output enable control. Designed for high-speed clock distribution, it ensures low skew and high signal quality. The component is housed in a 20-SOIC package (0.295" width) and supports surface-mount installation. Its operating temperature range extends from 0°C to 70°C.

Feature Summary

• Dual 1:5 fanout configuration with independent output enables
• CMOS/LVTTL compatible input and output logic levels
• Low capacitance inputs for high-speed performance
• Heartbeat monitor output for diagnostics and PLL driving

Applications

• High-speed clock distribution networks
• Address distribution systems requiring low skew
• Single point-to-point transmission line driving
• PLL driving applications

Procurement Notes

The 49FCT3805SOG8 is classified as obsolete and no longer manufactured. Verification of current availability requires checking distributor stock lists, as the part is not actively produced by Renesas. Designers should confirm end-of-life status through official discontinuance notifications before finalizing procurement plans.

Selection Notes

Select this component only if legacy compatibility with the 49FCT3805 series is required. Verify that the 0°C to 70°C commercial temperature range meets system requirements. Ensure the 20-SOIC footprint matches the PCB layout. Consider the obsolete status when planning long-term production runs.

Part Context

This part belongs to the 49FCT family of high-performance clock drivers. It shares functional similarities with other variants like the 49FCT3805ASOGI8 but differs in packaging and specific suffix designations. The SOG8 suffix indicates the 20-SOIC package type with tape-and-reel shipping options.

Replacement Considerations

Renesas recommends the 5PB1110PGGI8 as a manufacturer-approved replacement. This alternative offers similar clock buffering capabilities with updated manufacturing support.