49FCT3805SOGI8

Overview

The 49FCT3805ASOGI8 is a dual 1-to-5 clock driver manufactured by Renesas Electronics. It operates on a single 3V to 3.6V supply and features two independent driver banks, each with its own output enable control. The device utilizes advanced CMOS technology for low capacitance inputs and high-speed clock distribution. It includes a 'heartbeat' monitor output identical to standard outputs for diagnostics and PLL driving. The component is housed in a 20-SOIC package (0.295" width) and supports surface-mount installation.

Feature Summary

• Dual 1:5 fanout configuration with independent output enables
• Heartbeat monitor output for system diagnostics
• Low input capacitance for high-speed signal integrity
• CMOS/LVTTL compatible input and output levels

Applications

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

Procurement Notes

This part number is officially discontinued and no longer in production. Verification of availability should focus on the recommended replacement, 5PB1110PGGI8. Sourcing from existing stock or third-party distributors carries risks regarding authenticity and shelf life. Designers must confirm that the substitute component meets all original electrical and mechanical specifications before procurement.

Selection Notes

Select this component only if legacy compatibility is required. For new designs, use the manufacturer-recommended replacement, 5PB1110PGGI8. Ensure the application requires a 3.3V supply and 20-SOIC footprint. Verify that the heartbeat monitor feature is necessary for the specific diagnostic requirements of the target system.

Part Context

The 49FCT3805 series belongs to the FCT family of fast CMOS clock drivers. This specific variant, identified by the SOGI8 suffix, denotes the 20-SOIC package and industrial temperature range (-40°C to 85°C). It was originally produced under IDT branding before the acquisition by Renesas Electronics.

Replacement Considerations

Renesas recommends the 5PB1110PGGI8 as the direct replacement. This substitute maintains similar functionality but may require verification of pinout compatibility and electrical parameter alignment with the original design constraints.