49FCT3805BQGI8

Overview

The 49FCT3805BQGI8 is a dual 1-to-5 clock driver manufactured by Renesas Electronics. It operates on a single 3.3V supply and utilizes advanced dual metal CMOS technology. The device features two independent driver banks, each providing a 1:5 fanout with individual output enable controls. It includes a dedicated 'heartbeat' monitor output for diagnostics and PLL driving capabilities. Designed for high-speed clock distribution, it ensures low skew and high signal quality, supporting applications requiring precise timing and transmission line driving.

Feature Summary

• Dual 1:5 non-inverting clock drivers with independent output enables
• Integrated heartbeat monitor output for system diagnostics
• Low capacitance inputs with hysteresis for noise immunity
• Optimized for low skew and high-speed clock distribution

Applications

• High-speed clock distribution networks
• PLL driving circuits
• Address distribution systems
• Single point-to-point transmission line driving

Part Context

This component belongs to the FCT3805 family of clock drivers. It is functionally similar to variants such as the 49FCT3805BAPYGI8 and 49FCT3805BPYG, differing primarily in package type (QSOP-20) and suffix specifications. The part is designed for robust performance in demanding digital environments requiring precise clock synchronization.

Replacement Considerations

Verify pin compatibility when substituting with other FCT3805 variants. Ensure the replacement part supports the required 3.3V operating voltage and 1:5 fanout configuration. Check datasheet specifications for skew and drive strength if replacing with non-Renesas equivalents.