49FCT3805QG8

Overview

The 49FCT3805QG8 is a dual 1-to-5 clock driver manufactured by Renesas Electronics. It operates on a single 3V to 3.6V supply and utilizes advanced CMOS technology for high-speed clock distribution. The device features two independent driver banks, each providing a 1:5 fanout with individual output enable controls. Designed for applications requiring low skew and high signal quality, it includes low capacitance inputs and supports transmission line driving. The component is housed in a 20-pin QSOP package.

Feature Summary

• Dual 1-to-5 clock driver configuration with independent output enables
• Low input capacitance for high-speed performance
• Single 3V to 3.6V power supply operation
• QSOP-20 surface mount package

Applications

• High-speed clock distribution networks
• Address distribution systems
• PLL driving circuits

Procurement Notes

Verify the specific suffix 'G8' against the official datasheet to confirm RoHS compliance status and lead time requirements. Confirm the package type matches the QSOP-20 specification. Check for any recent Product Change Notices (PCN) regarding manufacturing site or material changes before finalizing procurement orders.

Selection Notes

Select this component when a dual-channel clock buffer with 1:5 fanout is required within a 3.3V logic family. Ensure the design environment supports the 20-QSOP footprint. Verify that the operating temperature range meets system requirements, as industrial variants may carry different suffixes.

Part Context

This part belongs to the 49FCT series of fast CMOS clock drivers. It serves as a successor or variant to earlier FCT logic families, offering improved speed and lower power consumption while maintaining compatibility with standard 3.3V CMOS and LVTTL interfaces.

Replacement Considerations

Direct pin-compatible replacements include other 49FCT3805 variants with different packages, such as 49FCT3805PYG8 (SSOP) or 49FCT3805ASOGI8 (SOIC). Cross-referencing with IDT-branded equivalents like IDT49FCT3805 is possible due to historical brand integration.