49FCT20805QGI

Overview

The 49FCT20805QGI is a dual 1:5 clock driver manufactured by Renesas Electronics. It operates on a single 2.5V supply voltage, with a specified range of 2.3V to 2.7V. The device supports maximum output frequencies up to 166 MHz and features CMOS or LVTTL compatible outputs. Packaged in a 20-lead QSOP (QSOP-20) surface-mount format, it functions as a fan-out buffer for clock distribution. The component is rated for an industrial operating temperature range from -40°C to +85°C.

Feature Summary

• Dual independent 1:5 clock driver configuration
• Optimized for 2.5V operation (2.3V to 2.7V range)
• High-speed performance with 166 MHz maximum frequency
• CMOS/LVTTL output compatibility

Applications

• Clock distribution networks requiring low skew
• System board clock buffering
• High-speed digital signal routing

Procurement Notes

Verify the specific suffix 'QGI' against official datasheets to confirm the QSOP-20 package type and commercial/industrial temperature rating. Confirm RoHS compliance status through current manufacturer documentation before procurement. Check for End-of-Life (EOL) notices or Product Change Notices (PCN) that may affect availability or specifications.

Selection Notes

Select this component when a dual 1:5 fanout buffer is required for 2.5V logic systems. Ensure the application demands the specific 20-lead QSOP footprint. Compare against the 49FCT20805PYGI if a SSOP-20 package is acceptable instead. Verify input/output voltage levels match the system's CMOS or LVTTL requirements.

Part Context

This part belongs to the 49FCT family of high-speed FET transistor-transistor logic (FCT) devices. It serves as a clock buffer within Renesas's portfolio of timing components. The QGI suffix specifically denotes the 20-lead Quad Small Outline Package (QSOP) variant, distinguishing it from other package options like SSOP or SOIC found in the same functional family.

Replacement Considerations

The 49FCT20805PYGI is a functionally equivalent alternative offering the same electrical specifications but utilizes a 20-SSOP package instead of QSOP. Verify pin-to-pin compatibility and physical footprint constraints before substitution.