49FCT20805PYGI

Overview

The 49FCT20805PYGI is a dual 1:5 clock driver and distribution buffer manufactured by Renesas Electronics. It operates within a supply voltage range of 2.3 V to 2.7 V and supports maximum output frequencies up to 166 MHz. The device features CMOS and LVTTL compatible inputs and outputs, housed in a 20-SSOP package with a width of 5.30 mm. Designed for surface mount installation, it functions across an operating temperature range of -40°C to +85°C. The component draws a typical operating current of 115 mA and is classified under the 49FCT series for clock and timer IC applications.

Feature Summary

• Dual 1:5 fanout clock distribution architecture
• Maximum operating frequency of 166 MHz
• CMOS/LVTTL input and output compatibility
• Operating temperature range from -40°C to +85°C

Applications

• High-speed clock distribution systems
• Digital signal processing equipment
• Telecommunications infrastructure

Procurement Notes

This component has reached End-of-Life (EOL) status, with discontinuance notifications dated May 30, 2025. Manufacturers will cease production, and existing inventory will not be replenished after depletion. Verification of remaining stock availability through authorized distributors is recommended before finalizing procurement plans.

Selection Notes

Designers should consider the 2.5 V supply voltage constraint when selecting this part. Verify that the load capacitance requirements are met within the 166 MHz operational limit. Due to the EOL status, alternative components such as the 5PB1106PGGI may be evaluated for future designs.

Part Context

The 49FCT20805PYGI belongs to the 49FCT family of high-speed FET transistor-transistor logic (FCT) devices. This series is engineered for low power dissipation and high-speed performance. The specific model provides dual independent drivers for precise clock skew management in complex digital circuits.

Replacement Considerations

Renesas recommends the 5PB1106PGGI as a manufacturer-recommended substitute. Engineers should verify pin compatibility and electrical specifications against the original datasheet before implementation.