49FCT805APYGI

Overview

The 49FCT805APYGI is a dual clock driver and buffer manufactured by Renesas Electronics, belonging to the 49FCT family. It utilizes advanced CMOS technology to provide two independent banks of drivers, each offering a 1:5 fanout ratio from a single input to five outputs. The device features TTL-compatible inputs and rail-to-rail CMOS outputs, ensuring high drive capability with -24mA source and +64mA sink currents. Designed for high-speed applications, it guarantees low skew of less than 700ps and low duty cycle distortion under 1ns. The component operates within a standard voltage range and includes output enable controls for each bank.

Feature Summary

• Dual independent output banks with 1:5 fanout per bank
• TTL-compatible inputs with rail-to-rail CMOS outputs
• High drive strength: -24mA IOH and +64mA IOL
• Low skew (< 700ps max) and low duty cycle distortion (< 1ns max)
• Includes 'heartbeat' monitor output for diagnostics

Applications

• High-speed clock distribution networks
• PLL driving circuits requiring diagnostic monitoring
• Address distribution in systems requiring low skew
• Point-to-point transmission line driving

Part Context

The 49FCT805APYGI is part of the broader 49FCT series of fast CMOS buffers and clock drivers. This series is characterized by its ability to interface between TTL logic levels and CMOS loads while maintaining signal integrity at high frequencies. The specific APYGI suffix denotes the SSOP-20 package variant. Related parts in the family include variants with different packaging or output types, such as the 49FCT805CTSOG (SOIC package) and 49FCT805A (CMOS outputs).

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should verify pin compatibility and electrical specifications when considering alternative components from the same manufacturer or other vendors.