49FCT805ASOG8

Overview

The 49FCT805ASOG8 is a dual clock driver and buffer manufactured by Renesas Electronics Corporation, belonging to the 49FCT family. It features two independent 1:5 fanout buffers with TTL-compatible inputs and CMOS outputs. The device operates within a supply voltage range of 4.75V to 5.25V and supports maximum output frequencies up to 166 MHz. Packaged in a 20-SOIC (0.295", 7.50mm wide) surface-mount format, it is designed for high-speed clock distribution applications requiring low skew and signal integrity.

Feature Summary

• Dual 1:5 fanout architecture with independent control
• TTL input compatibility with CMOS output levels
• Maximum operating frequency of 166 MHz
• Available in 20-SOIC surface-mount package

Applications

• High-speed clock distribution networks
• Address bus buffering in computer systems
• Data communication equipment timing circuits
• Industrial control system synchronization

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for End-of-Life (EOL) notifications or Product Change Notices (PCN). Ensure storage conditions meet moisture sensitivity level requirements prior to assembly.

Selection Notes

Select this component when dual-channel 1:5 clock splitting with TTL input thresholds is required. Verify that the 20-SOIC footprint matches the PCB layout. Confirm that the 5V supply voltage aligns with the system power rails and that the 166 MHz speed meets the timing specifications of the destination logic.

Part Context

This part belongs to the 49FCT series of Fast CMOS clock drivers. Similar variants include the 49FCT805SOG (tube packaging) and 49FCT805CTSOG (TTL outputs). The 'A' suffix typically denotes an extended temperature range or specific manufacturing lot, while 'G8' indicates tape-and-reel packaging.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Evaluate pin-compatible alternatives from the same 49FCT family or consult manufacturer documentation for recommended cross-reference devices.