49FCT805BTQG8

Overview

The 49FCT805BTQG8 is a dual clock driver and buffer manufactured by Renesas Electronics Corporation, belonging to the 49FCT family. It features a 1:5 fanout ratio for each of its two independent banks, providing five outputs per input. The device supports CMOS and LVTTL output types with a maximum operating frequency of 166 MHz. It operates on a single 5V supply (4.5V to 5.5V) within an industrial temperature range of -40°C to +85°C. The component is housed in a 20-lead QSOP package and is designed for high-speed clock distribution applications requiring low skew.

Feature Summary

• Dual 1:5 fanout configuration with independent output enable controls
• Supports CMOS and LVTTL output logic levels
• Maximum operating frequency of 166 MHz
• Industrial temperature range (-40°C to +85°C)
• 20-lead QSOP surface-mount package

Applications

• High-speed clock distribution networks
• Address bus buffering in computer systems
• Data bus drivers requiring low skew
• Point-to-point transmission line driving

Procurement Notes

Verify end-of-life status and obsolescence notices prior to procurement. Check for available replacement components such as the 8L30210NLGI8 if the original part is discontinued. Confirm RoHS compliance and moisture sensitivity level requirements for the specific manufacturing process.

Selection Notes

Select this component when a dual 1:5 clock buffer with LVTTL/CMOS compatibility is required. Ensure the design accommodates the 5V supply voltage and the thermal characteristics of the QSOP package. Verify that the 166 MHz speed meets the system timing requirements.

Part Context

This part belongs to the 49FCT series of fast CMOS clock drivers. It shares functional similarities with other variants like the 49FCT805CTSOG but differs in package type (QSOP vs SOIC) and temperature grade. The 'B' suffix typically denotes the industrial temperature range extension compared to commercial grades.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.