49FCT805CTSOG8

Overview

The 49FCT805CTSOG8 is a dual clock driver and distribution buffer manufactured by Renesas Electronics. It operates with a 1:5 multiplication factor, providing five outputs for each of its two inputs. The device supports CMOS, LVCMOS, and TTL output types, driven by an LVCMOS input interface. It functions within a supply voltage range of 4.5V to 5.5V and achieves a maximum output frequency of 166 MHz. Designed for surface mount applications, it is housed in a 20-SOIC package and operates reliably across a commercial temperature range of 0°C to +70°C.

Feature Summary

• Dual channel architecture with 1:5 fan-out ratio per channel
• Supports CMOS, LVCMOS, and TTL output logic levels
• Maximum operating frequency of 166 MHz
• Housed in a 20-SOIC (0.295", 7.50mm wide) surface-mount package

Applications

• Clock signal distribution in high-speed digital systems
• Buffering and driving multiple loads from a single source
• Timing synchronization in data processing circuits

Procurement Notes

This component is identified as End-of-Life (EOL) by the manufacturer. Availability is restricted or non-existent through standard distribution channels. Verification of current stock status and alternative sourcing options is required before procurement planning. Check for official Product Change Notifications regarding discontinuance dates.

Selection Notes

Select this part when a dual-channel, 1:5 fan-out clock buffer with mixed logic compatibility (CMOS/LVTTL) is required. Ensure the design accommodates the 20-SOIC footprint and the 0°C to +70°C operating temperature range. Verify that the 166 MHz maximum frequency meets system timing requirements and that the 4.5V-5.5V supply voltage aligns with the power domain.

Part Context

The 49FCT805CTSOG8 belongs to the 49FCT series of Fast Clock Drivers. This series is characterized by low propagation delay and high drive capability. The 'C' suffix typically denotes the commercial temperature grade, while 'TSOG8' specifies the 20-SOIC tape-and-reel packaging configuration. It serves as a legacy solution for clock distribution tasks previously handled by similar IDT components.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Due to the EOL status, engineers should consult Renesas Electronics for recommended modern replacements or perform a full pin-to-pin and electrical parameter comparison with potential alternatives.