49FCT3805DQGI8

Overview

The 49FCT3805DQGI8 is a dual 1-to-5 clock driver and fan-out buffer manufactured by Renesas Electronics. It operates on a single 3V to 3.6V supply voltage with an input frequency of up to 166 MHz. The device features LVCMOS inputs and outputs, providing ten outputs across two banks. It is housed in a 20-pin QSOP package (20-QSOP) with dimensions of 8.7 x 3.8 x 1.47 mm and a pitch of 0.64 mm. The component supports surface mount installation and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Dual 1-to-5 clock distribution architecture with LVCMOS I/O compatibility
• Maximum operating frequency of 166 MHz
• Single 3V to 3.6V power supply operation
• Industrial temperature range from -40°C to +85°C

Applications

• Clock distribution networks requiring high-speed signal buffering
• System-on-chip (SoC) clock generation and distribution
• High-performance computing and telecommunications equipment

Procurement Notes

This component is classified as obsolete and no longer in active manufacturing. Verification of availability should focus on surplus or secondary market sources rather than direct manufacturer allocation. Buyers must confirm the specific revision and packaging condition when sourcing from non-primary distributors.

Selection Notes

Select this part for applications requiring dual 1:5 clock splitting with LVCMOS interface levels. Ensure the design accommodates the 3V to 3.6V supply constraint. Due to its obsolete status, alternative components such as the 5PB1106PGGI8 may be considered for new designs, though pinout and electrical characteristics require careful comparison against the original specification.

Part Context

The 49FCT3805 series belongs to Renesas' FCT family of fast CMOS logic devices. This specific variant utilizes the D suffix for the QSOP package type. The 'I8' suffix typically denotes tape and reel packaging options. The device serves as a buffer/driver within the broader clock and timer IC category, designed for low skew and high drive capability.

Replacement Considerations

Publicly confirmed substitutes include the 5PB1106PGGI8 from Renesas. Other potential alternatives found in distributor listings include parts from Diodes Inc., but specific cross-reference validation is required due to the component's discontinued status.