49FCT3805ASOG

Overview

The 49FCT3805ASOG is a dual 1-to-5 clock driver manufactured by Renesas Electronics. It operates on a single 3V to 3.6V supply and features two independent driver banks, each with its own output enable control. The device utilizes advanced CMOS technology for high-speed clock distribution with low input capacitance. It includes a 'heartbeat' monitor output identical to standard outputs for diagnostics and PLL driving. The component is housed in a 20-SOIC package (0.295 inch width) and supports surface-mount installation.

Feature Summary

• Dual 1:5 fanout configuration with independent output enables
• Heartbeat monitor output for system diagnostics
• Low capacitance inputs for signal integrity
• CMOS/LVTTL compatible I/O levels

Applications

• High-speed clock distribution networks
• Address bus distribution requiring low skew
• Single point-to-point transmission line driving
• PLL driving applications

Procurement Notes

Verify the specific suffix against official documentation, as the provided model lacks the full alphanumeric code found in public records (e.g., ASOGI8). Confirm RoHS compliance status and check for End-of-Life notifications from Renesas, as many variants in this series have reached discontinuation. Ensure the SOIC-20 package dimensions match the design requirements.

Selection Notes

Select this component when dual independent clock buffers are required within a 3.3V logic environment. The 1:5 fanout ratio suits distributing a single clock source to multiple receivers. Verify that the operating temperature range of -40°C to +85°C meets the environmental constraints of the target application.

Part Context

This part belongs to the 49FCT family of high-speed clock drivers. It is functionally similar to other variants such as the 49FCT3805APYGI8 and 49FCT3805EPYGI, differing primarily in packaging (SOIC vs. SSOP) and suffix codes. The manufacturer transitioned from IDT to Renesas Electronics, affecting part numbering conventions.

Replacement Considerations

Publicly confirmed substitutes include the 49FCT3805APYGI8 and 5PB1106PGGI. Verify pin compatibility and electrical specifications before substitution, as package differences may require layout adjustments.