49FCT3805APYG

Overview

The Renesas 49FCT3805APYG is a dual 1-to-5 clock driver and buffer designed for high-speed clock distribution. It operates on a single 3V to 3.6V supply and features LVCMOS/LVTTL compatible inputs and outputs. The device integrates two independent driver banks, each providing five outputs with individual output enable controls. Packaged in a 20-pin SSOP (0.209 inch width), it supports industrial temperature ranges from -40°C to +85°C. Key electrical characteristics include a maximum operating frequency of 200 MHz and low input capacitance to minimize loading effects.

Feature Summary

• Dual 1:5 fanout architecture with independent output enables
• LVCMOS/LVTTL input and output compatibility
• Low input capacitance for reduced signal loading
• Industrial temperature range (-40°C to +85°C)
• 20-pin SSOP surface-mount package

Applications

• High-speed clock distribution networks
• Address bus buffering in memory systems
• Point-to-point transmission line driving
• Systems requiring low skew clock signals

Procurement Notes

Verify the specific suffix 'A' and package code 'PYG' against the manufacturer's current datasheet to ensure pinout and electrical specifications match the design requirements. Confirm RoHS compliance status and moisture sensitivity level prior to procurement. Check for obsolescence notices or lifecycle changes directly from Renesas Electronics.

Selection Notes

Select this component when a dual-channel clock buffer with 1:5 fanout is required for CMOS or LVTTL logic families. Ensure the supply voltage remains within the 3V to 3.6V range. Consider the 20-SSOP package dimensions for PCB layout constraints. Verify that the 200 MHz maximum frequency meets the system timing requirements.

Part Context

This part belongs to the 49FCT series of fast CMOS clock drivers. It is functionally similar to other FCT3805 variants but distinguished by its specific package type and commercial/industrial temperature rating. The 'A' suffix typically denotes an advanced or specific revision within the product family.

Replacement Considerations

Direct replacements may include other 49FCT3805 variants with different packages (e.g., SOIC) if pinouts are compatible. Cross-reference with IDT or Diodes Incorporated equivalents like the PI49FCT32805QE, ensuring voltage levels and fanout ratios match.