49FCT3805PYG8

Overview

The 49FCT3805PYG8 is a clock buffer and driver IC manufactured by Renesas Electronics Corporation, belonging to the 49FCT series. It features two independent driver banks, each providing a 1:5 fanout ratio with dedicated output enable controls. The device operates on a single 3V to 3.6V supply voltage and supports CMOS and LVTTL input/output logic levels. Packaged in a 20-SSOP (0.209 inch / 5.30mm wide) surface-mount enclosure, it is rated for an operating temperature range of 0°C to 70°C. This component is designed for high-speed clock distribution applications requiring low skew and signal integrity.

Feature Summary

• Dual 1:5 fanout clock driver architecture with individual output enable control per bank
• Operates within a 3V to 3.6V power supply range supporting CMOS and LVTTL interfaces
• Low capacitance inputs designed for high-speed clock distribution and minimal signal degradation
• Available in a 20-SSOP surface-mount package suitable for automated assembly

Applications

• High-speed clock distribution networks where signal quality and skew are critical
• Address distribution systems requiring one-to-many signal transmission with low skew
• Single point-to-point transmission line driving in digital circuitry
• General-purpose clock buffering in consumer electronics and industrial equipment

Procurement Notes

Verify the specific suffix 'PYG8' against the manufacturer's current datasheet to confirm the commercial temperature grade (0°C to 70°C) and SSOP package dimensions. Ensure compatibility with existing PCB footprints, as pin configurations may vary across different packaging options within the same family. Cross-reference RoHS compliance status with the latest environmental declarations from Renesas Electronics Corporation before finalizing procurement.

Selection Notes

Select this component when dual independent clock buffers with 1:5 fanout are required for 3.3V logic systems. The 49FCT3805PYG8 is appropriate for designs needing CMOS or LVTTL compatibility without differential signaling requirements. Consider the 20-SSOP package constraints regarding board space and thermal dissipation. Verify that the 0°C to 70°C operating range meets the environmental conditions of the target application, as higher temperature variants exist in the same product family.

Part Context

The 49FCT3805PYG8 is part of the broader 49FCT3805 family of clock drivers. While functionally similar to variants like the 49FCT3805APYGI8, the PYG8 suffix specifically denotes the commercial temperature range and SSOP packaging. Other family members may offer extended temperature ranges (-40°C to 85°C) or alternative packages such as SOIC. The core functionality remains consistent across the series, differing primarily in environmental ratings and physical form factors.

Replacement Considerations

Publicly listed substitutes include Diodes Incorporated PI49FCT32805QE. Verify pin-to-pin compatibility and electrical specifications before substitution. Alternative packages within the same family, such as 49FCT3805ASOGI8 (SOIC-20), may require PCB redesign due to different footprint dimensions.