49FCT805PYG8

Overview

The Renesas Electronics Corporation 49FCT805PYG8 is a dual clock driver and distribution component belonging to the 49FCT series. It features two independent banks, each providing a 1:5 fanout ratio with CMOS outputs. The device operates on a single 5V supply voltage (4.5V to 5.5V) and supports LVCMOS/LVTTL input logic levels. Packaged in a 20-SSOP surface-mount format, it is designed for high-speed clock distribution applications requiring low skew and signal integrity. The component is currently listed as obsolete by the manufacturer.

Feature Summary

• Dual 1:5 fanout clock buffer architecture
• CMOS output drivers compatible with LVTTL inputs
• Single 5V power supply operation (4.5V–5.5V)
• 20-pin SSOP surface-mount package

Applications

• High-speed clock distribution networks
• System board clock buffering
• Address bus distribution requiring low skew

Procurement Notes

This component is officially discontinued and no longer in active production. Verification of availability is restricted to existing stock from third-party distributors or surplus markets. Buyers must confirm lot dates and storage conditions due to the end-of-life status. No new units are manufactured by Renesas Electronics Corporation.

Selection Notes

Select this part only if legacy compatibility with the 49FCT family is required. Verify that the 5V operating voltage matches the system design, as newer alternatives may support lower voltages. Ensure the 20-SSOP footprint fits the PCB layout constraints. Check for functional equivalents within the same series if pin-out compatibility is critical.

Part Context

The 49FCT805PYG8 is part of the broader 49FCT805 family, which includes variants with different packaging options such as SOIC and QSOP. The 'P' suffix denotes the SSOP package type, while 'YG8' typically indicates specific tape-and-reel packaging configurations. This model serves as a direct replacement for older IDT-branded parts with similar specifications.

Replacement Considerations

Direct replacements include other 49FCT805 variants like 49FCT805CTSOG or 49FCT805CTQG, provided the package difference is acceptable. Cross-reference with IDT49FCT805 equivalents for pin-compatible swaps. Verify electrical parameters against current generation FCT series components if redesigning.