49FCT3805APYGI8

Overview

The 49FCT3805APYGI8 is a dual 1-to-5 clock driver manufactured by Renesas Electronics. It operates within a supply voltage range of 3 V to 3.6 V and utilizes LVCMOS input and output types. The device features two independent driver banks, each providing a 1:5 fanout with individual output enable controls. Designed for high-speed clock distribution, it ensures low skew and high signal quality. The component is housed in a 20-SSOP package and supports surface mount installation. It functions across an operating temperature range from -40°C to +85°C.

Feature Summary

• Dual 1-to-5 fanout configuration with independent output enable control for each bank
• LVCMOS compatible inputs and outputs for standard logic interfacing
• Low capacitance inputs designed to minimize loading effects on source drivers
• Integrated heartbeat monitor output (MON) for diagnostic verification and PLL driving

Applications

• High-speed clock distribution networks requiring low skew performance
• Address bus distribution where single signals drive multiple receivers
• Point-to-point transmission line driving applications
• System diagnostics via the dedicated MON output pin

Procurement Notes

Verify the specific suffix 'PYGI8' against the manufacturer's current datasheet to confirm package dimensions and RoHS compliance status. Confirm that the 20-SSOP footprint matches the target PCB design. Check for any recent Product Change Notifications (PCN) regarding assembly sources or labeling changes issued by Renesas. Ensure the operating temperature range meets the environmental requirements of the final application.

Selection Notes

Select this component when a dual-channel clock buffer with 1:5 fanout is required. The LVCMOS interface compatibility makes it suitable for systems using standard CMOS or LVTTL logic levels. The inclusion of a heartbeat monitor distinguishes it from basic buffers, offering diagnostic capabilities for critical clock lines. Verify that the 3V to 3.6V supply voltage aligns with the system power rails before integration.

Part Context

This part belongs to the 49FCT3805A series of clock drivers. It is functionally related to variants such as the 49FCT3805PYG8, which shares the same electrical characteristics but may differ in operating temperature range or packaging details. The 'A' suffix typically denotes specific manufacturing revisions or enhanced specifications within the family. Other package options include SOIC-20 variants like the 49FCT3805ASOGI8.

Replacement Considerations

Publicly listed alternative part numbers include PI49FCT32805QE from Diodes Incorporated. Verify pinout compatibility and electrical parameters before substitution. No other direct cross-model replacements are confirmed in the provided documentation.