PI49FCT3805AQEX

Clock Buffers, Drivers Overview

The PI49FCT3805AQEX is a 3.3V non-inverting clock driver manufactured by Diodes Incorporated, utilizing advanced submicron CMOS technology. It features two independent buffer groups with a 1-in, 5-out configuration per bank and active LOW 3-state Output Enable inputs (OEA, OEB). The device includes a dedicated Monitor (MON) output pin for diagnostics and PLL driving. Electrical specifications include a maximum propagation delay of 4.5 ns and an extremely low output skew of 0.5 ns at VCC = 3.3V ±0.3V. It operates within an industrial temperature range of –40°C to +85°C.

Clock Buffers, Drivers Feature Summary

• Two independent 1-to-5 fanout buffer banks with 3-state control
• Extremely low output skew of 0.5 ns
• Dedicated MON output pin for signal monitoring
• TTL input and CMOS output compatibility

Clock Buffers, Drivers Applications

• High-speed clock distribution networks
• Clock busing with 3-state control
• Address distribution requiring low skew
• PLL driving applications

Clock Buffers, Drivers Procurement Notes

Verify the 'A' speed grade suffix corresponds to the specified 4.5 ns maximum propagation delay in the datasheet switching characteristics table. Confirm the 'Q' package code matches the required 20-pin QSOP form factor. Ensure the 'E' suffix aligns with the Pb-free & Green packaging designation listed in the ordering information section.

Clock Buffers, Drivers Selection Notes

Select this component when a non-inverting logic function is required for 3.3V systems. The PI49FCT3806 should be chosen if an inverting configuration is needed instead. Verify that the load capacitance does not exceed 50 pF to maintain the guaranteed timing parameters. Consider the 0.5 ns skew specification for critical signal integrity requirements.

Clock Buffers, Drivers Part Context

This part belongs to the PI49FCT3805/3806 series, which are 3.3V Fast CMOS Buffer/Clock Drivers. It serves as the non-inverting counterpart to the PI49FCT3806. The device is a 3.3V version of the legacy PI49FCT805/806 series, offering improved performance metrics such as lower power consumption and tighter skew specifications.

Clock Buffers, Drivers Replacement Considerations

The PI49FCT3806 is the direct inverting equivalent within the same family. Other speed grades such as PI49FCT3805B or PI49FCT3805C offer faster propagation delays but may require verification of package availability.