PI49FCT3805HE

Clock Buffers, Drivers Overview

The PI49FCT3805HE is a 3.3V non-inverting clock driver manufactured by Diodes Incorporated, housed in a 20-pin SSOP package with a 209-mil width. It features two independent buffer groups, each providing a 1-to-5 fanout configuration with active LOW 3-state output enable inputs (OEA, OEB). The device operates within a supply voltage range of 3.0V to 3.6V and supports an industrial temperature range of -40°C to +85°C. Key electrical specifications include a maximum propagation delay of 6.5ns at 50pF load, extremely low output skew of 0.7ns, and typical quiescent power consumption of 1mW.

Clock Buffers, Drivers Feature Summary

• Dual independent 1:5 fanout buffer groups with 3-state control
• Extremely low output skew of 0.7ns (max)
• TTL input and CMOS output compatibility
• Integrated monitor output pin for diagnostics

Clock Buffers, Drivers Applications

• Clock bus distribution with 3-state control
• High-speed clock distribution requiring low skew
• Single point-to-point transmission line driving

Clock Buffers, Drivers Procurement Notes

Verify the 'E' suffix indicates Pb-free and Green compliant packaging as specified in the ordering information table. Confirm the 'H' package code corresponds to the 20-pin 209-mil wide SSOP form factor. Ensure the required speed grade matches the Blank designation for standard performance characteristics.

Clock Buffers, Drivers Selection Notes

Select this component when a non-inverting clock driver with dual 1:5 fanouts is required. The PI49FCT3805HE provides TTL-compatible inputs and CMOS outputs suitable for mixed-signal environments. Consider the 0.7ns max skew and 6.5ns max propagation delay for timing-critical high-speed applications operating at 3.3V.

Clock Buffers, Drivers Part Context

This part belongs to the PI49FCT3805/3806 series of 3.3V Fast CMOS Buffer/Clock Drivers. It serves as the non-inverting counterpart to the PI49FCT3806. The HE variant specifically denotes the Pb-free and Green packaging option within the H (SSOP) package family.

Clock Buffers, Drivers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.

Clock Buffers, Drivers FAQ

What is the function of the MON pin?

The MON pin serves as a monitor output pin, providing a signal identical to the other outputs for diagnostic purposes.

How does the 3-state control work?

The device has two independent groups of buffers, each with its own Output Enable input (OEA or OEB). These inputs are active LOW; when HIGH, the respective outputs enter a high-impedance state.

What is the input hysteresis specification?

The device features hysteresis on all inputs, with a typical value of 150 mV.