IDT74FCT20807QI

Clock Buffers, Drivers Overview

The IDT74FCT20807QI is a 2.5V CMOS 1-to-10 fanout clock buffer designed for industrial temperature ranges (-40°C to +85°C). It operates with a supply voltage of 2.3V to 2.7V and supports frequencies up to 166 MHz. The device features TTL-compatible inputs and outputs, ensuring compatibility with standard logic families. Key electrical parameters include a maximum propagation delay of 3.5 ns at 100 MHz and output skew of 150 ps. Packaged in a 20-pin QSOP (Green), it provides efficient clock distribution with low noise and power consumption.

Clock Buffers, Drivers Feature Summary

• 1:10 fanout ratio with TTL-compatible I/O levels
• Maximum operating frequency of 166 MHz
• Output-to-output skew guaranteed at 150 ps maximum
• Industrial temperature range operation from -40°C to +85°C

Clock Buffers, Drivers Applications

• Synchronous system clock distribution networks
• High-speed digital signal processing interfaces
• Communication equipment timing circuits

Clock Buffers, Drivers Procurement Notes

Verify the specific ordering suffix 'QG' confirms the Green QSOP package variant. Confirm end-of-life status as non-green parts were scheduled for discontinuation on May 13, 2010. Ensure current inventory sources provide valid RoHS-compliant units if environmental compliance is required for the design.

Clock Buffers, Drivers Selection Notes

Select this component when a single high-speed clock source must drive ten synchronous loads with minimal skew. Verify that the system operates within the 2.3V to 2.7V supply range. Consider the 20-QSOP package dimensions for PCB layout constraints compared to SSOP alternatives.

Clock Buffers, Drivers Part Context

This part belongs to the FCT20807 family of 2.5V clock drivers manufactured by Integrated Device Technology (IDT), now part of Renesas Electronics. It serves as a non-inverting buffer to reduce loading on preceding drivers while maintaining signal integrity across multiple branches.

Clock Buffers, Drivers Replacement Considerations

Check for updated Renesas equivalents such as the 74FCT20807QGI which may offer updated manufacturing processes or packaging options. Verify pin compatibility and electrical specifications against any potential substitute devices.