IDT74FCT20807QI8

Series:	74FCT
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Type:	Fanout Buffer (Distribution)
Number of Circuits:	1
Ratio - Input:Output:	1:10
Differential - Input:Output:	No/No
Input:	LVTTL
Output:	LVTTL
Frequency - Max:	166MHz
Voltage - Supply:	2.3 V ~ 2.7 V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	20-SSOP (0.154", 3.90mm Width)
Supplier Device Package:	20-QSOP
Base Part Number:	IDT74FCT20807

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Clock/Timing - Clock Buffers, Drivers Description

The IDT74FCT20807QI8 is an 8-bit Register/Buffer designed as an interface between low-voltage CMOS devices and other circuits operating at similar or lower logic levels. Each stage of the buffer is controlled by an Internal Clock Generation Circuit, allowing data to be clocked in and out of the buffer at independent rates. This flexibility makes this buffer a valuable tool for interfacing between various digital circuits.

Application Field of IDT74FCT20807QI8

The IDT74FCT20807QI8 Clock Buffer is specifically designed for driving multiple circuits from a single clock source. It can be used to reduce the total power consumption of a system and improve the performance of the system in terms of speed and signal integrity. The IC is well-suited for applications such as multiplexers, phase-locked loops, clock switches, memory interfaces, video buffering, and memory buses. It is also suitable for driving multiple clocks on a single output. This makes the IDT74FCT20807QI8 ideal for use as a clock driver for a wide array of digital systems. The buffer also works with a variety of logic families ranging from TTL to advanced CMOS logic.

Working Principle of IDT74FCT20807QI8

The IDT74FCT20807QI8 Clock Buffer consists of two integrated blocks; the I/O Buffer and the Setup/Hold Blocking Circuit. The I/O Buffer receives data from the input and clocks it into the output at the desired rate. The Setup/Hold Blocking Circuit ensures proper timing of data flow through the buffer by preventing setup and hold times from being violated.The Buffer is designed to be a low-power, low-cost solution for clocking multiple circuits from a single source. Each outputs is designed to drive over a ±6.75mA current range and have an output voltage range of 0.5V to 4.5V. It is rated for a maximum operating frequency of 80MHz and is able to switch outputs at a rate of 4MHz.The IDT74FCT20807QI8 is designed to operate within a power range of 1.65V to 3.6V. It features an very low quiescent current level for minimal power consumption, and its high-impedance input structure reduces the power consumption even further. Additionally, the IC includes input clamping circuitry, which helps to improve noise immunity and reduce power consumption.

Conclusion

The IDT74FCT20807QI8 is a low-cost, low-power solution for clocking multiple circuits from a single source. Its flexible architecture and advanced features make it ideal for use in a wide variety of digital systems. The buffer is rated for a maximum operating frequency of 80MHz and is capable of switching outputs at a rate of 4MHz. It is designed to operate within a power range of 1.65V to 3.6V and offers a very low quiescent current level for minimal power consumption. The buffer also includes input clamping circuitry, which helps to improve noise immunity and reduce power consumption.

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