IDT74FCT810BTSO8

Series:	74FCT
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Type:	Fanout Buffer (Distribution)
Number of Circuits:	2
Ratio - Input:Output:	1:5
Differential - Input:Output:	No/No
Input:	TTL
Output:	TTL
Frequency - Max:	100MHz
Voltage - Supply:	4.75 V ~ 5.25 V
Operating Temperature:	0°C ~ 70°C
Mounting Type:	Surface Mount
Package / Case:	20-SOIC (0.295", 7.50mm Width)
Supplier Device Package:	20-SOIC
Base Part Number:	IDT74FCT810

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IDT74FCT810BTSO8 Application Field and Working PrincipleThe IDT74FCT810BTSO8 is an advanced clock buffer/driver device manufactured by IDT that is primarily used for applications such as phase-locked loops (PLLs) and synchronous clocking of high-speed memory devices. The device is designed to support up to eight independent clock outputs, each with its own adjustable drive strength and output voltage. The device is also capable of buffering various clock input signals, allowing for the distribution of clock signals through multiple system nodes.Overview of the DeviceThe IDT74FCT810BTSO8 is a 8-Channel Clock Buffer/Driver optimized for use in PLLs and to provide synchronized clocking. The device itself is designed around a single 5 V power supply and is available in an 8-pin TSSOP package. Each individual output can be driven to either a high or low voltage level and features variable drive strength and adjustable voltage levels. Additional features of the device include active low and high output enable controls, low propagation delays, and low glitch and disable times.Input Signals and OutputsThe device allows for multiple input signal sources which can be individually buffered to an output. Each channel can be enabled/disabled independently from each other, with the first channel being enabled as long as the global enable signal is held high. The inputs are also TTL/CMOS-compatible, and the outputs are designed to source or sink up to 4 mA of current.Working Principle of the DeviceThe operation of the IDT74FCT810BTSO8 is based on the principles of timed transmission and reception of clock signals. The device uses a pair of data path transceivers to transmit and buffer data when an input signal is detected. When the input signal is detected, the transceiver forces the data onto the output line and the output will remain asserted until the input signal goes away. This enables the device to transmit clock signals over longer distances with minimal signal degradation.The device is also capable of controlling the output drive strength and voltage levels by utilizing adjustable voltage output drivers. When a signal is transmitted, the drivers will adjust their voltage levels to match the incoming signal, ensuring that outputs always remain within the desired range.The device also features input glitch rejection logic, which helps to reduce the level of noise and spurious signals received from outside sources. This logic allows the device to reject transient input signals, ensuring that only valid data gets passed onto the output.ConclusionThe IDT74FCT810BTSO8 is an advanced clock buffer/driver device designed for applications such as phase-locked loops (PLLs) and synchronous clocking of high-speed memory devices. It allows for the distribution of clock signals through multiple system nodes and is capable of buffering various clock input signals. The device is powered by a single 5 V supply, and each of its outputs are capable of sourcing/sinking up to 4 mA of current. The device also features adjustable voltage levels and adjustable drive strength, as well as input glitch rejection logic to reduce noise and spurious signals.

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