Max Propagation Delay @ V, Max CL:	10.6ns @ 5V, 50pF
Base Part Number:	74AHCT574
Package / Case:	20-SOIC (0.295", 7.50mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TA)
Input Capacitance:	3pF
Current - Quiescent (Iq):	4µA
Voltage - Supply:	4.5 V ~ 5.5 V
Current - Output High, Low:	8mA, 8mA
Trigger Type:	Positive Edge
Series:	74AHCT
Clock Frequency:	115MHz
Number of Bits per Element:	8
Number of Elements:	1
Output Type:	Tri-State, Non-Inverted
Type:	D-Type
Function:	Standard
Part Status:	Active
Packaging:	Tube

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Introduction

The 74AHCT574D,112 is a flip-flop type of circuit, commonly used as a logic device in many applications. It belongs to the 74LS series and belongs to the Logic - Flip Flops category. In this article, the application field and working principle of the 74AHCT574D,112 will be discussed.

Applications

The 74AHCT574D,112 is mainly used in digital circuitry. It is used in applications like memory circuits, pulse generators, frequency dividers, waveform converters, multiplexers and demultiplexers etc. It is also used in communication systems, microprocessor systems and high speed circuits.

Working Principle

The 74AHCT574D,112 is a synchronous flip-flop circuit. It consists of four clocked flip-flops. Each flip-flop has two data inputs, the preset and the clear inputs. Depending on the state of these inputs, the output of the flip-flop will be either a ‘1’ or a ‘0’. The state of a flip-flop is determined by the logic of the preset and clear inputs so that if a specific input is ‘1’, its output will be ‘1’ and it remains ‘1’ even after the clock input transitions to the negative edge. Similarly, if the clear input is ‘1’, the output of the flip-flop will be ‘0’, and will remain at that level until the clock input transitions to the negative edge.The 74AHCT574D,112 uses a multiplexer to select the flip-flops for either the preset or the clear signal. This allows the device to select a specific active flip-flop to preset or clear itself. The key advantage of the 74AHCT574D,112 is its high speed operation. It is able to clock signals up to approximately 460 MHz. This makes it suitable for applications that require high speed signal processing such as communication systems and microprocessors.

Conclusion

The 74AHCT574D,112 is a useful and reliable logic device used in many applications. Its high-speed operation makes it ideal for functions that require high speed signal processing. It is one of the most popular and widely used flip-flop type circuits in the Logic – Flip Flops category.

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