SN74HCT574DW

Max Propagation Delay @ V, Max CL:	47ns @ 5.5V, 150pF
Base Part Number:	74HCT574
Package / Case:	20-SOIC (0.295", 7.50mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Input Capacitance:	3pF
Current - Quiescent (Iq):	8µA
Voltage - Supply:	4.5 V ~ 5.5 V
Current - Output High, Low:	6mA, 6mA
Trigger Type:	Positive Edge
Series:	74HCT
Clock Frequency:	40MHz
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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Logic - Flip Flops are an important type of data storage devices used in digital electronics. The SN74HCT574DW is a type of general-purpose Flip Flops that is popular amongst hobbyists and board-level designs such as Arduino projects as it provides great flexibility for its users. To understand its application fields and working principles, this article will be divided into two sections, including the SN74HCT574DW\'s general application fields and its working principle, respectively. The SN74HCT574DW is a type of dual-D flip-flop that utilizes two positive edge-triggered edges in order to control the flow of a digital signal. The device is designed to store data that is set by the input signals, and as such, is often used as a ‘toggle switch’ and in digital signal processing. Other more complex applications that make use of the dual-D Flip-Flop include signal conversion, frequency division, digital gating, signal integration, and serial-to-parallel and parallel-to-serial conversion. It is also often used as a memory element in microprocessors, and has the capability of handling clock frequencies of up to 25MHz.The SN74HCT574DW is owned by the Texas Instruments family, and is henceforth compatible with most logic families on the market, making it a viable option for both in-system and prototyping designs or applications. This dual-D Flip-Flop is also available as a trough-hole version, making it a viable choice for military applications as well as other radiation-dependent or atmospheric-dependent applications.The SN74HCT574DW’s working principle consists of a dual-edge-triggered flip-flop device designed to store data. The device utilizes two positive edge-triggered controlling inputs in order to store the data properly. It has two primary inputs, "D" (data) and "CK" (clock), which are used to set the stored data. In addition, three other inputs are also present to control the operations of the data being stored. The first is a "HOLD" pin that, when set to logic high level, can be used to keep the existing data stored in the output until a falling edge of the clock has passed. The next is the "PR" (Preset) input, which is used to set the output to logic high level independently from the other inputs. Lastly, the "RT" (Reset) is used to clear the outputs and reset them to the logic low level.In order to utilize the device, the user must input the desired data into the "D" input on the rising edge of the clock. The data will then be stored until a falling edge of the clock has passed, upon which the stored data will be shifted to the output "Q" pins. Since the device is triggered on both rising and falling edges of the clock, it is classified as dual-edge triggering.In conclusion, the SN74HCT574DW is a type of dual-D Flip-Flop device that is popular amongst hobbyists and board-level designs. It is owned by the Texas Instruments family and is henceforth compatible with most logic families, making it a great choice for both in-system and prototyping designs or applications. It has several application fields such as signal conversion, frequency division, digital gating, and serial-to-parallel and parallel-to-serial conversion. The device utilizes two positive edge-triggered controlling inputs in order to store the data properly, and it also has three other inputs to control various operations.

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