CD74HCT109E

Max Propagation Delay @ V, Max CL:	40ns @ 4.5V, 50pF
Base Part Number:	74HCT109
Package / Case:	16-DIP (0.300", 7.62mm)
Mounting Type:	Through Hole
Operating Temperature:	-55°C ~ 125°C (TA)
Input Capacitance:	10pF
Current - Quiescent (Iq):	4µA
Voltage - Supply:	4.5 V ~ 5.5 V
Current - Output High, Low:	4mA, 4mA
Trigger Type:	Positive Edge
Series:	74HCT
Clock Frequency:	54MHz
Number of Bits per Element:	1
Number of Elements:	2
Output Type:	Differential
Type:	JK Type
Function:	Set(Preset) and Reset
Part Status:	Active
Packaging:	Tube

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Introduction

CD74HCT109E is a logic flip-flop device. It can be used in a variety of applications, such as digital logic systems, where it can store and transmit signals or data. It also has the ability to operate in both asynchronous and synchronous modes. In this article, we will discuss the application fields and working principle of the CD74HCT109E.

Application Fields

The CD74HCT109E is commonly used in a variety of applications. One of the most common uses is in pulse detection or logic measurements. In this application, the device acts as a latch and transmits a signal when the logic state changes between high and low. It is also used for defining logic character levels in data interrogation systems. The device is extremely versatile and can be used as an element in digital multiplexers, as a clock buffer in high-frequency applications, and as a hold shift register in data acquisition systems. It is also used in applications such as signal buffering, connecting memories, counter circuits, and microprocessor bus drivers.

Working Principle

The CD74HCT109E is a logic flip-flop device that functions as a single stage data storage device. The device consists of two signal inputs, two signal outputs, one control input and two enable inputs. The signal inputs are designated as D (Data) and C (Clock). The signal outputs are designated as S (Set) and R (Reset). The control input is used to control the state of the device. When the control is LOW, the device is in an active state and the data is stored in the device. When the control is HIGH, the device is in an inactive state and the stored data is released. The two enable inputs are used to control the device\'s operation. The most common uses of the CD74HCT109E are to store a single bit of data in registers and to synchronize the data flow in pulse-clocked systems. In pulse-clocked systems, the data is stored on the falling edge of the clock pulse and the data is updated on the rising edge of the clock pulse.

Conclusion

The CD74HCT109E is a versatile logic flip-flop device that can be used in a variety of applications. It can be used to store a single bit of data, synchronize the data flow in pulse-clocked systems and detect logic level changes in digital systems. It is also used in multiplexers and to buffer signals, connect memories, and act as a shift register. In this article, we discussed the application fields and working principle of the CD74HCT109E.

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