SN74LVC74APWG4

Max Propagation Delay @ V, Max CL:	5.2ns @ 3.3V, 50pF
Base Part Number:	74LVC74
Package / Case:	14-TSSOP (0.173", 4.40mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TA)
Input Capacitance:	5pF
Current - Quiescent (Iq):	10µA
Voltage - Supply:	1.65 V ~ 3.6 V
Current - Output High, Low:	24mA, 24mA
Trigger Type:	Positive Edge
Series:	74LVC
Clock Frequency:	100MHz
Number of Bits per Element:	1
Number of Elements:	2
Output Type:	Differential
Type:	D-Type
Function:	Set(Preset) and Reset
Part Status:	Active
Packaging:	Tube

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Introduction

SN74LVC74APWG4 is a highly popular dual D-type flip-flop integrated circuit (IC) widely used in digital circuit designs. It features two non-clocked D flip-flops having complementary (dual) outputs, a single VCC power supply with LVTTL input logic levels and an output drive capability of up to twelve (12) LVTTL load devices. The SN74LVC74APWG4 is a versatile dual D flip-flop IC and finds numerous applications around the world.

Application Field

The SN74LVC74APWG4 is widely used in applications that require dual D flip-flops and complementary outputs. Examples of applications for the SN74LVC74APWG4 are digital signal processing (DSP) systems, programmable logic controllers (PLCs), distributed control systems (DCSs) and analog-to-digital and digital-to-analog (AD/DA) converters. The IC is also used in counter designs, where it can be used as a master/slave flip-flop. By connecting two SN74LVC74APWG4 ICs in series, a four-bit progressive counter can be designed and implemented. This can be used for encoding, decoding, synchronization of digital signals, waveforms, and frequency synthesizers.The SN74LVC74APWG4 is suitable for applications in contactless card readers, point-of-sale (POS) terminals, automotive electronics, communications systems, telecommunications applications, and other process control.

Working Principle

At the heart of the SN74LVC74APWG4 lies two D flip-flops. D flip-flops are a fundamental type of digital flip-flop that are used for capturing and storing data in a digital circuit. It contains two logic inputs: D (input data) and clock, and two outputs Q and complement of Q. The Q output is the flip-flop’s output. The D and clock input together control the transfer of data from input to output and the output is complemented at the same time. When the clock is triggered, the value on the input (D input) is transferred to the flip-flop’s output (Q). If the input is a logic 1, the output will be a logic 1. Similarly, if the input is a logic 0, the output of the flip-flop will be a logic 0. The Q output will change only when the clock edge is a rising edge.The SN74LVC74APWG4 also features set and reset inputs. They override the normal operation of the flip-flop. When the set input is triggered, the output is forced to a logic 1 regardless of the D input, and when the reset input is triggered, the output is forced to a logic 0 regardless of the D input.

Conclusion

The SN74LVC74APWG4 dual D-type flip-flop is a versatile integrated circuit (IC) used in many different applications. It features two non-clocked D flip-flops with complementary outputs, single VCC power supply with LVTTL input logic levels, and an output drive capability of up to 12 LVTTL load devices. The SN74LVC74APWG4 is used for counter designs, digital signal processing, programmable logic controllers, distributed control systems, analog-to-digital and digital-to-analog converters, contactless card readers, point-of-sale terminals, automotive electronics, communications systems, and telecommunications applications. The IC also features two data inputs, a clock input, and two reset inputs, which enable the transfer of data from input to output and can be used to override the normal operation of the flip-flop.

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