SN74AHC74PWR Integrated Circuits (ICs)

Series:	74AHC
Packaging:	Tape & Reel (TR)
Part Status:	Active
Function:	Set(Preset) and Reset
Type:	D-Type
Output Type:	Differential
Number of Elements:	2
Number of Bits per Element:	1
Clock Frequency:	115MHz
Max Propagation Delay @ V, Max CL:	9.3ns @ 5V, 50pF
Trigger Type:	Positive Edge
Current - Output High, Low:	8mA, 8mA
Voltage - Supply:	2 V ~ 5.5 V
Current - Quiescent (Iq):	2µA
Input Capacitance:	2pF
Operating Temperature:	-40°C ~ 125°C (TA)
Mounting Type:	Surface Mount
Package / Case:	14-TSSOP (0.173", 4.40mm Width)
Base Part Number:	74AHC74

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Introduction

The SN74AHC74PWR is a device within the Logic family, more specifically a Flip-Flop type circuit. It is used in applications such as frequency division, reset and control signals, data retention and latching functions, etc. This device has two outputs and it consists of two independent data-strobe D-type flip-flops with complementary outputs. It is made from advanced CMOS logic, providing highest noise immunity and low power consumption.

Application Field

The SN74AHC74PWR has a wide range of applications in the area of electronics and engineering. Frequency division, counter applications, and reset and control signals are among the most common applications that this device is used for. Additionally, this Flip-Flop circuit may also be useful in data retention and latching functions, shift registers and other logic-based applications.

Features

This device possesses some characteristics and features that are useful in a variety of applications. It has a very low power consumption of typically one tenth of the consumption of other Flip-Flop circuits. Despite the low power consumption, the noise immunity of the SN74AHC74PWR is excellent, meaning that it can handle even very small signals without generating too much noise.

Advantages

The SN74AHC74PWR has several advantages for those who are looking for a reliable Flip-Flop circuit. It integrates two D-type Flip-Flops in a very small package, so it is perfect for applications which require a device with a small footprint. Additionally, since this device consumes very little power, it is perfect for applications of low power consumption, such as smartphone and wearables, etc. This way, designers will not have to worry about the device draining battery power quickly.

Working Principle

The working principle of the SN74AHC74PWR is quite simple. The two Flip-Flops are connected in series and they are independently controlled by a CLK and an EN (enable) input. The CLK input allows the device to "flipshWhen the CLK input receives a transition of logic (i.e. a pulse), the EN input should be at a logic 1 in order to enable the Flip-Flop. Based on the value of the enable input and on the state of D when the transition of the clock is applied, the Flip-Flop will output one of the two possible states, that is, either a logic 0 or a logic 1. Both of the outputs will be complementary of each other.

Conclusion

The SN74AHC74PWR is a very useful and versatile device for many applications, although it is most commonly used for frequency division, reset and control signals, data retention and latching functions, etc. This Flip-Flop circuit has low power consumption, excellent noise immunity and a small footprint, making it perfect for many applications in the area of electronics. The working principle is quite simple, as the outputs of the two Flip-Flops in the device depend on the inputs (enable and clock) at the moment of transition.

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