SN74AHC74DBR Integrated Circuits (ICs)

Max Propagation Delay @ V, Max CL:	9.3ns @ 5V, 50pF
Base Part Number:	74AHC74
Package / Case:	14-SSOP (0.209", 5.30mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TA)
Input Capacitance:	2pF
Current - Quiescent (Iq):	2µA
Voltage - Supply:	2 V ~ 5.5 V
Current - Output High, Low:	8mA, 8mA
Trigger Type:	Positive Edge
Series:	74AHC
Clock Frequency:	115MHz
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:	Tape & Reel (TR)

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SN74AHC74DBR Application Field and Working Principle

The SN74AHC74DBR is a dual D-type flip-flop integrated circuit (IC) for logic-level applications. It is part of the AHC family of logic ICs, which is a high-speed, low power CMOS logic family. The SN74AHC74DBR can be used in a wide range of applications including data storage on computers, counters, registers, and so on.

Flip-Flop Overview

A flip-flop is a type of memory device that stores one-bit of digital information. It can also be thought of as a bistable switch, which is capable of being set to either 0 or 1. There are two common types of flip-flops. The first is the SR (set-reset) flip-flop, which is composed of two data inputs (SET and RESET) and two data outputs (Q and Q-bar). The second type is called a D-type (data) flip-flop and consists of one data input (DATA) and two outputs (Q and Q-bar). In both types, the output is complementary, meaning that when one output is high, the other is low.

SN74AHC74DBR

The SN74AHC74DBR is a dual D-type flip-flop IC that features low power consumption, high speed, and immunity to invalid inputs. It is composed of 4 inverters connected in series, with two of them acting as the data input and the other two as the data outputs. The two sets of outputs are complementary, and are commonly referred to as the "Q" and "Q-bar" outputs.The SN74AHC74DBR is capable of operating at data rates up to 20 MHz, and its output can switch between high and low states in less than 25ns. The SN74AHC74DBR is also immune to invalid inputs (such as "floating inputs"), meaning that it will not switch states in response to random noise.

Applications of SN74AHC74DBR

The SN74AHC74DBR is commonly used for data storage in computers, as it provides rapid operation and immunity to random noise. It can also be used in counters, registers, and other logic-level applications.The SN74AHC74DBR can also be used in digital logic systems, such as Sequential Logic, Bus Interface Logic, and Programmable Logic Devices. In addition, they can be used in the construction of digital oscillators and frequency dividers, as well as in the creation of custom logic circuits.

Working Principle

The SN74AHC74DBR operates by using the voltage on its data inputs (DATA) to determine the logic level (high or low) of its Q and Q-bar outputs. When the input voltage is high (1), the output will be high (1). When the input voltage is low (0), the output will be low (0). This process is known as the "latch-up flip-flop."The SN74AHC74DBR also features a "master reset" input, which is used to quickly reset all of the outputs to a low state (0). The "master reset" input is connected to the circuit\'s clock, allowing the entire circuit to be reset at the beginning of each clock cycle.

Conclusion

The SN74AHC74DBR is a dual D-type flip-flop IC that can be used in a wide range of logic-level applications. It is capable of high-speed operation and is immune to invalid inputs. The SN74AHC74DBR can be used for data storage, counters, registers, digital oscillators, frequency dividers, and the creation of custom logic circuits. It also features a "master reset" input, which allows it to be quickly reset at the beginning of each clock cycle.

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