The 7474 is a digital logic IC containing two D-type flip-flops used for storing, synchronizing and processing binary data in sequential logic circuits.

How many flip-flops are inside a 7474 IC?

The IC contains two independent D-type flip-flops.

What is a D-type flip-flop used for?

A D-type flip-flop is used to store a single bit of digital data and is commonly used in registers, counters, timing circuits, frequency dividers and sequential logic systems.

What are the inputs and outputs of a 7474 flip-flop?

Each flip-flop typically has a D data input, clock input, asynchronous preset and clear inputs, plus Q and Q-bar complementary outputs.

What is the difference between 74HC74 and 74LS74?

Both are dual D-type flip-flop ICs, but 74HC74 belongs to the CMOS logic family while 74LS74 belongs to the Low-Power Schottky TTL family. Their electrical characteristics and operating requirements differ.

What package does the 7474 IC use?

The product is specified as a 14-pin dual in-line package, commonly called DIP-14.

Can the 74HC74 be used with Arduino?

Yes. The 74HC74 can be used in Arduino-based digital logic projects when its supply voltage and logic levels are compatible with the rest of the circuit.

Can a 7474 IC be used as a frequency divider?

Yes. A D-type flip-flop can be configured to toggle its output and divide an input clock frequency, making the 7474 useful in frequency-divider circuits.

What are the applications of a 7474 flip-flop IC?

Common applications include data storage, counters, registers, frequency dividers, timing circuits, sequential logic, state machines and digital control systems.

Are 7474, 74HC74 and 74LS74 exactly the same?

They provide the same basic dual D-type flip-flop function, but they belong to different logic families and can have different voltage, timing, current and logic-level specifications.

7474 74HC74 74LS74 Dual D-Type Flip-Flop DIP-14 IC

Name: 7474 74HC74 74LS74 Dual D-Type Flip-Flop DIP-14 IC
Brand: KathalTech
SKU: 7474-74hc74-74ls74-dual-d-type-flip-flop-dip-14-ic
Price: 40.00 BDT
Availability: InStock
Rating: 5.0 (1 reviews)

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৳40.00

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The 7474 / 74HC74 / 74LS74 Dual D-Type Flip-Flop DIP-14 IC is a digital logic IC containing two independent D-type flip-flops. Each flip-flop provides data, clock, preset, clear, and complementary outputs, making it suitable for data storage, timing, frequency division, counters, and sequential logic circuits.

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Overview

7474 74HC74 74LS74 Dual D-Type Flip-Flop DIP-14 IC

Build reliable sequential logic circuits with the 7474 / 74HC74 / 74LS74 Dual D-Type Flip-Flop IC. This versatile 14-pin logic device contains two independent D-type flip-flops, making it useful for storing and synchronizing digital data.

Each flip-flop can capture the logic state present at its D input on the appropriate clock transition. The IC also provides asynchronous preset and clear inputs, along with complementary Q and Q̅ outputs, giving designers flexibility when building timing and control circuits.

The DIP-14 package is ideal for breadboard prototyping, educational electronics, through-hole PCB assembly, and digital logic experiments. The IC can be used to construct counters, registers, frequency dividers, data storage circuits, timing systems, and sequential logic designs.

With support for widely used 74-series logic families, the 7474 family is a practical choice for electronics students, hobbyists, makers, and digital circuit designers.

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7474 / 74HC74 / 74LS74 Dual D-Type Flip-Flop

The 7474 family is a digital logic device containing two D-type flip-flops in a single DIP-14 package. D-type flip-flops are fundamental building blocks for sequential logic and are widely used for storing and synchronizing binary data.

Dual D-Type Flip-Flops

The IC contains two independent flip-flop sections. Each section includes:

D (Data) input
Clock input
Preset input
Clear input
Q output
Q̅ complementary output

On the appropriate clock transition, the flip-flop captures the state of its D input and stores it at the output.

Preset and Clear Functions

The asynchronous preset and clear inputs allow the stored state to be set or reset independently of the clock signal. This makes the IC useful in initialization, reset, timing, and control circuits.

DIP-14 Package

The 14-pin DIP package is convenient for breadboard prototyping and through-hole PCB assembly. It is particularly suitable for students and hobbyists experimenting with digital logic circuits.

7474 vs 74HC74 vs 74LS74

These part numbers generally provide the same fundamental dual D-type flip-flop function but belong to different logic families:

74LS74 – Low-Power Schottky TTL logic family.
74HC74 – High-speed CMOS logic family.
7474 – Traditional 7400-series designation; exact specifications depend on the manufacturer and variant.

Operating voltage, input thresholds, propagation delay, output drive capability, and other electrical characteristics differ between families. Always use the datasheet for the exact IC variant.

Applications

The IC can be used for:

Digital data storage
Sequential logic
Counters
Frequency dividers
Shift registers
Timing circuits
Clocked logic
Digital control systems
State machines
Arduino interface circuits
Educational electronics
Breadboard logic experiments

Note: Pin configuration and electrical specifications should be verified against the datasheet for the exact 7474, 74HC74, or 74LS74 variant before connecting the IC.

Product Name	7474 / 74HC74 / 74LS74 Dual D-Type Flip-Flop IC
IC Function	Dual D-Type Flip-Flop
Number of Flip-Flops	2
Logic Type	Digital Sequential Logic
Data Input	D Input for Each Flip-Flop
Clock	Clock Input for Each Flip-Flop
Asynchronous Controls	Preset and Clear
Outputs	Q and Q̅ for Each Flip-Flop
Package	DIP-14
Applications	Data Storage, Counters, Registers, Frequency Dividers, Sequential Logic