74LS76 Dual JK Flip-Flop Datasheet, Pinout, Features & Applications

31 - Jan - 2021

Electronic Components

jameswilson

0 Comments

2.5K Views

700

Shares: 691

TEP , The Engineering Projects , TEP Key Points

dept

TEP , The Engineering Projects , Electrical

TEP , The Engineering Projects , Electrical Shadow

Electrical Engineering

Electronics Engineering

Mechatronics Engineering

Hi Folks! Hope you’re well today. Happy to see you around. Today, I’ll walk you through the Introduction to 74LS76.

The 74LS76 comes with separate J, K, clock pulse, direct clear inputs, and direct set. These flip-flops are developed in such a way when the clock is set HIGH, data will be received enabling inputs.

I suggest you buckle up as I’ll detail the complete Introduction to 74LS76 covering datasheet, pinout, features, alternatives, and applications.

Introduction to 74LS76

The 74LS76 comes with separate J, K, clock pulse, direct clear inputs, and direct set. These flip-flops are developed in such a way when the clock is set HIGH, data will be received enabling inputs.
This IC contains two JK flip-flops and each flip-flop can be utilized individually for the required applications.

These flip-flops are mainly employed in control registers, shift registers, and storage registers and are termed as latching devices due to their ability to remember every single bit of data.
These devices latch the output based on the stored binary data.
It is important to note more than one flip-flop can be combined in series for storing a small amount of data as an EEPROM.

The operating voltage range of this dual JK flip-flop is 2V to 6V and comes in 14-pin PDIP, GDIP and PDSO packages.
This JK flip-flop is termed the best pick for practical applications as it possesses stable output for all types of inputs.
The J and K inputs logic levels will be performed as per the Truth Table as long as minimum set-up times are taken into observation.
Know that the Input data is converted to the outputs when the HIGH-to-LOW clock transition occurs.
This IC houses two JK flip-flops and is powered by +5V.

74LS76 Datasheet

Before you apply this component to your electrical project, it’s wise to scan through the datasheet of the component that highlights the main characteristics of the chip. Click the link below to download the datasheet of 74LS76

74LS76 Pinout

The following is the pinout diagram of 74LS76.

The following table represents the pin description of each pin integrated on the chip.

Pin Description of 74LS76 Dual JK Flip-Flop
Pin No.	Pin Description	Pin Name
1,6	These pins should be provided with a clock pulse for the flip flop	Clock-1/ Clock-2
2,7	Preset input pins drive Flip Flop to a set state.	Preset-1 / Preset-2
16,12	Input pin of the Flip Flop	1K/ 2K
4,9	Another Input pin of the Flip Flop	1J / 2J
14,10	The inverted output pin of Flip Flop	1Q(bar) / 2Q (bar)
15,11	Output Pin of the Flip Flop	1Q / 2Q
3,8	Clear input pin drives Flip Flop to a reset state.	1 CLR (bar)/ 2 CLR (bar)
13	Connected to the ground	Ground
5	Powers the IC with 5V	Power (+Vs)

74LS76 Truth Table

The clear and preset are termed as the asynchronous active-low inputs. When they are set LOW, they result in overriding the J-K and clock inputs allow the output to remain in the steady-state levels. The truth table of 74LS76 is shown below.

74LS76 Features

The main features of the chip are described below.

Operating Voltage Range = 2V to 6V
Low-Level Output Voltage Max. = 0.25V
High-Level Output Voltage Min. = 3.5 V
Dual JK Flip Flop Chip

Operating Temperature Range = -55 to -125°C
Low-Level Input Voltage Max. = 0.8 V
High-Level Input Voltage Min. = 2 V
Available Packages = 14-pin PDIP, GDIP, PDSO

74LS76 Applications

The following are the main applications of flip-flop 74LS76.

Employed in Memory/Control Registers
Used in Shift Registers
Used in Latching devices
Incorporated in EEPROM circuits

That’s all for today. Hope you’ve got a clear insight into the Introduction to 74LS76. If you have any questions, you can pop your comment in the section below, I’d love to help you the best way I can. Feel free to share your valuable feedback and suggestions around the content we share so we keep producing quality content tailored to your exact needs and requirements. Thank you for reading the article.