74HC76 (JK Flip Flop)

Overview

The 74HC76 is a high-speed dual JK flip-flop integrated circuit featuring preset (PRE) and clear (CLR) functions. It operates on the high-speed silicon-gate CMOS technology, providing the low power dissipation of standard CMOS ICs while capable of driving 10 LS-TTL loads. Each flip-flop has independent J and K inputs, clock (CP), preset, clear, and complementary outputs (Q and Q̅). This makes it an ideal building block for digital systems requiring toggling, counting, or data storage operations.

Key Features

• Dual JK Flip-Flop: Contains two independent JK flip-flops in a single 16-pin package.
• Preset and Clear: Asynchronous preset and clear inputs for immediate state setting.
• Edge-Triggered: Clocked on the rising edge (positive edge) for precise timing.
• High-Speed: Propagation delay of typically 13 ns at 5V.
• Low Power: CMOS technology ensures minimal power consumption.
• Wide Operating Voltage: 2V to 6V, compatible with TTL and CMOS logic levels.
• Buffered Inputs: Standardized symmetrical output characteristics.
• ESD Protection: High immunity to electrostatic discharge.

Technical Specifications

• Logic Family: 74HC (High-Speed CMOS)
• Number of Flip-Flops: 2
• Input Type: Single-ended
• Output Type: Complementary (Q and Q̅)
• Triggering: Positive edge
• Supply Voltage: 2V to 6V
• Operating Temperature: -40°C to +125°C
• Propagation Delay (tpd): Typically 13 ns at 5V
• Package: 16-pin DIP (Dual In-line Package)
• Logic Diagram: Standard JK flip-flop with preset and clear

Applications & Use Cases

• Digital Counters: Frequency dividers, binary counters, and event counters.
• State Machines: Implementing finite state machines in control systems.
• Data Storage: Temporary storage of binary data in registers.
• Frequency Division: Divide clock frequencies in timing circuits.
• Toggle Circuits: Creating toggle switches for user interfaces.
• Educational Projects: Demonstrating sequential logic in university labs.
• Robotics: Controlling motor sequences and sensor feedback logic.

What's Included

• 1x 74HC76 DIP-16 IC

Compatibility

• Works with 5V microcontrollers like Arduino, ESP32, and PIC.
• Directly compatible with TTL logic levels when powered at 5V.
• Can be used in breadboards and PCBs.
• Suitable for interfacing with other 74HC series ICs.

MOKWN Recommendation

For makers and engineers in Egypt, the 74HC76 is an essential component for learning and building digital logic circuits. Its low power consumption and high speed make it a reliable choice for both hobbyist projects and professional designs. We recommend pairing it with a breadboard, jumper wires, and a 5V power supply for immediate experimentation. Whether you're a student at university or a hobbyist at home, this IC will help you master sequential logic.