The HD74LS107P is a dual JK flip-flop with clear belonging to the Low-power Schottky TTL (LS-TTL) logic family. Each flip-flop has individual J, K, clock (CLK), and clear (CLR) inputs. The flip-flops change state on the negative-going transition of the clock pulse. The clear input asynchronously resets the flip-flop, forcing the Q output LOW regardless of the clock or data inputs.

Applications

• Counters
• Shift registers
• Control circuits
• Frequency dividers
• Memory storage

Features

• Dual JK flip-flops: Contains two independent JK flip-flops.
• Negative-edge triggered: Changes state on the falling edge of the clock.
• Asynchronous clear: Resets the flip-flop independently of the clock.
• Low power consumption: Offers lower power consumption compared to standard TTL logic.
• High noise immunity: Provides reliable operation in noisy environments.
• High fan-out: Can drive multiple loads without significant signal degradation.

Benefits

• Simplified implementation of counters, shift registers, and control circuits.
• Reduced power consumption compared to standard TTL devices.
• Enhanced system reliability with high noise immunity.
• Flexible design options with individual J, K, clock, and clear inputs.
• Cost-effective solution for implementing flip-flop functions.

Additional Details

The HD74LS107P is available in a DIP (Dual In-line Package). The clear input (CLR) is active LOW, meaning that the flip-flop is reset when CLR is LOW and operates normally when CLR is HIGH. The JK inputs determine the next state of the flip-flop according to the following truth table: J=0, K=0: No change; J=0, K=1: Q=0; J=1, K=0: Q=1; J=1, K=1: Toggle. The device is commonly used in applications requiring sequential logic, such as counters, shift registers, and control circuits. Proper decoupling with capacitors close to the power supply pins is recommended. Refer to the datasheet for detailed electrical characteristics, timing diagrams, and application notes. The device provides a reliable and versatile solution for implementing flip-flop functions in digital systems.