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The HD74HC112P is a dual negative-edge-triggered JK flip-flop integrated circuit manufactured by HIT (Hitachi). Below are its specifications, descriptions, and features:

Specifications:

• Manufacturer: HIT (Hitachi)
• Series: 74HC
• Technology: High-Speed CMOS (HC)
• Package: DIP-16 (Plastic Dual In-Line Package)
• Supply Voltage Range: 2V to 6V
• Operating Temperature Range: -40°C to +85°C
• High-Level Input Voltage (VIH): 3.15V (min) @ VCC = 4.5V
• Low-Level Input Voltage (VIL): 1.35V (max) @ VCC = 4.5V
• Propagation Delay: 20ns (typ) @ VCC = 5V, CL = 50pF
• Output Current (IO): ±5.2mA @ VCC = 4.5V

Descriptions:

• The HD74HC112P contains two independent JK flip-flops with individual J, K, Clock (CLK), Preset (PR), and Clear (CLR) inputs.
• Each flip-flop changes state on the negative (falling) edge of the clock pulse.
• Asynchronous preset (PR) and clear (CLR) inputs override the clock and data inputs.
• Suitable for counters, registers, and control applications in digital circuits.

Features:

• Dual JK Flip-Flops in a single IC
• Negative-Edge Triggered clock input
• Asynchronous Preset and Clear for direct control
• Wide Operating Voltage Range (2V to 6V)
• Low Power Consumption (typical CMOS power dissipation)
• High Noise Immunity
• Compatible with TTL Inputs

This IC is commonly used in sequential logic circuits, frequency division, and data storage applications.

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