SN74ALS112AD

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Gate
• Characteristics: Dual J-K Flip-Flop with Clear and Preset
• Package: 16-pin SOIC (Small Outline Integrated Circuit)
• Essence: The SN74ALS112AD is a dual J-K flip-flop IC that can store and manipulate binary information. It has two independent flip-flops, each with a J (data) and K (clock) input, as well as clear and preset inputs for resetting the flip-flop.
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Supply Voltage: 4.5V to 5.5V
• Logic Family: ALS (Advanced Low-Power Schottky)
• Operating Temperature Range: -40°C to 85°C
• Propagation Delay: 9 ns (typical)
• Output Current: ±24 mA
• Input Capacitance: 3 pF (typical)

Pin Configuration

The SN74ALS112AD has a 16-pin SOIC package with the following pin configuration:

+---+--+---+ CLR1 |1 +--+ 16| VCC J1 |2 15| CLK1 K1 |3 14| Q1 GND |4 13| Q1' K2 |5 12| J2 J2 |6 11| CLK2 CLR2 |7 10| Q2 PR2 |8 9| Q2' +----------+

Functional Features

• Dual J-K flip-flop with independent clock, data, clear, and preset inputs
• High-speed operation with low power consumption
• Asynchronous clear and preset inputs for resetting the flip-flop
• Edge-triggered clock inputs for synchronized data storage
• Complementary outputs (Q and Q') for each flip-flop

Advantages and Disadvantages

Advantages: - Dual flip-flop design allows for independent operation of two sets of binary information - Low power consumption makes it suitable for battery-powered devices - Fast propagation delay enables high-speed data processing - Clear and preset inputs provide flexibility in controlling the flip-flop state

Disadvantages: - Limited to a maximum supply voltage of 5.5V - Not suitable for applications requiring high output current (>24 mA) - Input capacitance may affect performance in high-frequency applications

Working Principles

The SN74ALS112AD operates based on the principles of J-K flip-flops. Each flip-flop can store one bit of binary information. The J and K inputs determine whether the flip-flop will toggle, hold, set, or reset its state based on the clock input. The clear and preset inputs allow for immediate resetting of the flip-flop to a known state.

Detailed Application Field Plans

The SN74ALS112AD is commonly used in various digital systems and applications, including:

1. Sequential Logic Circuits: Used as building blocks for designing counters, shift registers, and other sequential logic circuits.
2. Data Storage: Employed in memory units to store and retrieve binary information.
3. Control Systems: Utilized in control units to synchronize and manipulate signals for timing and sequencing purposes.
4. Digital Communication: Integrated into communication systems for encoding, decoding, and processing digital signals.
5. Microprocessors: Incorporated in microprocessor-based systems to handle data manipulation and control tasks.

Detailed and Complete Alternative Models

• SN74ALS112AN: Similar to SN74ALS112AD but available in a 16-pin DIP (Dual Inline Package) instead of SOIC.
• SN74LS112: Dual J-K flip-flop with similar functionality but operates at a lower speed and different logic family (LS - Low-Power Schottky).

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