Overview
The SN74LS112AN3 is a dual negative-edge-triggered JK flip-flop integrated circuit (IC) manufactured by Texas Instruments. This device is part of the 74LS series, which is widely recognized for its low-power Schottky (LS) technology. The SN74LS112AN3 is designed for applications requiring reliable and efficient sequential logic operations. It is particularly suited for use in digital systems, including counters, shift registers, and control circuits. Its market positioning targets engineers and designers working on industrial automation, consumer electronics, and communication systems. The product stands out for its robust performance, low power consumption, and compatibility with TTL logic levels.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Logic Type | JK Flip-Flop | - | Dual, negative-edge-triggered |
| Number of Circuits | 2 | - | Dual flip-flop |
| Supply Voltage | 4.75 to 5.25 | V | Standard TTL levels |
| Operating Temperature | 0 to 70 | °C | Commercial range |
| Propagation Delay | 15 | ns | Typical value |
| Package / Case | PDIP-16 | - | Plastic Dual In-Line Package |
| Mounting Type | Through Hole | - | - |
| Input Logic Level | TTL | - | Compatible with TTL logic |
| Output Logic Level | TTL | - | Compatible with TTL logic |
| Current - Quiescent (Max) | 8 | mA | Low power consumption |
Key Features
- Dual JK Flip-Flops: Contains two independent JK flip-flops in a single package, enabling compact and efficient designs.
- Negative-Edge Triggering: Ensures reliable operation with precise timing control.
- Low Power Consumption: Utilizes Schottky technology for reduced power dissipation.
- TTL Compatibility: Fully compatible with TTL logic levels, ensuring seamless integration into existing systems.
- Wide Operating Temperature Range: Suitable for commercial applications with an operating temperature range of 0°C to 70°C.
Applications
The SN74LS112AN3 is versatile and finds applications in various fields, including:
- Digital Counters: Used in binary counters for sequential counting operations.
- Shift Registers: Ideal for data storage and transfer in shift register circuits.
- Control Circuits: Employed in control logic for timing and sequencing operations.
- Industrial Automation: Suitable for automation systems requiring reliable flip-flop operations.
- Consumer Electronics: Used in devices like calculators, digital clocks, and other electronic gadgets.
Q & A
1. What is the function of the SN74LS112AN3?
The SN74LS112AN3 is a dual JK flip-flop IC used for sequential logic operations, such as counting, data storage, and control.
2. What is the operating voltage range?
The operating voltage range is 4.75V to 5.25V, which is standard for TTL logic.
3. Is this IC compatible with CMOS logic?
No, it is designed for TTL logic levels and is not directly compatible with CMOS logic.
4. What is the propagation delay?
The typical propagation delay is 15ns, ensuring fast operation in digital circuits.
5. Can it operate in harsh environments?
No, it is designed for commercial applications with an operating temperature range of 0°C to 70°C.
6. What package does it come in?
It is available in a PDIP-16 (Plastic Dual In-Line Package) for through-hole mounting.
7. How many flip-flops are included?
The IC contains two independent JK flip-flops.
8. What is the quiescent current?
The maximum quiescent current is 8mA, indicating low power consumption.
9. Is it suitable for high-speed applications?
Yes, with a propagation delay of 15ns, it is suitable for many high-speed digital applications.
10. Where can I find the datasheet?
The datasheet is available on the Texas Instruments official website or through authorized distributors like Digi-Key and Mouser.
