Overview
The SN74LS393NG4 is a dual 4-bit binary counter produced by Texas Instruments. This IC belongs to the LS (Low-Power Schottky) family, known for its low power consumption and high-speed operation. It is widely used in digital logic applications for counting, frequency division, and timing. The SN74LS393NG4 is designed for engineers and developers working in industries such as industrial automation, consumer electronics, and telecommunications. Its compact design, reliability, and ease of integration make it a competitive choice for digital circuit design.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Supply Voltage (VCC) | 4.75 to 5.25 | V | Typical 5V operation |
| Operating Temperature | 0 to 70 | °C | Commercial grade |
| Propagation Delay | 15 | ns | Typical value |
| Power Dissipation | 100 | mW | Maximum value |
| Output Current (High) | -0.4 | mA | Sink current |
| Output Current (Low) | 8 | mA | Source current |
| Logic Family | LS | - | Low-Power Schottky |
| Package Type | PDIP-14 | - | Plastic Dual In-Line Package |
| Counters | Dual 4-bit | - | Independent counters |
| Reset Function | Asynchronous | - | Active LOW |
Key Features
- Dual 4-bit binary counters with independent clock inputs.
- Asynchronous master reset for quick counter initialization.
- Low power consumption typical of the LS family.
- High-speed operation with a typical propagation delay of 15 ns.
- Wide operating voltage range (4.75V to 5.25V).
- Available in a 14-pin PDIP package for easy integration.
Applications
The SN74LS393NG4 is commonly used in a variety of digital logic applications, including:
- Frequency Division: Used to divide clock signals in digital circuits.
- Timing Circuits: Employed in timing and delay generation applications.
- Counting Applications: Ideal for event counting in industrial automation and consumer electronics.
- Digital Signal Processing: Utilized in DSP systems for data manipulation and control.
- Telecommunications: Applied in signal processing and frequency synthesis.
Q & A
1. What is the operating voltage range of the SN74LS393NG4?
The operating voltage range is 4.75V to 5.25V, with a typical value of 5V.
2. What is the propagation delay of this IC?
The typical propagation delay is 15 ns.
3. Does the SN74LS393NG4 have a reset function?
Yes, it features an asynchronous master reset that is active LOW.
4. What is the package type of the SN74LS393NG4?
It is available in a 14-pin PDIP (Plastic Dual In-Line Package).
5. Can this IC be used for frequency division?
Yes, it is commonly used for frequency division in digital circuits.
6. What is the maximum power dissipation of the SN74LS393NG4?
The maximum power dissipation is 100 mW.
7. Is the SN74LS393NG4 suitable for high-speed applications?
Yes, it is designed for high-speed operation with a typical propagation delay of 15 ns.
8. What is the output current capability of this IC?
It can sink -0.4 mA and source 8 mA.
9. What is the operating temperature range?
The operating temperature range is 0°C to 70°C.
10. Are the counters in the SN74LS393NG4 independent?
Yes, it features dual 4-bit binary counters with independent clock inputs.
