Overview
The SN74LS90NE4 is a decade counter integrated circuit (IC) manufactured by Texas Instruments. It is part of the 74LS series of logic devices, known for their reliability and versatility in digital circuit design. The SN74LS90NE4 is specifically designed to function as a divide-by-ten counter, making it ideal for applications requiring frequency division or counting operations. Its compact design and low power consumption make it suitable for a wide range of electronic systems, including industrial automation, consumer electronics, and educational projects. The IC is particularly valued for its ease of integration and robust performance in digital counting applications.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Supply Voltage (VCC) | 4.75 to 5.25 | V | Typical 5V |
| Operating Temperature | 0 to 70 | °C | Commercial range |
| Logic Family | LS | - | Low-power Schottky |
| Number of Bits | 4 | - | Decade counter |
| Package | PDIP-14 | - | Plastic Dual In-line Package |
| Output Type | TTL | - | Transistor-Transistor Logic |
| Maximum Clock Frequency | 32 | MHz | Typical |
| Propagation Delay | 15 | ns | Typical |
| Power Dissipation | 22 | mW | Typical |
Key Features
- Decade Counter Functionality: Provides divide-by-ten counting capability, ideal for frequency division applications.
- Low Power Consumption: Designed for energy efficiency, making it suitable for battery-powered devices.
- Compact Design: Packaged in a PDIP-14 form factor for easy integration into various circuits.
- Wide Operating Voltage Range: Supports 4.75V to 5.25V, ensuring compatibility with standard TTL logic levels.
- High-Speed Operation: Capable of handling clock frequencies up to 32 MHz, suitable for high-performance applications.
Applications
The SN74LS90NE4 is widely used in digital counting and frequency division applications. It is commonly employed in industrial automation systems for event counting and timing control. In consumer electronics, it is used in devices like digital clocks and frequency counters. The IC is also popular in educational projects for teaching digital logic and counter circuits. Additionally, it finds applications in telecommunication systems for signal processing and frequency synthesis.
Q & A
1. What is the primary function of the SN74LS90NE4?
The SN74LS90NE4 is a decade counter IC designed for divide-by-ten counting operations.
2. What is the operating voltage range of the SN74LS90NE4?
The operating voltage range is 4.75V to 5.25V, with a typical value of 5V.
3. What is the maximum clock frequency supported by this IC?
The maximum clock frequency is 32 MHz.
4. What type of package does the SN74LS90NE4 come in?
It is available in a PDIP-14 (Plastic Dual In-line Package) form factor.
5. Is the SN74LS90NE4 suitable for high-speed applications?
Yes, it supports high-speed operation with a typical propagation delay of 15 ns.
6. Can the SN74LS90NE4 be used in battery-powered devices?
Yes, its low power consumption makes it suitable for battery-powered applications.
7. What is the logic family of the SN74LS90NE4?
It belongs to the LS (Low-power Schottky) logic family.
8. What are the typical applications of this IC?
Typical applications include frequency division, digital counting, and timing control in industrial, consumer, and educational systems.
9. What is the operating temperature range of the SN74LS90NE4?
The operating temperature range is 0°C to 70°C, suitable for commercial applications.
10. Is the SN74LS90NE4 compatible with TTL logic levels?
Yes, it is fully compatible with standard TTL logic levels.
