Overview
The SN7400DG4 is a quad 2-input positive NAND gate integrated circuit (IC) manufactured by Texas Instruments. This device belongs to the 7400 series of logic gates, widely used in digital electronics for implementing basic logic functions. The SN7400DG4 is housed in a 14-pin SOIC (Small Outline Integrated Circuit) package, making it suitable for surface-mount technology (SMT) applications. It is designed for use in a variety of digital systems, including computing, industrial control, and consumer electronics. Its market positioning targets engineers and designers working on logic circuit design, offering reliability and compatibility with standard logic families.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Logic Type | NAND Gate | - | Quad 2-input |
| Supply Voltage | 4.75 to 5.25 | V | Standard TTL voltage range |
| Input Voltage (High) | 2 | V | Minimum |
| Input Voltage (Low) | 0.8 | V | Maximum |
| Output Current (High) | 400 | µA | Maximum |
| Output Current (Low) | 16 | mA | Maximum |
| Propagation Delay | 22 | ns | @ 5V, 15pF |
| Operating Temperature | 0 to 70 | °C | Industrial range |
| Package | 14-SOIC | - | Surface mount |
| RoHS Compliance | Yes | - | Environmentally friendly |
Key Features
- Quad 2-Input NAND Gates: Provides four independent NAND gates in a single package, reducing board space and complexity.
- Wide Operating Voltage: Supports a supply voltage range of 4.75V to 5.25V, ensuring compatibility with TTL logic levels.
- High-Speed Operation: Features a propagation delay of 22ns, making it suitable for high-speed digital applications.
- Surface-Mount Package: The 14-SOIC package is ideal for modern PCB designs, enabling compact and efficient layouts.
- RoHS Compliant: Meets environmental standards, making it suitable for eco-conscious designs.
Applications
The SN7400DG4 is widely used in various digital systems, including:
- Computing: Logic circuit design in microprocessors and microcontrollers.
- Industrial Control: Automation systems and control logic implementation.
- Consumer Electronics: Digital signal processing and logic operations in devices like TVs and gaming consoles.
- Telecommunications: Signal processing and logic gates in communication systems.
- Automotive Electronics: Logic functions in vehicle control systems.
Q & A
1. What is the function of the SN7400DG4?
The SN7400DG4 is a quad 2-input NAND gate IC, which performs the Boolean NAND function on two input signals for each of its four gates.
2. What is the operating voltage range of the SN7400DG4?
The device operates within a supply voltage range of 4.75V to 5.25V, typical for TTL logic.
3. What is the maximum propagation delay of the SN7400DG4?
The maximum propagation delay is 22ns at 5V with a 15pF load.
4. Is the SN7400DG4 RoHS compliant?
Yes, the SN7400DG4 is RoHS compliant, adhering to environmental standards.
5. What package does the SN7400DG4 come in?
It is available in a 14-pin SOIC (Small Outline Integrated Circuit) package.
6. What is the operating temperature range of the SN7400DG4?
The device operates within a temperature range of 0°C to 70°C.
7. Can the SN7400DG4 be used in automotive applications?
Yes, it can be used in automotive electronics for logic control functions.
8. What is the output current capability of the SN7400DG4?
The high-level output current is 400µA, and the low-level output current is 16mA.
9. How many NAND gates are included in the SN7400DG4?
The IC contains four independent 2-input NAND gates.
10. Is the SN7400DG4 suitable for high-speed applications?
Yes, with a propagation delay of 22ns, it is suitable for high-speed digital systems.
