Overview
The SN7400D, manufactured by Texas Instruments, is a quad 2-input positive NAND gate integrated circuit (IC) belonging to the 7400 logic family. This IC is widely used in digital logic applications due to its reliability and performance. Packaged in a 14-pin SOIC (Small Outline Integrated Circuit) format, it is designed for surface mount technology (SMT). The SN7400D is ideal for applications requiring logic gate functionality, such as signal processing, control systems, and embedded systems. Its market positioning targets engineers and designers in industrial automation, consumer electronics, and automotive electronics sectors.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Manufacturer | Texas Instruments | - | - |
| Logic Type | NAND Gate | - | Quad 2-input |
| Supply Voltage | 4.75 ~ 5.25 | V | - |
| Output Current | 16 | mA | Low state |
| Propagation Delay | 22 | ns | @ 5V, 15pF |
| Operating Temperature | 0 ~ 70 | °C | - |
| Package | 14-SOIC | - | Surface Mount |
| Input Count | 2 | - | Per gate |
| Circuit Count | 4 | - | - |
| Logic Level (Low) | 0.8 | V | - |
| Logic Level (High) | 2 | V | - |
Key Features
- Quad 2-input NAND gates for versatile logic operations.
- Wide operating voltage range (4.75V to 5.25V) ensures compatibility with standard TTL logic levels.
- Low propagation delay of 22ns enhances performance in high-speed applications.
- Surface mount packaging (14-SOIC) for compact and efficient PCB designs.
- Robust design suitable for industrial and automotive environments.
Applications
The SN7400D is commonly used in digital systems for logic gate implementation. Its applications include:
- Industrial Automation: Control systems, signal processing, and data acquisition.
- Consumer Electronics: Embedded systems, gaming consoles, and home appliances.
- Automotive Electronics: Engine control units, infotainment systems, and safety modules.
- Telecommunications: Signal routing and logic control in communication devices.
Q & A
1. What is the logic type of the SN7400D?
The SN7400D is a quad 2-input positive NAND gate.
2. What is the operating voltage range?
The operating voltage range is 4.75V to 5.25V.
3. What is the propagation delay of the SN7400D?
The propagation delay is 22ns at 5V with a 15pF load.
4. What is the package type of the SN7400D?
It is packaged in a 14-pin SOIC format.
5. What is the maximum operating temperature?
The maximum operating temperature is 70°C.
6. What is the output current in the low state?
The output current in the low state is 16mA.
7. Is the SN7400D RoHS compliant?
Yes, the SN7400D is RoHS compliant.
8. What are the typical applications of the SN7400D?
Typical applications include industrial automation, consumer electronics, and automotive systems.
9. How many logic gates are included in the SN7400D?
The SN7400D contains four independent NAND gates.
10. What is the logic level for a high input?
The logic level for a high input is 2V.
