Overview
The SN74HCT04D is a hex inverter integrated circuit produced by Texas Instruments. It is a high-speed CMOS device that provides six independent inverters, each capable of converting a high logic level to a low logic level and vice versa. This component is widely used in digital logic circuits for signal inversion, buffering, and other logic operations. Its compatibility with low-power Schottky TTL (LSTTL) circuits and its low power consumption make it suitable for battery-powered and low-power applications. The SN74HCT04D is packaged in a 14-pin SOIC (Small Outline Integrated Circuit) format, making it easy to integrate into various electronic designs.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Supply Voltage | 4.5 to 5.5 | V | Operating range |
| Input Voltage | -0.5 to Vcc + 0.5 | V | Maximum ratings |
| Output Voltage | -0.5 to Vcc + 0.5 | V | Maximum ratings |
| Clamp Diode Current | ±20 | mA | Maximum ratings |
| Output Current | ±25 | mA | Per pin (output) |
| Power Dissipation | 600 | mW | Maximum ratings |
| Propagation Delay | 13 | ns | Typical at Vcc = 4.5V |
| Operating Temperature | -40 to 85 | °C | Range |
Key Features
- Six independent inverters in a single package.
- Compatible with low-power Schottky TTL (LSTTL) circuits.
- Low power consumption, ideal for battery-powered applications.
- High-speed performance with a typical propagation delay of 13 ns.
- ESD (Electrostatic Discharge) protection enhances reliability.
Applications
The SN74HCT04D is commonly used in digital logic circuits for signal inversion, buffering, and data selection. It is also employed in microcontroller I/O expansion, digital signal processing, and communication systems. Typical applications include:
- Signal inversion in digital logic design.
- Buffering to increase signal drive capability.
- Data selection circuits for multiplexing signals.
- I/O port expansion in microcontroller systems.
Q & A
1. What is the operating voltage range of the SN74HCT04D?
The operating voltage range is 4.5 to 5.5 volts.
2. How many inverters are included in the SN74HCT04D?
It includes six independent inverters.
3. What is the typical propagation delay of the SN74HCT04D?
The typical propagation delay is 13 nanoseconds at 4.5 volts.
4. Is the SN74HCT04D compatible with LSTTL circuits?
Yes, it is compatible with low-power Schottky TTL (LSTTL) circuits.
5. What is the maximum power dissipation of the SN74HCT04D?
The maximum power dissipation is 600 milliwatts.
6. Can the SN74HCT04D be used in battery-powered applications?
Yes, its low power consumption makes it suitable for battery-powered applications.
7. What is the package type of the SN74HCT04D?
It is packaged in a 14-pin SOIC (Small Outline Integrated Circuit) format.
8. What is the maximum output current per pin?
The maximum output current per pin is ±25 milliamperes.
9. Does the SN74HCT04D have ESD protection?
Yes, it includes ESD protection to enhance reliability.
10. What are the typical applications of the SN74HCT04D?
Typical applications include signal inversion, buffering, data selection, and microcontroller I/O expansion.
