Overview
The SN74LS04DR is a hex inverter IC manufactured by Texas Instruments. It belongs to the 74LS series of TTL (Transistor-Transistor Logic) integrated circuits, which are widely used in digital logic applications. This IC contains six independent inverters, each capable of inverting the logic state of its input signal. The SN74LS04DR is packaged in a 14-pin SOIC (Small Outline Integrated Circuit) format, making it suitable for surface-mount technology (SMT) applications. It is designed for use in a variety of digital systems, including industrial automation, consumer electronics, and educational projects.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Supply Voltage (VCC) | 4.75 to 5.25 | V | Typical 5V |
| Input Voltage (VIN) | 0 to VCC | V | |
| Output Current (IOH) | -0.4 | mA | High-level output |
| Output Current (IOL) | 8 | mA | Low-level output |
| Propagation Delay (tpd) | 9 to 15 | ns | Typical 10ns |
| Operating Temperature | 0 to 70 | °C | |
| Package | SOIC-14 | Surface-mount |
Key Features
- Six independent inverters in a single package.
- TTL-compatible inputs and outputs.
- Wide operating voltage range (4.75V to 5.25V).
- Low power consumption, suitable for battery-powered devices.
- High noise immunity, ensuring reliable operation in noisy environments.
- Compact SOIC-14 package for space-constrained applications.
Applications
The SN74LS04DR is widely used in digital logic circuits where signal inversion is required. Common applications include:
- Industrial Automation: Used in control systems for signal conditioning and logic inversion.
- Consumer Electronics: Found in devices such as televisions, audio equipment, and gaming consoles for digital signal processing.
- Educational Projects: Ideal for teaching digital logic principles in electronics courses.
- Oscillator Circuits: Used in conjunction with RC components to create simple oscillator circuits for clock generation.
- Signal Buffering: Acts as a buffer to isolate and invert signals in complex digital systems.
Q & A
1. What is the function of the SN74LS04DR?
The SN74LS04DR is a hex inverter IC that inverts the logic state of its input signals.
2. What is the operating voltage range of the SN74LS04DR?
The operating voltage range is 4.75V to 5.25V, with a typical value of 5V.
3. What is the propagation delay of the SN74LS04DR?
The propagation delay ranges from 9ns to 15ns, with a typical value of 10ns.
4. Can the SN74LS04DR be used in battery-powered devices?
Yes, its low power consumption makes it suitable for battery-powered applications.
5. What package does the SN74LS04DR come in?
It is available in a 14-pin SOIC (Small Outline Integrated Circuit) package.
6. Is the SN74LS04DR compatible with CMOS logic?
No, it is a TTL-compatible IC and may require level shifting for use with CMOS logic.
7. How many inverters are included in the SN74LS04DR?
It contains six independent inverters.
8. What are the typical applications of the SN74LS04DR?
It is used in industrial automation, consumer electronics, educational projects, oscillator circuits, and signal buffering.
9. What is the output current capability of the SN74LS04DR?
It can source -0.4mA in the high state and sink 8mA in the low state.
10. Is the SN74LS04DR suitable for high-noise environments?
Yes, it has high noise immunity, making it reliable in noisy environments.
