Overview
The SN74HCT08DRE4 is a quadruple 2-input positive-AND gate integrated circuit manufactured by Texas Instruments. This component is part of the 74HCT series, which is known for its compatibility with TTL (Transistor-Transistor Logic) voltage levels. The device contains four independent 2-input AND gates, each performing the Boolean function Y = A • B in positive logic. It is widely used in digital logic circuits due to its robust specifications and reliability.
Key Specifications
| Parameter | Value |
|---|---|
| Package | 14-SOIC (0.154", 3.90mm Width) |
| Logic Type | AND Gate |
| Number of Circuits | 4 |
| Number of Inputs | 2 |
| Voltage - Supply | 4.5 V ~ 5.5 V |
| Current - Quiescent (Max) | 20µA |
| Current - Output High, Low | ±4mA |
| Logic Level - Low | 0.8V |
| Logic Level - High | 2V |
| Max Propagation Delay @ V, Max CL | 22ns @ 5.5V, 50pF |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Surface Mount |
Key Features
- Operating voltage range of 4.5V to 5.5V, making it compatible with TTL logic levels.
- Outputs can drive up to 10 LSTTL loads, ensuring robust output capabilities.
- Low power consumption with a maximum quiescent current of 20µA.
- Typical propagation delay of 13ns, and transition time of 8ns at 5.5V.
- Low input current of 1µA max, reducing power consumption and heat generation.
- TTL-voltage compatible inputs, enhancing compatibility with other TTL-based systems.
Applications
The SN74HCT08DRE4 is versatile and can be used in a variety of digital logic circuits, including:
- Digital logic gates and inverters in electronic devices.
- Microcontroller and microprocessor systems requiring AND gate functionality.
- Automated control systems and industrial automation.
- Communication equipment and networking devices.
- Consumer electronics such as calculators, timers, and other digital devices.
Q & A
- What is the SN74HCT08DRE4 used for? The SN74HCT08DRE4 is used as a quadruple 2-input positive-AND gate in digital logic circuits.
- What is the operating voltage range of the SN74HCT08DRE4? The operating voltage range is 4.5V to 5.5V.
- How many AND gates are included in the SN74HCT08DRE4? The device contains four independent 2-input AND gates.
- What is the maximum propagation delay of the SN74HCT08DRE4? The maximum propagation delay is 22ns at 5.5V and 50pF load.
- What is the operating temperature range of the SN74HCT08DRE4? The operating temperature range is -40°C to 85°C.
- Is the SN74HCT08DRE4 RoHS compliant? Yes, the SN74HCT08DRE4 is RoHS compliant and free of Sb/Br.
- What is the package type of the SN74HCT08DRE4? The package type is 14-SOIC (0.154", 3.90mm Width).
- How much current does the SN74HCT08DRE4 consume in quiescent state? The maximum quiescent current is 20µA.
- Can the SN74HCT08DRE4 drive LSTTL loads? Yes, it can drive up to 10 LSTTL loads.
- What is the typical transition time of the SN74HCT08DRE4? The typical transition time is 8ns at 5.5V.
