Overview
The SN74HC08DR, produced by Texas Instruments, is a quadruple 2-input AND gate integrated circuit. This device contains four independent AND gates, each performing the Boolean function Y = A ● B in positive logic. It is part of the HC (High-Speed CMOS) logic family, known for its wide operating voltage range and low power consumption.
Key Specifications
| Parameter | Value |
|---|---|
| Package | SOIC (14 pins) |
| Operating Temperature Range | –40°C to +85°C |
| Operating Voltage Range | 2 V to 6 V |
| Output Drive Capability | Up to 10 LSTTL loads |
| Supply Current | Typically 20 µA |
| Propagation Delay | Typically 13 ns |
| Input Current | Maximum 1 µA |
| Output Voltage | VOH: 4.4 V (min) @ IOH = –20 µA, VOL: 0.1 V (max) @ IOL = 20 µA |
Key Features
- Buffered inputs
- Wide operating voltage range: 2 V to 6 V
- Wide operating temperature range: –40°C to +85°C
- Supports fanout up to 10 LSTTL loads
- Significant power reduction compared to LSTTL logic ICs
- Balanced CMOS push-pull outputs
Applications
- Combining power good signals
- Enabling digital signals
- General logic functions in digital circuits
Q & A
- What is the function of the SN74HC08DR? The SN74HC08DR contains four independent 2-input AND gates, each performing the Boolean function Y = A ● B in positive logic.
- What is the operating voltage range of the SN74HC08DR? The operating voltage range is 2 V to 6 V.
- What is the operating temperature range of the SN74HC08DR? The operating temperature range is –40°C to +85°C.
- How many LSTTL loads can the SN74HC08DR drive? It can drive up to 10 LSTTL loads.
- What is the typical propagation delay of the SN74HC08DR? The typical propagation delay is 13 ns.
- What are the key features of the SN74HC08DR? Key features include buffered inputs, wide operating voltage and temperature ranges, support for up to 10 LSTTL loads, and significant power reduction compared to LSTTL logic ICs.
- What are some common applications of the SN74HC08DR? Common applications include combining power good signals, enabling digital signals, and general logic functions in digital circuits.
- What is the package type of the SN74HC08DR? The package type is SOIC (14 pins).
- How much current does the SN74HC08DR typically consume? The supply current is typically 20 µA.
- What is the input current of the SN74HC08DR? The maximum input current is 1 µA.
