Description
The 74LS20 is a high-speed TTL Dual 4-Input NAND Gate. Each gate performs the logic NAND function: the output is LOW only if all four inputs are HIGH; if any single input is LOW, the output will be HIGH. As part of the 74LS (Low-Power Schottky) series, this IC offers a balanced trade-off between power consumption and propagation delay, making it a classic choice for combinational logic design.
This device contains two independent 4-input NAND gates, allowing for efficient space usage on a circuit board when you need to perform wide-input logic operations. It is commonly used to decode addresses, combine multiple status signals into a single interrupt, or act as a primary building block in complex logic networks.
Note: Product images are shown for reference only. The actual product may vary in appearance, manufacturer marking, or logo depending on stock availability. For complete electrical characteristics, propagation delay times, and pin configuration, please refer to the datasheet available in the Attachment section.
Features
- Dual (2) independent 4-input NAND gates
- Standard TTL (74LS) logic levels
- High noise immunity
- Reliable low-power Schottky performance
- DIP-14 through-hole package
Benefits
- Allows for logic combining of up to four signals per gate
- Proven, industry-standard logic series
- Small package footprint for basic logic integration
- Compatible with a wide range of TTL-based digital systems
Applications
- Digital Logic Synthesis
- Address Decoding
- Signal Gating and Combining
- Sequential Logic Design
- General Purpose Digital Control
Package Includes
- 1 x 74LS20 Dual 4-Input NAND Gate IC (DIP-14 Package)
Specifications
| Parameter | Specification |
|---|---|
| Product Name | 74LS20 |
| Device Type | Dual 4-Input NAND Gate |
| Logic Family | 74LS (Low-Power Schottky TTL) |
| Package / Case | DIP-14 |
| Mounting Type | Through-Hole |
| Shipping Weight | 0.001 kg |
| Shipping Dimensions | 4 x 4 x 1 cm |







