74LS01 Quad 2-input NAND Gate (Open Collector)
Package PDIP, SOIC Series 74LS
74LS01 overview
The 74LS series of integrated circuits (ICs) was one of the most popular logic families of transistor-transistor logic (TTL) logic chips. 74LS series is a bipolar, low-power Schottky IC. 74LS01 Quad 2-input NAND Gate contains four independent 2-input NAND gates.
The open-collector outputs require pull-up resistors to perform correctly. They may be connected to other open-collector outputs to implement active-low wired-OR or active-high wired-AND functions. Open-collector devices are often used to generate higher VOH levels.
Key specifications
Supply Voltage
4.75 - 5.25Vdc
Maximum Clock Frequency
40Mhz
Power Dissipation
2mW/gate @100kHz
Minimum Output Current
8mA
Propagation Delay
10nS
Fan Out (TTL Loads)
20
Datasheet
1.pdf
74LS01 features
- Four Independent NAND Gates
- Standard Pin Configuration
- Also Available in SMD Type
- Operating Temperature to 70°C
- Standard TTL Switching Voltages
74LS01 pinout
| Pin | Name | Description |
|---|---|---|
| 1 | C1 | NAND Gate 1 Output |
| 2 | A1 | NAND Gate 1 Input 1 |
| 3 | B1 | NAND Gate 1 Input 2 |
| 4 | C2 | NAND Gate 2 Output 2 |
| 5 | A2 | NAND Gate 2 Input 2 |
| 6 | B2 | NAND Gate 2 Input 2 |
| 7 | GND | Ground |
| 8 | A3 | NAND Gate 3 Input 3 |
| 9 | B3 | NAND Gate 3 Input 3 |
| 10 | C3 | NAND Gate 3 Output 3 |
| 11 | A4 | NAND Gate 4 Input 4 |
| 12 | B4 | NAND Gate 4 Input 4 |
| 13 | C4 | NAND Gate 4 Output 4 |
| 14 | VCC | Positive Supply |
74LS01 applications
- Burglar alarm
- Freezer warning buzzer
- A push-button lock
More about 74LS01
74LS01 Alternative Equivalent
74LS00, 74LS03, 74LS10
Download 74LS01 Quad 2-input NAND Gate (Open Collector) from the link given below.
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