74LS00 Quad 2-Input NAND Gate
Package PDIP, SOIC Series 74LS
74LS00 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. The 74LS00 is Quad 2-Input NAND Gate IC that contains four independent, 2-input NAND gates. 74LS00 perform the Boolean functions (AND Function) Y = A .B or (OR Function)Y = A + B in positive logic.
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
0.pdf
74LS00 features
- Four Independent NAND Gates
- Standard Pin Configuration
- Also Available in SMD Type
- Operating Temperature to 70°C
- Standard TTL Switching Voltages
74LS00 pinout
| Pin | Name | Description |
|---|---|---|
| 1 | A1 | NAND Gate 1 Input 1 |
| 2 | B1 | NAND Gate 1 Input 2 |
| 3 | C1 | NAND Gate 1 Output |
| 4 | A2 | NAND Gate 2 Input 2 |
| 5 | B2 | NAND Gate 2 Input 2 |
| 6 | C2 | NAND Gate 2 Output |
| 7 | GND | Ground |
| 8 | C4 | NAND Gate 4 Output 4 |
| 9 | A4 | NAND Gate 4 Input 2 |
| 10 | B4 | NAND Gate 4 Input 2 |
| 11 | C3 | NAND Gate 3 Output |
| 12 | A3 | NAND Gate 3 Input 2 |
| 13 | B3 | NAND Gate 3 Input 2 |
| 14 | VCC | Positive Supply |
74LS00 applications
- AV Receivers
- Portable Audio Docks
- Blu-Ray Players
- Home Theater
- MP3 Players or Recorders
- Personal Digital Assistants (PDAs)
Application circuit
More about 74LS00
74LS00 Circuit
Below is a simple circuit of NAND gate with two inputs B1 & B2 and one LED is connected at the output to verify the results of logic ic.
74LS00 Alternative Equivalent
74LS03, 74LS10, 74LS20, 74LS30
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