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74LS21 Dual 4-in AND
74LS21
Texas Instrumentsic logic
The 74LS21 is a dual 4-input positive-AND gate IC used for digital logic operations.
In stock
Specifications
3- Package
- LCCC, CDIP, CFP, SOIC
- Operating Voltage
- 5V
- Temperature Range
- -55 to 125°C
Pinout
12Low source legibility.The original manufacturer datasheet for this part was difficult to read, so this pinout may be incomplete or imperfect. Always confirm against the specific manufacturer’s datasheet before wiring.
| Pin | Name | Functions | Notes |
|---|---|---|---|
| 1 | A1 | GPIO | Input A of the first AND gate |
| 2 | B1 | GPIO | Input B of the first AND gate |
| 3 | C1 | GPIO | Input C of the first AND gate |
| 4 | D1 | GPIO | Input D of the first AND gate |
| 5 | A2 | GPIO | Input A of the second AND gate |
| 6 | B2 | GPIO | Input B of the second AND gate |
| 7 | C2 | GPIO | Input C of the second AND gate |
| 8 | D2 | GPIO | Input D of the second AND gate |
| 9 | GND1 | GND | Ground for the first AND gate |
| 10 | GND2 | GND | Ground for the second AND gate |
| 11 | VCC | POWER | Supply voltage |
| 12 | VSS | GND | Ground for supply voltage |
Interactive pinout
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74LS21
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