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74LS688 8-bit Comparator
74LS688
Texas Instrumentsic logic
The 74LS688 is an 8-bit comparator designed for general-purpose digital comparison tasks.
In stock
Specifications
2- Operating Voltage
- 5.0V to 12.6V
- Supply Current
- 380µA max (typical) mA
Pinout
18Low 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 | VCC | POWER | Supply voltage |
| 2 | GND | GND | Ground reference |
| 3 | A0 | GPIO | Comparator input A0 |
| 4 | B0 | GPIO | Comparator input B0 |
| 5 | A1 | GPIO | Comparator input A1 |
| 6 | B1 | GPIO | Comparator input B1 |
| 7 | A2 | GPIO | Comparator input A2 |
| 8 | B2 | GPIO | Comparator input B2 |
| 9 | A3 | GPIO | Comparator input A3 |
| 10 | B3 | GPIO | Comparator input B3 |
| 11 | A4 | GPIO | Comparator input A4 |
| 12 | B4 | GPIO | Comparator input B4 |
| 13 | A5 | GPIO | Comparator input A5 |
| 14 | B5 | GPIO | Comparator input B5 |
| 15 | A6 | GPIO | Comparator input A6 |
| 16 | B6 | GPIO | Comparator input B6 |
| 17 | A7 | GPIO | Comparator input A7 |
| 18 | B7 | GPIO | Comparator input B7 |
Interactive pinout
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74LS688
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