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74LS640 Octal Bus Transceiver (inv)
74LS640
Texas Instrumentsic logic
The SN54LS640 is a bidirectional bus transceiver with 3-state outputs, used for data transfer on digital buses.
In stock
Specifications
4- Operating Voltage
- 5V (max) / 2.4V (min) V
- Supply Current
- 10mA mA
- Interface
- TTL compatible
- Temperature Range
- -55°C to 125°C °C
Pinout
16Low 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 | D0 | GPIO | Data input/output |
| 3 | OE | GPIO | Output enable |
| 4 | GND | GND | Ground reference |
| 5 | D1 | GPIO | Data input/output |
| 6 | D2 | GPIO | Data input/output |
| 7 | D3 | GPIO | Data input/output |
| 8 | D4 | GPIO | Data input/output |
| 9 | D5 | GPIO | Data input/output |
| 10 | D6 | GPIO | Data input/output |
| 11 | D7 | GPIO | Data input/output |
| 12 | S0 | GPIO | Select line 0 |
| 13 | S1 | GPIO | Select line 1 |
| 14 | S2 | GPIO | Select line 2 |
| 15 | S3 | GPIO | Select line 3 |
| 16 | GND | GND | Ground reference |
Interactive pinout
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74LS640
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