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74HCT540 Octal Buffer (inv)
74HCT540
Texas Instrumentsic logic
The SN74HCT540 is an octal buffer with 3-state outputs that can drive up to 15 LSTTL loads and has low power consumption.
In stock
Specifications
6- Operating Voltage
- 4.5 V to 5.5 V
- Supply Current
- 80-µA Max
- Interface
- TTL-compatible inputs, 3-state outputs
- Output Drive
- +/-6-mA at 5 V
- Input Current
- 1 µA Max
- Temperature Range
- -40°C to 85°C (SOIC-DW), -55°C to 125°C (CDIP-J)
Pinout
20Low 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 |
|---|---|---|---|
| A1 | Input A1 | GPIO | |
| A2 | Input A2 | GPIO | |
| A3 | Input A3 | GPIO | |
| A4 | Input A4 | GPIO | |
| A5 | Input A5 | GPIO | |
| A6 | Input A6 | GPIO | |
| A7 | Input A7 | GPIO | |
| A8 | Input A8 | GPIO | |
| GND | Ground | GND | |
| VCC | Supply Voltage | POWER | |
| OE1 | Output Enable 1 | — | Controls the output state |
| OE2 | Output Enable 2 | — | Controls the output state |
| Y1 | Output Y1 | GPIO | |
| Y2 | Output Y2 | GPIO | |
| Y3 | Output Y3 | GPIO | |
| Y4 | Output Y4 | GPIO | |
| Y5 | Output Y5 | GPIO | |
| Y6 | Output Y6 | GPIO | |
| Y7 | Output Y7 | GPIO | |
| Y8 | Output Y8 | GPIO |
Interactive pinout
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74HCT540
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