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74HCT257 Quad 2-to-1 Mux
74HCT257
Texas Instrumentsic logic
The 74HCT257 is a quad 2-to-1 multiplexer with high-current 3-state outputs designed for bus interface in high-performance systems.
In stock
Specifications
7- Operating Voltage
- 4.5 V to 5.5 V
- Supply Current
- 80-µA max
- Interface
- 3-state outputs
- Resolution
- -20 µA to 6 mA at VCC or GND
- Range
- 0 to VCC
- Accuracy
- ±1 µA input, ±20 mA output clamp
- Temperature Range
- -55°C to 125°C (TA)
Pinout
16| Pin | Name | Functions | Notes |
|---|---|---|---|
| 1 | A/B | GPIO | Address select |
| 2 | 1A | GPIO | Channel 1, data input A |
| 3 | 1B | GPIO | Channel 1, data input B |
| 4 | 1Y | GPIO | Channel 1, data output |
| 5 | 2A | GPIO | Channel 2, data input A |
| 6 | 2B | GPIO | Channel 2, data input B |
| 7 | 2Y | GPIO | Channel 2, data output |
| 8 | GND | GND | |
| 9 | 3Y | GPIO | Channel 3, data output |
| 10 | 3B | GPIO | Channel 3, data input B |
| 11 | 3A | GPIO | Channel 3, data input A |
| 12 | 4Y | GPIO | Channel 4, data output |
| 13 | 4B | GPIO | Channel 4, data input B |
| 14 | 4A | GPIO | Channel 4, data input A |
| 15 | G | GPIO | Output strobe, active low |
| 16 | VCC | POWER |
Interactive pinout
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74HCT257
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