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The 7405 is a hex inverter with open collector-outputs, the I/O's is as follow:

Input Inverted output

Pin1=A1 Pin2=Y1

Pin3=A2 Pin4=Y2

Pin5=A3 Pin6=Y3

Pin9=A4 Pin8=Y4

Pin11=A5 Pin10=Y5

Pin13=A6 Pin12=Y6

Power pins

Pin14=Vcc +

Pin 7=GND

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16y ago
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13y ago

+---+--+---+ +---+---*---+ __ 1a |1 +--+ 14| vcc | a | b |/y | /y = ab 1b |2 13| 4b +===+===*===+ /1y |3 12| 4a | 0 | 0 | 1 | 2a |4 7400 11| /4y | 0 | 1 | 1 | 2b |5 10| 3b | 1 | 0 | 1 | /2y |6 9| 3a | 1 | 1 | 0 | gnd |7 8| /3y +---+---*---+ +----------+

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13y ago

A: There are data sheets available on the internet where any chip specification can be found. see datasheetlocator.com

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Q: How does ic 7405 work with pin configuration?
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