7402: Difference between revisions

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(Might as well have this)
 
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== 74161 Pinout ==
== 74161 Pinout ==
<pre>
<pre>
              .--\/--.
      .--\/--.
        Y1 --|01  14|-- +5V
Y1 --|01  14|-- +5V
        A1 --|02  13|-- Y4
A1 --|02  13|-- Y4
        B1 --|03  12|-- B4
B1 --|03  12|-- B4
        Y2 --|04  11|-- A4
Y2 --|04  11|-- A4
        A2 --|05  10|-- Y3
A2 --|05  10|-- Y3
        B2 --|06  09|-- B3
B2 --|06  09|-- B3
        Gnd --|07  08|-- A3
Gnd --|07  08|-- A3
              `------'</pre>
      `------'</pre>
 
== Signal descriptions ==
== Signal descriptions ==
Y is low if either A or B is high, and is high if A and B are both low.
Y is low if either A or B is high, and is high if A and B are both low.


[[Category:7400 series|02]]
[[Category:7400 series|02]]

Revision as of 02:55, 10 May 2011

The 7402 (variants 74LS02, 74HC02) is a 74-series logic IC with four independent 2-Input NOR gates.

74161 Pinout

      .--\/--.
 Y1 --|01  14|-- +5V
 A1 --|02  13|-- Y4
 B1 --|03  12|-- B4
 Y2 --|04  11|-- A4
 A2 --|05  10|-- Y3
 B2 --|06  09|-- B3
Gnd --|07  08|-- A3
      `------'

Signal descriptions

Y is low if either A or B is high, and is high if A and B are both low.