7432

From NESdev Wiki
Revision as of 02:57, 10 May 2011 by Drag (talk | contribs) (→‎7432 Pinout: Fixed a numbering issue...)
Jump to navigationJump to search

The 7432 (variants 74LS32, 74HC32) is a 74-series logic IC with four independent 2-input OR gates.

7432 Pinout

      .--\/--.
 1A - |01  14| - +5V
 1B - |02  13| - 4A
 1Y - |03  12| - 4B
 2A - |04  11| - 4Y
 2B - |05  10| - 3A
 2Y - |06  09| - 3B
Gnd - |07  08| - 3Y
      `------'

Signal descriptions

For each set of pins starting with the same number, Y is high if either A or B are high.