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Component : 7490 (searched for '74LS90, 7490')


4-bit asynchronous decade counter with /2 and /5 sections, set(9) and reset.


/CLK1 |1  +--+ 14| /CLK0
 RST1 |2       13|
 RST2 |3       12| Q0
      |4  7490 11| Q3
  VCC |5       10| GND
 SET1 |6        9| Q1
 SET2 |7        8| Q2

Boards using component:

Type Name Description
Logic Centipede PCB Primary logic board.
Sound Sega/Gremlin 834-0069 Sub-logic board for Frogger. Mounted on t...

Copyright statement
Component information gathered from GIICM, and per the copyright:

"Copyright 1992-1997, Frank A. Vorstenbosch.
Commercial reproduction of the included information (in whatever way) is not allowed without prior consent of the author. In all cases must this copyright message be reproduced on the copies."

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