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Component : 555 (searched for '555')

Description

Universal timer.When CV is not connected it is held at 2/3.VCC through a 5k/10kdivider (larger values on the 7555).

Details


     +---+--+---+            +------+--------+------*---+-----+
 GND |1  +--+  8| VCC        | /RST |  /TR   | Thr  | Q | Dis |
 /TR |2        7| Dis        +======+========+======*===+=====+
   Q |3   555  6| Thr        |  0   |   X    |  X   | 0 |  0  |
/RST |4        5| CV         |  1   | < CV/2 |  X   | 1 |  Z  |
     +----------+            |  1   | > CV/2 | < CV | - |  -  |
                             |  1   | > CV/2 | > CV | 0 |  0  |
                             +------+--------+------*---+-----+


Boards using component:

Type Name Description
Logic Centipede PCB Primary logic board.


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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