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electronic:datasheet:mostek:mk50312 [2018/06/12 23:22] – tonyelectronic:datasheet:mostek:mk50312 [2026/09/05 04:57] (current) – external edit 127.0.0.1
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 <html><p style="text-align:center;"><b><font size="6">Mk50312</font></b></p></html> <html><p style="text-align:center;"><b><font size="6">Mk50312</font></b></p></html>
  
-====Pinout====+==== Pinout ====
 {{:electronic:datasheet:mostek:mk50312.png?400 }} {{:electronic:datasheet:mostek:mk50312.png?400 }}
 8-digit calculator, 9 function (+, -, x, /, %, $, SQRT, X^2, 1/X), seven memory functions 8-digit calculator, 9 function (+, -, x, /, %, $, SQRT, X^2, 1/X), seven memory functions
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 Note: D0, D10, D11 are for keyboard matrix only Note: D0, D10, D11 are for keyboard matrix only
 </code> </code>
 +<html><br clear=all></html>
 Taken from data for MK50311 chip which has the same pinout, I have assumed same functions, might be wrong ... Taken from data for MK50311 chip which has the same pinout, I have assumed same functions, might be wrong ...
 The TRQ F-85 calculator, that uses this chip, has a switch with two positions 'N' and '∑', I'm not sure how this is connected.  I think it may switch a line between the 'KS' column and the 'KO' column, so if that line is connected to the "=" key it would switch its function from "=" to "sum" going by the table above. The TRQ F-85 calculator, that uses this chip, has a switch with two positions 'N' and '∑', I'm not sure how this is connected.  I think it may switch a line between the 'KS' column and the 'KO' column, so if that line is connected to the "=" key it would switch its function from "=" to "sum" going by the table above.
 (The wiring of the TRQ F-85 board confirms the keyboard digit->row associations) ((http://www.calcuseum.com/SCRAPBOOK/BONUS/09734/1.htm)) (The wiring of the TRQ F-85 board confirms the keyboard digit->row associations) ((http://www.calcuseum.com/SCRAPBOOK/BONUS/09734/1.htm))
  
-====Calculators that used MK50312===+==== Calculators that used MK50312 ===
   * [[http://www.datamath.org/Related/Corvus/Corvus_615.htm|Corvus 615]]   * [[http://www.datamath.org/Related/Corvus/Corvus_615.htm|Corvus 615]]
   * [[https://www.subito.it/informatica/calcolatrice-dumont-corvus-615-anni-70-salerno-240894912.htm|Corvus 615]]   * [[https://www.subito.it/informatica/calcolatrice-dumont-corvus-615-anni-70-salerno-240894912.htm|Corvus 615]]
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   * [[http://www.calcuseum.com/SCRAPBOOK/BONUS/48657/1.htm|F-84]],  Electrónica Querol (TRQ) F84. ((Spain))   * [[http://www.calcuseum.com/SCRAPBOOK/BONUS/48657/1.htm|F-84]],  Electrónica Querol (TRQ) F84. ((Spain))
   * [[http://www.calcuseum.com/SCRAPBOOK/BONUS/09734/1.htm|F-85]],  Electrónica Querol (TRQ) F85. ((Spain))   * [[http://www.calcuseum.com/SCRAPBOOK/BONUS/09734/1.htm|F-85]],  Electrónica Querol (TRQ) F85. ((Spain))
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electronic/datasheet/mostek/mk50312.1528845756.txt.gz · Last modified: 2018/06/12 23:22 by tony
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