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electronic:datasheet:mostek [2018/06/08 09:18] – tonyelectronic:datasheet:mostek [2026/09/21 11:24] (current) – tony
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 ===== Datasheets ===== ===== Datasheets =====
- * { {:electronic:datasheet:mostek:.pdf|xyz}} chip. +  * [[:electronic:datasheet:mostek:mk5012|MK5012]] 
- +  * {{:electronic:datasheet:mostek:mk5020.pdf|MK5020}} 
-<code> +  * [[:electronic:datasheet:mostek:mk5021|MK5021]]. {{:electronic:datasheet:mostek:mk5021.pdf|MK5021}} 
-MK 50312 - 8-digit calculator, 9 function (+, -, x, /, %, $, SQRT, X^2, 1/X), seven memory functions +  * {{:electronic:datasheet:mostek:mk5022.pdf|MK5022}} 
-              _____ _____ +  * {{:electronic:datasheet:mostek:mk50203.pdf|MK50203}} 
-             |     U     |              Keyboard Matrix:  +  * {{:electronic:datasheet:mostek:mk50280.pdf|MK50280}} 
- (+9V) Vss --| 1      28 |-- f               KN    K0    KS   Note: KS = KN && K0  +  * {{:electronic:datasheet:mostek:mk50281.pdf|MK50281}} 
-         g --| 2      27 |-- b          D0         CM +  * {{:electronic:datasheet:mostek:mk50282.pdf|MK50282}} 
-         d --| 3      26 |-- a          D1   1     % +  * {{:electronic:datasheet:mostek:mk50283.pdf|MK50283}} 
-         e --| 4      25 |-- c          D2   2     sum   = +  * [[:electronic:datasheet:mostek:mk50311|MK50311]] 
-        dp --| 5      24 |-- ISET       D3   3     M-=   M- +  * [[:electronic:datasheet:mostek:mk50312|MK50312]]
-        D0 --| 6      23 |-- Vdd (Gnd)  D4   4     SQRT  X^2 +
-       N/C --| 7      22 |-- KN         D5   5     1/X   . +
-       N/C --| 8      21 |-- D1         D6   6     $     / +
-        K0 --| 9      20 |-- D2         D7   7     M+=   M+ +
-       N/C --| 10     19 |-- D3         D8   8     XM    x +
-       D11 --| 11     18 |-- D4         D9   9     MS    - +
-       D10 --| 12     17 |-- D5        D10   0     MR    + +
-        D9 --| 13     16 |-- D6        D11         C/CE +
-        D8 --| 14     15 |-- D7 +
-             |___________|             Note: D0, D10, D11 are for keyboard matrix only +
-</code> +
-Taken from data for MK50311 chip which has the same pinout, I have assumed same functions, might be wrong ...+
  
 ====== References and Additional Resources ====== ====== References and Additional Resources ======
-Trying to track down datasheet on MK50312N calculator chip, made by Mostek, manufactured 1974/75?, definitely some made in 1976.+  * [[https://www.rskey.org/~mwsebastian/calcwebpg/mostek.htm]]
  
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