8035

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HMOS Single Component 8BIT Microcontroller - no internal ROM - 64x8 RAM

Pinout

DIP40
         +---\/---+
      T0 | 1    40| Vcc
   XTAL1 | 2    39| T1
   XTAL2 | 3    38| P27
  *RESET | 4    37| P26
     *SS | 5    36| P25
    *INT | 6    35| P24
      EA | 7    34| P17
     *RD | 8    33| P16
   *PSEN | 9    32| P15
     *WR |10    31| P14
     ALE |11    30| P13
     DB0 |12    29| P12
     DB1 |13    28| P11
     DB2 |14    27| P10
     DB3 |15    26| Vdd
     DB4 |16    25| PROG
     DB5 |17    24| P23
     DB6 |18    23| P22
     DB7 |19    22| P21
     Vss |20    21| P20
         +--------+

Frequency

DIP40
Set reader to FREQ, put black probe to GND, red probe to 2 AND 3 to measure CPU clock

External links

8035 page on CPU-World

Files