2636

Programmable Video Interface

Pinout

DIP40
         +---\/---+
     PCK | 1    40| GND
      NC | 2    39| *INTREQ
      A6 | 3    38| *R/W
      A5 | 4    37| VRST
      A4 | 5    36| HRST
      A3 | 6    35| *C1
      A2 | 7    34| *C2
      A1 | 8    33| *C3
      A0 | 9    32| *OBJ/*SCR
      A7 |10    31| INTACK
      A8 |11    30| D0
     Vcc |12    29| D1
      A9 |13    28| D2
     A10 |14    27| D3
     A11 |15    26| D4
     CE1 |16    25| D5
  *OPACK |17    24| D6
   OPREQ |18    23| D7
    *CE2 |19    22| SOUND
    POT2 |20    21| POT1
         +--------+

Frequency

DIP40
Set reader to FREQ, put black probe to GND, red probe to 1 to measure CPU clock
Set reader to FREQ, put black probe to GND, red probe to 36 to measure Hor clock
Set reader to FREQ, put black probe to GND, red probe to 37 to measure Ver clock

External links

2650 family page on Wikipedia

Files

• 
  2636 Datasheet