6502

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MOS Technology 6502 CPU


Clones & Variants

  • Atari CO14377: 6502B Clone
  • Atari CO14806: 6502C Clone (Adds HALT)


Pinout

     +-----+--+-----+
 GND |1    +--+   40| /RST
 RDY |2           39| Φ2
  Φ1 |3           38| SO
/IRQ |4           37| Φ0 (in)
     |5           36|
/NMI |6           35| /HALT (6502C only)
SYNC |7           34| R//W
 VCC |8           33| D0
  A0 |9           32| D1
  A1 |10   6502   31| D2
  A2 |11          30| D3
  A3 |12          29| D4
  A4 |13          28| D5
  A5 |14          27| D6
  A6 |15          26| D7
  A7 |16          25| A15
  A8 |17          24| A14
  A9 |18          23| A13
 A10 |19          22| A12
 A11 |20          21| GND
     +--------------+