6502

8-bit Microprocessor

Pinout

DIP40
        +---\/---+
    Vss | 1    40| *RES
    RDY | 2    39| /2 (out) (clock internal?)
/1(out) | 3    38| S0
   *IRQ | 4    37| /0 (in) (clock external?)
     NC | 5    36| NC
   *NMI | 6    35| NC
   SYNC | 7    34| R/*W
 +5 Vcc | 8    33| D0
     A0 | 9    32| D1
     A1 |10    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| Vss
        +--------+

Frequency

Set reader to FREQ, put black probe to GND, red probe to 37 or 39 to measure CPU clock
Guru's comment: 37(in), 3 & 39 (out)

External links

6502 page on Wikipedia
6502 page on CPU-World

Files

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  G65C02 Datasheet