8088

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Pinout (DIP40)

        +--\/--+
    GND | 1  40| Vcc
    A14 | 2  39| A15
    A13 | 3  38| A16 S3
    A12 | 4  37| A17 S4
    A11 | 5  36| A18 S5
    A10 | 6  35| A19 S6
     A9 | 7  34| /SS0 (High)
     A8 | 8  33| MN /MX
    AD7 | 9  32| /RD
    AD6 |10  31| HOLD (/RQ /GT0)
    AD5 |11  30| HLDA (/RQ /GT1)
    AD4 |12  29| /WR (/LOCK)
    AD3 |13  28| IO /M (/S2)
    AD2 |14  27| DT /R (/S1)
    AD1 |15  26| /DEN (/S0)
    AD0 |16  25| ALE (QS0)
    NMI |17  24| /INTA (QS1)
   INTR |18  23| /Test
    CLK |19  22| Ready
    GND |20  21| Reset
        +------+

Frequency: set reader to FREQ, put black probe to GND, red probe to 19 to measure CPU clock

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