8086
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16-bit Microprocessor
Pinout
DIP40
+---\/---+
GND | 1 40| Vcc
AD14 | 2 39| AD15
AD13 | 3 38| A16 S3
AD12 | 4 37| AD17 S4
AD11 | 5 36| AD18 S5
AD10 | 6 35| AD19 S6
AD9 | 7 34| *BHE S7
AD8 | 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
External links
8086 page on Wikipedia
8086 page on CPU-World
Files
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8086 Datasheet