8088
From Citylan
8-bit Microprocessor
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
External links
8088 page on Wikipedia
8088 page on CPU-World
Files
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8088 Datasheet