68705: Difference between revisions
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Revision as of 11:01, 24 January 2016
8-bit EPROM Microcomputer Unit
Pinout
DIP28 +---\/---+ Vss | 1 28| *RESET *INT | 2 27| PA7 Vcc | 3 26| PA6 EXTAL | 4 25| PA5 XTAL | 5 24| PA4 Vpp | 6 23| PA3 TIMER | 7 22| PA2 PC0 | 8 21| PA1 PC1 | 9 20| PA0 PC2 |10 19| PB7 PC3 |11 18| PB6 PB0 |12 17| PB5 PB1 |13 16| PB4 PB2 |14 15| PB3 +--------+
Frequency
DIP28
Set reader to FREQ, put black probe to GND, red probe to 4 and 5 to measure CPU clock
External links
Files
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68705 Datasheet