8253: Difference between revisions
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Created page with "'''Programmable Interval Timer''' =Pinout= <pre> DIP24 +---\/---+ D7 | 1 24| Vcc D6 | 2 23| *WR D5 | 3 22| *RD D4 | 4 21| *CS ..." |
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Revision as of 11:03, 11 May 2013
Programmable Interval Timer
Pinout
DIP24
+---\/---+
D7 | 1 24| Vcc
D6 | 2 23| *WR
D5 | 3 22| *RD
D4 | 4 21| *CS
D3 | 5 20| A1
D2 | 6 19| A0
D1 | 7 18| CLK2
D0 | 8 17| OUT2
CLK0 | 9 16| GATE2
OUT0 |10 15| CLK1
GATE0 |11 14| GATE1
GND |12 13| OUT1
+--------+
Frequency
DIP24
Set reader to FREQ, put black probe to GND, red probe to 9,15,18 to measure CPU clock
External links
Files
-
D8253C Datasheet
