DS1668 查看數據表（PDF） - Dallas Semiconductor -> Maxim Integrated
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DS1668 Datasheet PDF : 10 Pages
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DS1668 DALLASTATTM BLOCK DIAGRAM Figure 3
+
D
UC
DC
DS1668, DS1669, DS1669S
INPUT
INTERPRETER
AND CONTROL
-
RL
SHADOW MEMORY
64 TO 1 MUXER
RH
RHEOSTAT
NOTE: DOTTED LINE CONNECTIONS AND
COMPONENTS ARE INTERNAL TO
THE DS1668 AND DO NOT EXIST ON
RW
THE DS1669.
FLOWCHART: ONE BUTTON OPERATION AND ELECTRICAL CONTROL Figure 4
CONTACT CLOSURE
(D OR UC)
INCREMENT/DECREMENT
1/64TH
NO
CONTACT CLOSED
NO
CONTINUOUSLY
> 1 SEC ?
YES
INCREMENT/DECREMENT
ON 100MS INTERVALS
LIMIT REACHED
OR
CONTACT OPEN
1 SEC ?
YES
REVERSE DIRECTION
CONTACT OPEN AND CONTACT CLOSURE TIMING IS 1s ± 10%
081895 5/10
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