DS1669 Dallas Semiconducotr, DS1669 Datasheet - Page 5

• Manufacturer Part Number: DS1669
• Description: (DS1668 / DS1669) ELECTRONIC DIGITAL RHEOSTAT
• Manufacturer: Dallas Semiconducotr

DS1668 DALLASTAT
FLOWCHART: ONE BUTTON OPERATION AND ELECTRICAL CONTROL Figure 4
CONTACT OPEN AND CONTACT CLOSURE TIMING IS 1s
INCREMENT/DECREMENT
INCREMENT/DECREMENT
ON 100MS INTERVALS
CONTACT CLOSURE
CONTACT CLOSED
TM
CONTINUOUSLY
UC
DC
R
R
(D OR UC)
R
> 1 SEC ?
BLOCK DIAGRAM Figure 3
D
-
+
H
W
L
1/64TH
YES
NO
RHEOSTAT
SHADOW MEMORY
64 TO 1 MUXER
CONTACT OPEN
LIMIT REACHED
1 SEC ?
OR
NO
10%
NOTE:
DOTTED LINE CONNECTIONS AND
COMPONENTS ARE INTERNAL TO
THE DS1668 AND DO NOT EXIST ON
THE DS1669.
YES
REVERSE DIRECTION
DS1668, DS1669, DS1669S
AND CONTROL
INTERPRETER
INPUT
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