DS1668 Datasheet, PDF (6/10 Pages) Dallas Semiconductor – ELECTRONIC DIGITAL RHEOSTAT

DS1668, DS1669, DS1669S
FLOWCHART: TWO BUTTON OPERATION Figure 5
CONTACT CLOSURE
UC
UC OR DC?
DC
AT UPPER
LIMIT?
NO
INCREMENT
1/64TH
YES
YES
BOTH CONTACTS
OPEN?
YES
AT LOWER
LIMIT?
NO
DECREMENT
1/64TH
CONTACT CLOSED
NO
CONTINUOUSLY
>1 SEC?
YES
INCREMENT ON
100MS INTERVALS
NO
CONTACT CLOSED
CONTINUOUSLY
>1 SEC?
YES
DECREMENT ON
100MS INTERVALS
NO
YES
AT UPPER
LIMIT?
YES
NO
AT LOWER
LIMIT?
CONTACT OPEN AND CONTACT CLOSURE TIMING IS 1 sec. ± 10%
081895 6/10