
DS1667
021492 4/11
WRITING DATA Figure 2
RST
DQ
CLK
I/O SR
WIPER 0 & 1
STACK SELECT
PREVIOUS VALUE
NEW VALUE
NEW CONTROL REG.+0, 1+0
DON’T CAREDON’T CARE BIT 16 BIT 15 BIT 14 BIT 0
PREVIOUS
CONTROL
REG.
CASCADING MULTIPLE DEVICES Figure 3
DS1667
#1
DS1667
#2
DS1667
#3
DQ DQ DQ
C
OUT
C
OUT
C
OUT
OPTIONAL FEEDBACK
RESISTOR FOR READING DATA
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