X9259_14 Datasheet, PDF (9/21 Pages) Intersil Corporation – Single Supply/Low Power/256-Tap/2-Wire Bus Quad Digitally-Controlled Potentiometers

X9259
SCL
SDA
0101
S ^{ID3 ID2 ID1 ID0 A3 A2 A1 A0} A ^I3
I2 I1 I0 RB RA P1 P0 _A
I
I
T
A
Device ID
R
External
Address
C
CNN
K
Instruction
Register Pot/WCR K C C
Opcode
Address Address
12
T
ID
NE
CC
n1
FIGURE 6. INCREMENT/DECREMENT INSTRUCTION SEQUENCE 2-WIRE INTERFACE
DS
ET
CO
nP
INC/DEC
CMD
ISSUED
SCL
t_WRID
SDA
R_W
VOLTAGE OUT
FIGURE 7. INCREMENT/DECREMENT TIMING SPECIFICATION
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9
FN8169.6
December 12, 2014