X9409 Datasheet, PDF (7/20 Pages) Xicor Inc. – Quad Digitally Controlled Potentiometers

Figure 4. Three-Byte Instruction Sequence
X9409
SCL
SDA
S0
T
A
R
T
1 0 1 A3 A2 A1 A0 A I3 I2
C
K
I1 I0 R1 R0 P1 P0 A 0
C
K
0 D5 D4 D3 D2 D1 D0 A S
CT
KO
P
Figure 5. Increment/Decrement Instruction Sequence
SCL
SDA
S 0 1 0 1 A3 A2 A1 A0 A I3 I2 I1 I0 R1 R0 P1 P0 A I I
T
C
CN N
A
K
KCC
R
12
T
Figure 6. Increment/Decrement Timing Limits
ID
NE
CC
n1
DS
ET
CO
nP
INC/DEC
CMD
Issued
SCL
t_WRID
SDA
V_W/R_W
Voltage Out
7
FN8192.3
October 19, 2005