X9421 Xicor, X9421 Datasheet - Page 8

• Manufacturer Part Number: X9421
• Description: Single Digitally Controlled (XDCP) Potentiometer
• Manufacturer: Xicor

X9421
Figure 5. Three-Byte Instruction Sequence (Write)
Figure 6. Three-Byte Instruction Sequence (Read)
Figure 7. Increment/Decrement Instruction Sequence
Figure 8. Increment/Decrement Timing Limits
REV 1.1.6 8/1/02
SCK
SCL
SCL
CS
CS
S0
CS
SI
SI
SI
0
0
0
1
1
SCK
1
V
SI
W
0
0
0
1
1
INC/DEC CMD Issued
1
1
1
1
1
1
1
0
0
0
A0
A0
A0
Voltage Out
I3
I3
I3
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I2
I2
I2
I1 I0
I1 I0
I1
R1 R0 0
R1 R0
I0
0
0
0
0
0
0
t
WRID
0
Characteristics subject to change without notice.
0
0
0
0
N
C
1
I
Don’t Care
D5 D4 D3 D2 D1 D0
D5 D4 D3 D2 D1 D0
N
C
2
I
N
C
n
I
D
C
E
1
D
E
C
n
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