Datasheet

10-Bit, Nonvolatile, Linear-Taper Digital
Potentiometers
Figure 4. Serial SPI-Compatible Interface Format
ACTION
WIPER
REGISTER
UPDATED
0 0 0 0 0 0 0 0 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
12345678 910111213141516 1718192021222324
XXXXXX
CS
C1 C0
SCLK(INC)
DIN(U/D)
1 2 3 4 5 6 7 8 9
10
D9 D8 D7 D6 D5 D4 D3 D2
a) 24-BIT COMMAND/DATA WORD
1 2 3 4 5 6 7 8
C1 C0
b) 8-BIT COMMAND WORD
D1 D0
CS
11 12
13 14 15 16
17
18 19 20 21 22
23 24
CS
C1 C0
SCLK(INC)
DIN(U/D)
DIN(U/D)
SCLK(INC)
Figure 5. Write Wiper Register Operation
MAX5481–MAX5484
15
Maxim Integrated