wms7171 Winbond Electronics Corp America, wms7171 Datasheet - Page 3

• Manufacturer Part Number: wms7171
• Description: Non-volatile Digital Potentiometers With Up/down 3-wire Interface, 10kohm, 50kohm, 100kohm Resistance 100 Taps Without / With Output Buffer
• Manufacturer: Winbond Electronics Corp America

3. BLOCK DIAGRAM
V
V
U /D
U/D
INC
INC
CS
CS
SS
SS
FIGURE 1 – WMS7170 BLOCK DIAGRAM (Rheostat/Divider Mode)
NV Memory
NV Memory
Up/Down
Up/Down
Interface
Interface
Control
Control
Serial
Serial
FIGURE 2 – WMS7171 BLOCK DIAGRAM (Divider Mode)
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NV Memory
NV Memory
NVMEM0
NVMEM0
Publication Release Date: July 2003
WMS7170 / 7171
Revision 1.0
V
R
V
V
V
R
R
V
W
DD
DD
A
B
A
W
B
/V
/V
/V
A
B
W