WMS7130 Datasheet, PDF (6/23 Pages) Winbond – NONVOLATILE DIGITAL POTENTIOMETERS WITH UP/DOWN (3-WIRE) INTERFACE

WMS7130/1
6. PIN DESCRIPTION
TABLE 1 – PIN DESCRIPTION
Pin Name
INC
U/ D
V_A
V_SS
V_DD
CS
V_BB
V_W
I/O
Description
Increment Control. A High-Low transition of INC when
I
CS is low will move the wiper up or down for one
increment based on the U/ D input
I
Up/Down control Input. High state will cause the wiper to
move to the V_BB terminal, Low state to the V_A terminal
- High terminal of WinPot
- Ground pin, logic ground reference
- Power Supply
Chip Select. When CS is HIGH, the part is deselected
I
and the device will be in the standby mode. CS LOW
enables the part, placing it in the active power mode
- Low terminal of WinPot
Wiper terminal of WinPot (can be buffered), its position on
O the resistor array is controlled by the inputs on INC , U/ D ,
and CS
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