X9C102_06 Datasheet, PDF (3/11 Pages) Intersil Corporation – Digitally Controlled Potentiometer

X9C102, X9C103, X9C104, X9C503
PIN DESCRIPTIONS
Pin Symbol
Brief Description
1
INC
Increment . The INC input is negative-edge triggered. Toggling INC will move the wiper and either
increment or decrement the counter in the direction indicated by the logic level on the U/D input.
2
U/D
Up/Down. The U/D input controls the direction of the wiper movement and whether the counter
is incremented or decremented.
3
R_H/V_H R_H/V_H. The high (V_H/R_H) terminals of the X9C102/103/104/503 are equivalent to the fixed
terminals of a mechanical potentiometer. The minimum voltage is -5V and the maximum is +5V.
The terminology
relation to wiper
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the
the
terminal
voltage
in
potential
on
the terminal.
4
V_SS
V_SS
5
V_W/R_W V_W/R_W. V_W/R_W is the wiper terminal, and is equivalent to the movable terminal of a mechanical
potentiometer. The position of the wiper within the array is determined by the control inputs. The
wiper terminal series resistance is typically 40Ω.
6
R_L/V_L
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to the fixed
maximum is
+5V.
The terminology
relation to wiper
mofoVv^He/mRe^HnatnddirVec^L/tRioLnrseefelerectnecdesbythtehereUla/Dtivienppuotsaitniodnnooft
the
the
terminal
voltage
in
potential
on
the terminal.
7
CS
CS. The device is selected when the CS input is LOW. The current counter value is stored in
nonvolatile memory when CS is returned HIGH while the INC input is also HIGH. After the store op-
eration is complete the X9C102/103/104/503 device will be placed in the low power standby mode
until the device is selected once again.
8
V_CC
V_CC
3
FN8222.1
December 20, 2006