DATASHEET
X9C102, X9C103, X9C104, X9C503
Digitally Controlled Potentiometer (XDCP™)
FN8222
Rev 4.00
Jan 11, 2019
The X9C102, X9C103, X9C104, X9C503 are digitally
controlled (XDCP) potentiometers. The device consists of a
resistor array, wiper switches, a control section, and
nonvolatile memory. The wiper position is controlled by a
three-wire interface.
Features
• Solid-State Potentiometer
• Three-Wire Serial Interface
• 100 Wiper Tap Points
The potentiometer is implemented by a resistor array
composed of 99 resistive elements and a wiper switching
network. Between each element and at either end are tap
points accessible to the wiper terminal. The position of the
wiper element is controlled by the CS, U/D, and INC inputs.
The position of the wiper can be stored in non-volatile
memory and then be recalled upon a subsequent power-up
operation.
- Wiper Position Stored in Non-volatile Memory and
Recalled on Power-up
• 99 Resistive Elements
- Temperature Compensated
- End-to-End Resistance, ±20%
- Terminal Voltages, ±5V
• Low Power CMOS
- VCC = 5V
The device can be used as a three-terminal potentiometer or
as a two-terminal variable resistor in a wide variety of
applications ranging from control to signal processing to
parameter adjustment.
- Active Current, 3mA max.
- Standby Current, 750µA max.
• High Reliability
Pinout
- Endurance, 100,000 Data Changes per Bit
- Register Data Retention, 100 years
X9C102, X9C103, X9C104, X9C503
(8 LD SOIC, 8 LD PDIP)
TOP VIEW
• X9C102 = 1k
• X9C103 = 10k
• X9C503 = 50k
• X9C104 = 100k
INC
U/D
V
CC
1
2
3
4
8
7
6
5
CS
V /R
L
V /R
L
H
H
V
V
/R
W
• Packages
- 8 Ld SOIC
- 8 Ld PDIP
SS
W
• Pb-Free Available (RoHS Compliant)
Block Diagram
U/D
INC
CS
7-BIT
UP/DOWN
COUNTER
99
R
V
H
H/
98
97
96
V
(SUPPLY VOLTAGE)
CC
7-BIT
V /R
H
H
UP/DOWN (U/D)
INCREMENT (INC)
NON-VOLATILE
MEMORY
ONE
OF
CONTROL
AND
MEMORY
R
/V
W
W
ONE-
HUNDRED
DECODER
RESISTOR
ARRAY
TRANSFER
GATES
DEVICE
SELECT
(CS)
V /R
L
L
2
1
0
V
(GROUND)
SS
STORE AND
RECALL
CONTROL
CIRCUITRY
GENERAL
V
CC
GND
R /V
L
L
R
/V
W
DETAILED
W
FN8222 Rev 4.00
Jan 11, 2019
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