®
X9313
Terminal Voltages ±5V, 32 Taps
Data Sheet
September 9, 2005
FN8177.2
Digitally Controlled Potentiometer
(XDCP™)
The Intersil X9313 is a digitally controlled potentiometer
(XDCP). The device consists of a resistor array, wiper
switches, a control section, and nonvolatile memory. The
wiper position is controlled by a 3-wire interface.
The potentiometer is implemented by a resistor array
composed of 31 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 nonvolatile
memory and then be recalled upon a subsequent power-up
operation.
The device can be used as a three-terminal potentiometer or
as a two-terminal variable resistor in a wide variety of
applications including:
• Control
• Parameter adjustments
• Signal processing
Features
• Solid-state potentiometer
• 3-wire serial interface
• 32 wiper tap points
- Wiper position stored in nonvolatile memory and
recalled on power-up
• 31 resistive elements
- Temperature compensated
- End to end resistance range ± 20%
- Terminal voltages, -5V to +5V
• Low power CMOS
- V
CC
= 3V or 5V
- Active current, 3mA max.
- Standby current, 500µA max.
• High reliability
- Endurance, 100,000 data changes per bit
- Register data retention, 100 years
• R
TOTAL
values = 1kΩ, 10kΩ, 50kΩ
• Packages
- 8 Ld SOIC, MSOP and DIP
• Pb-free plus anneal available (RoHS compliant)
Block Diagrams
U/D
INC
CS
5-BIT
UP/DOWN
COUNTER
31
30
29
5-BIT
NONVOLATILE
MEMORY
28
ONE
OF
THIRTY
TWO
DECODER
2
V
SS
(GROUND)
V
CC
V
SS
GENERAL
STORE AND
RECALL
CONTROL
CIRCUITRY
1
0
R
L
/V
L
R
W
/V
W
DETAILED
R
H
/V
H
V
CC
(SUPPLY VOLTAGE)
UP/DOWN
(U/D)
INCREMENT
(INC)
DEVICE SELECT
(CS)
CONTROL
AND
MEMORY
R
H
/V
H
R
W
/V
W
TRANSFER
GATES
RESISTOR
ARRAY
R
L
/V
L
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
XDCP is a trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2005. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
INTERSIL [ INTERSIL CORPORATION ]
