®
X9313
Digitally Controlled Potentiometer (XDCP™)
Data Sheet
April 18, 2007
FN8177.5
Linear, 32 Taps, 3 Wire Interface, Terminal
Voltages
±
V
CC
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, -V
CC
to +V
CC
• 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, 8 Ld MSOP and 8 Ld PDIP
• Pb-free plus anneal available (RoHS compliant)
Block Diagram
DECODER
U/D
INC
CS
5-BIT
UP/DOWN
COUNTER
31
30
29
5-BIT
NONVOLATILE
MEMORY
28
ONE OF
THIRTY-TWO
OUTPUTS
ACTIVE
AT A
TIME
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, 2006, 2007. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
INTERSIL [ INTERSIL CORPORATION ]
