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X9313_07 Datasheet, PDF (1/12 Pages) Intersil Corporation – Digitally Controlled Potentiometer
®
Data Sheet
X9313
Digitally Controlled Potentiometer (XDCP™)
April 18, 2007
FN8177.5
Linear, 32 Taps, 3 Wire Interface, Terminal
Voltages ± VCC
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, -VCC to +VCC
• Low power CMOS
- VCC = 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
• RTOTAL values = 1kΩ, 10kΩ, 50kΩ
• Packages
- 8 Ld SOIC, 8 Ld MSOP and 8 Ld PDIP
• Pb-free plus anneal available (RoHS compliant)
Block Diagram
VCC (SUPPLY VOLTAGE)
DECODER
U/D
5-BIT
INC
UP/DOWN
31
CS
COUNTER
30
RH/VH
UP/DOWN
(U/D)
INCREMENT
(INC)
DEVICE SELECT
(CS)
CONTROL
AND
MEMORY
VSS (GROUND)
GENERAL
RH/VH
RW/VW
RL/VL
VCC
VSS
5-BIT
NONVOLATILE
MEMORY
STORE AND
RECALL
CONTROL
CIRCUITRY
29
28
ONE OF
THIRTY-TWO
OUTPUTS
ACTIVE
AT A
TIME
2
1
0
TRANSFER RESISTOR
GATES
ARRAY
DETAILED
RL/VL
RW/VW
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.