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X9110TV14I-2.7 Datasheet(PDF) 1 Page - Intersil Corporation

Part # X9110TV14I-2.7
Description  Dual Supply/Low Power/1024-Tap/SPI Bus
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Manufacturer  INTERSIL [Intersil Corporation]
Direct Link  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

X9110TV14I-2.7 Datasheet(HTML) 1 Page - Intersil Corporation

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1
®
FN8158.3
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, 2008. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
X9110
Dual Supply/Low Power/1024-Tap/SPI Bus
Single Digitally-Controlled (XDCP™)
Potentiometer
The X9110 integrates a single digitally controlled
potentiometer (XDCP) on a monolithic CMOS integrated
circuit.
The digital controlled potentiometer is implemented using
1023 resistive elements in a series array. Between each
element are tap points connected to the wiper terminal
through switches. The position of the wiper on the array is
controlled by the user through the SPI bus interface. The
potentiometer has associated with it a volatile Wiper Counter
Register (WCR) and four non-volatile Data Registers that
can be directly written to and read by the user. The contents
of the WCR controls the position of the wiper on the resistor
array though the switches. Power-up recalls the contents of
the default data register (DR0) to the WCR.
The XDCP 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, and
signal processing.
Features
• 1024 Resistor Taps – 10-Bit Resolution
• SPI Serial Interface for write, read, and transfer operations
of the potentiometer
• Wiper Resistance, 40
Ω Typical @ 5V
• Four Non-Volatile Data Registers
• Non-Volatile Storage of Multiple Wiper Positions
• Power-on Recall. Loads Saved Wiper Position on Power-up
• Standby Current < 3µA Max
• System VCC: 2.7V to 5.5V Operation
• Analog V+/V-: -5V to +5V
•100k
Ω End to End Resistance
• 100 yr. Data Retention
• Endurance: 100, 000 Data Changes Per Bit Per Register
• 14 Ld TSSOP
• Dual Supply Version of the X9111
• Low Power CMOS
• Pb-Free Available (RoHS Compliant)
Pinout
X9110
14 LD TSSOP
TOP VIEW
Functional Diagram
VCC
RL
VSS
1
2
3
4
5
6
7
8
14
13
12
11
10
9
A0
RW
SCK
CS
RH
S0
V+
SI
HOLD
WP
V-
RH
RL
BUS
RW
INTERFACE &
CONTROL
POT
VCC
VSS
SPI
BUS
ADDRESS
DATA
STATUS
WRITE
READ
WIPER
1024-TAPS
TRANSFER
NC
NC
100k
Ω
POWER-ON RECALL
WIPER COUNTER
REGISTER (WCR)
DATA REGISTERS
(DR0-DR3)
CONTROL
INTERFACE
V+
V-
Data Sheet
February 13, 2008


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