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X9420WS16IZ-2.7 Datasheet(PDF) 1 Page - Intersil Corporation

Part # X9420WS16IZ-2.7
Description  Single Digitally Controlled Potentiometer
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Manufacturer  INTERSIL [Intersil Corporation]
Direct Link  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

X9420WS16IZ-2.7 Datasheet(HTML) 1 Page - Intersil Corporation

  X9420WS16IZ-2.7 Datasheet HTML 1Page - Intersil Corporation X9420WS16IZ-2.7 Datasheet HTML 2Page - Intersil Corporation X9420WS16IZ-2.7 Datasheet HTML 3Page - Intersil Corporation X9420WS16IZ-2.7 Datasheet HTML 4Page - Intersil Corporation X9420WS16IZ-2.7 Datasheet HTML 5Page - Intersil Corporation X9420WS16IZ-2.7 Datasheet HTML 6Page - Intersil Corporation X9420WS16IZ-2.7 Datasheet HTML 7Page - Intersil Corporation X9420WS16IZ-2.7 Datasheet HTML 8Page - Intersil Corporation X9420WS16IZ-2.7 Datasheet HTML 9Page - Intersil Corporation Next Button
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1
®
X9420
Low Noise/Low Power/SPI Bus
Single Digitally Controlled (XDCP™)
Potentiometer
FEATURES
• Solid-State Potentiometer
• SPI Serial Interface
• Register Oriented Format
—Direct read/write/transfer wiper positions
—Store as many as four positions per
potentiometer
• Power Supplies
—VCC = 2.7V to 5.5V
—V+ = 2.7V to 5.5V
—V– = -2.7V to -5.5V
• Low Power CMOS
—Standby current < 1µA
• High Reliability
—Endurance–100,000 data changes per bit per
register
—Register data retention–100 years
• 8-bytes of Nonvolatile EEPROM Memory
•10k
Ω or 2.5kΩ Resistor Arrays
• Resolution: 64 Taps Each Pot
• 14 Ld TSSOP and 16 Ld SOIC Packages
• Pb-Free Plus Anneal Available (RoHS Compliant)
DESCRIPTION
The X9420 integrates a single digitally controlled
potentiometers (XDCP) on a monolithic CMOS
integrated microcircuit.
The digitally controlled potentiometer is implemented
using 63 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 4
nonvolatile Data Registers (DR0:DR3) 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 through the switches. Power-up recalls
the contents of 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.
BLOCK DIAGRAM
R0 R1
R2 R3
Wiper
Counter
Register
(WCR)
Interface
and
Control
Circuitry
HOLD
CS
SI
A0
VH/RH
VL/RL
Data
8
VW/RW
SCK
S0
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. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
Data Sheet
FN8195.1
April 26, 2006
NOT
RECO
MME
NDED
FOR
NEW
DESI
GNS
POSS
IBLE
SUBS
TITUT
E PR
ODU
CT
ISL22
416,
ISL22
419, I
SL95
311,
ISL95
711


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