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ISL22349 Folha de dados(PDF) 1 Page - Intersil Corporation

Nome de Peças ISL22349
Descrição Electrónicos  Quad Digitally Controlled Potentiometers
Download  13 Pages
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Fabricante Electrônico  INTERSIL [Intersil Corporation]
Página de início  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

ISL22349 Folha de dados(HTML) 1 Page - Intersil Corporation

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1
®
FN6331.3
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
| Intersil (and design) and XDCP are registered trademarks of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2006, 2009. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
ISL22349
Quad Digitally Controlled Potentiometers (XDCP™)
Low Noise, Low Power, I2CBus, 128 Taps,
Wiper Only
The ISL22349 integrates four digitally controlled
potentiometers (DCP) and non-volatile memory on a
monolithic CMOS integrated circuit.
The digitally controlled potentiometers are implemented with
a combination of resistor elements and CMOS switches. The
position of the wipers are controlled by the user through the
I2C bus interface. Each potentiometer has an associated
volatile Wiper Register (WR) and a non-volatile Initial Value
Register (IVR) that can be directly written to and read by the
user. The contents of the WR controls the position of the
wiper. At power up the device recalls the contents of the two
DCP’s IVR to the corresponding WRs.
The DCPs can be used as a voltage divider in a wide variety
of applications including control, parameter adjustments, AC
measurement and signal processing.
Pinout
Features
• Four potentiometers in one package
• 128 resistor taps
•I2C serial interface
- Three address pins, up to eight devices/bus
• Non-volatile storage of wiper position
• Wiper resistance: 70
Ω typical
• Shutdown mode
• Shutdown current 6.5µA max
• Power supply: 2.7V to 5.5V
•50k
Ω or 10kΩ total resistance
• High reliability
- Endurance: 1,000,000 data changes per bit per register
- Register data retention: 50 years @ T < +55°C
• 14 Ld TSSOP
• Pb-free (RoHS compliant)
ISL22349
(14 LD TSSOP)
TOP VIEW
RW0
SHDN
VCC
NC
A1
A0
NC
14
13
12
11
10
9
8
1
2
3
4
5
6
7
RW3
A2
SCL
SDA
GND
RW2
RW1
Ordering Information
PART NUMBER
(Note)
PART
MARKING
RESISTANCE OPTION
(k
Ω)
TEMP. RANGE
(°C)
PACKAGE
(Pb-free)
PKG.
DWG. #
ISL22349UFV14Z*
22349 UFVZ
50
-40 to +125
14 Ld TSSOP
M14.173
ISL22349WFV14Z*
22349 WFVZ
10
-40 to +125
14 Ld TSSOP
M14.173
*Add “-TK” suffix for tape and reel. Please refer to TB347 for details on reel specifications.
NOTE: These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100%
matte tin plate plus anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations).
Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J
STD-020.
Data Sheet
May 28, 2009


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