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ISL22346UFV20Z データシート(PDF) 1 Page - Intersil Corporation

部品番号 ISL22346UFV20Z
部品情報  Quad Digitally Controlled Potentiometers
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メーカー  INTERSIL [Intersil Corporation]
ホームページ  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

ISL22346UFV20Z データシート(HTML) 1 Page - Intersil Corporation

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1
®
FN6177.2
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, 2008, 2009. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
ISL22346
Quad Digitally Controlled Potentiometers (XDCP™)
Low Noise, Low Power I2CBus,
128 Taps
The ISL22346 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 three-terminal potentiometers
or as a two-terminal variable resistors in a wide variety of
applications including control, parameter adjustments, and
signal processing.
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 @ V
CC = 3.3V
• Shutdown mode
• Shutdown current 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
• 20 Ld TSSOP or 20 Ld TQFN package
• Pb-free (RoHS compliant)
Pinouts
ISL22346
(20 LD TSSOP)
TOP VIEW
ISL22346
(20 LD TQFN)
TOP VIEW
RW0
RL0
RH0
SHDN
VCC
A1
A0
RH1
RL1
RW1
20
19
18
17
16
15
14
13
12
11
1
2
3
4
5
6
7
8
9
10
RH3
RL3
RW3
A2
SCL
SDA
GND
RW2
RL2
RH2
1
2
3
4
6
18
20 19
RL3
RH2
RW1
8
17
9
RH1
RW0
RL1
15
14
13
12
7
RL0
RH3
16
5
RW3
RL2
11
10
O
Data Sheet
September 3, 2009


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