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ISL22343TFV20Z 数据表(PDF) 1 Page - Intersil Corporation

部件名 ISL22343TFV20Z
功能描述  Quad Digitally Controlled Potentiometer XDCP
Download  18 Pages
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制造商  INTERSIL [Intersil Corporation]
网页  http://www.intersil.com/cda/home
标志 INTERSIL - Intersil Corporation

ISL22343TFV20Z 数据表(HTML) 1 Page - Intersil Corporation

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1
®
FN6423.1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
| Intersil (and design) and XDCP are registered trademarks of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2007, 2008. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
ISL22343
Quad Digitally Controlled Potentiometer (XDCP™)
Low Noise, Low Power, I2C® Bus, 256 Taps
The ISL22343 integrates four digitally controlled
potentiometers (DCP), control logic and non-volatile memory
on a monolithic CMOS integrated circuit.
The digitally controlled potentiometer is 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. The potentiometer has an associated
volatile Wiper Register (WRi) and a non-volatile Initial Value
Register (IVRi) that can be directly written to and read by the
user. The contents of the WRi control the position of the
corresponding wiper. At power up the device recalls the
contents of the DCP’s IVRi to the correspondent WRi.
The ISL22343 also has 11 general purpose non-volatile
registers that can be used as storage of lookup table for
multiple wiper position or any other valuable information.
The ISL22343 features a dual supply, that is beneficial for
applications requiring a bipolar range for DCP terminals
between V- and VCC.
Each DCP can be used as three-terminal potentiometers or
as two-terminal variable resistors in a wide variety of
applications including control, parameter adjustments, and
signal processing.
Features
• Four potentiometers in one package
• 256 resistor taps
•I2C serial interface
- Three address pins, up to eight devices per bus
• Non-volatile EEPROM storage of wiper position
• 11 General Purpose non-volatile registers
• High reliability
- Endurance: 1,000,000 data changes per bit per register
- Register data retention: 50 years @ T
≤ +55°C
• Wiper resistance: 70
Ω typical @ 1mA
• Standby current <4µA max
• Shutdown current <4µA max
• Dual power supply
- VCC = 2.25V to 5.5V
- V- = -2.25V to -5.5V
•10k
Ω, 50kΩ or 100kΩ total resistance
• Extended industrial temperature range: -40°C to +125°C
• 20 Ld TSSOP or 20 Ld QFN
• Pb-free (RoHS compliant)
Ordering Information
PART NUMBER
(Notes 1, 2)
PART MARKING
RESISTANCE
OPTION
(k
Ω)
TEMPERATURE
RANGE
(°C)
PACKAGE
(Pb-free)
PKG. DWG. #
ISL22343TFV20Z
22343 TFVZ
100
-40 to +125
20 Ld TSSOP
M20.173
ISL22343TFR20Z
22343 TFRZ
100
-40 to +125
20 Ld QFN
L20.5x5
ISL22343UFV20Z
22343 UFVZ
50
-40 to +125
20 Ld TSSOP
M20.173
ISL22343UFR20Z
22343 UFRZ
50
-40 to +125
20 Ld QFN
L20.5x5
ISL22343WFV20Z
22343 WFVZ
10
-40 to +125
20 Ld TSSOP
M20.173
ISL22343WFR20Z
22343 WFRZ
10
-40 to +125
20 Ld QFN
L20.5x5
NOTES:
1. 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.
2. Add “-TK” suffix for tape and reel. Please refer to TB347 for details on reel specifications
Data Sheet
March 13, 2008


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