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Renesas Electronics Components Datasheet

ISL22319 Datasheet

Single Digitally Controlled Potentiometer

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ISL22319
OBSOLETE PRODUCT
POSSIBLE SUBSTITUTE PRODUCT
ISL22316
Single Digitally Controlled Potentiometer (XDCP™) Low Noise, Low Power, I2C
Bus, 128 Taps, Wiper Only
DATASHEET
FN6310
Rev 1.00
September 9, 2009
The ISL22319 integrates a single digitally controlled
potentiometer (DCP) 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 (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 content of the
DCP’s IVR to the WR.
The DCP can be used as a voltage divider in a wide variety
of applications including control, parameter adjustments, AC
measurement and signal processing.
Pinout
SCL
SDA
A1
A0
ISL22319
(8 LD MSOP)
TOP VIEW
18
27
36
45
VCC
RW
SHDN
GND
Features
• 128 resistor taps
• I2C serial interface
- Two address pins, up to four devices/bus
• Non-volatile storage of wiper position
• Wiper resistance: 70typical @ 3.3V
• Shutdown mode
• Shutdown current 5µA max
• Power supply: 2.7V to 5.5V
• 50kor 10ktotal resistance
• High reliability
- Endurance: 1,000,000 data changes per bit per register
- Register data retention: 50 years @ T +55 °C
• 8 Ld MSOP
• Pb-free (RoHS compliant)
Ordering Information
PART
NUMBER
(Note)
ISL22319UFU8Z*
PART
MARKING
319UZ
RESISTANCE OPTION
(k)
50
TEMP. RANGE
(°C)
-40 to +125
PACKAGE
(Pb-free)
8 Ld MSOP
PKG.
DWG. #
M8.118
ISL22319WFU8Z*
319WZ
10
-40 to +125
8 Ld MSOP
M8.118
*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.
FN6310 Rev 1.00
September 9, 2009
Page 1 of 13


Renesas Electronics Components Datasheet

ISL22319 Datasheet

Single Digitally Controlled Potentiometer

No Preview Available !

ISL22319
Block Diagram
SCL
SDA
A0
A1
I2C
INTERFACE
VCC
POWER-UP
INTERFACE,
CONTROL
AND
STATUS
LOGIC
WR
RW
SHDN
NON-VOLATILE
REGISTERS
Pin Descriptions
MSOP PIN
1
2
3
4
5
6
7
8
SYMBOL
SCL
SDA
A1
A0
GND
SHDN
RW
VCC
GND
DESCRIPTION
Open drain I2C interface clock input
Open drain serial data I/O for the I2C interface
Device address input for the I2C interface
Device address input for the I2C interface
Device ground pin
Shutdown active low input
“Wiper” terminal of DCP
Power supply pin
FN6310 Rev 1.00
September 9, 2009
Page 2 of 13


Part Number ISL22319
Description Single Digitally Controlled Potentiometer
Maker Renesas
Total Page 13 Pages
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