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Renesas Electronics Components Datasheet

ISL22343 Datasheet

Quad Digitally Controlled Potentiometer

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DATASHEET
ISL22343
Quad Digitally Controlled PoteDnatitoamSehteere(tXDCP™) Low Noise,ALuogwusPto1w7e, r2, 0I21C5
Bus, 256 Taps
FN6423
Rev 2.00
August 17, 2015
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: 70typical @ 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 50kor 100ktotal 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)
TEMP.
RANGE
(°C)
PACKAGE PKG.
(Pb-free) DWG. #
ISL22343TFV20Z
22343 TFVZ
(No longer available, recommended replacement: ISL22343WFR20Z-TK)
100 -40 to +125 20 Ld TSSOP M20.173
ISL22343TFR20Z
22343 TFRZ
(No longer available, recommended replacement: ISL22343WFR20Z-TK
100 -40 to +125 20 Ld QFN L20.5x5
ISL22343UFV20Z
22343 UFVZ
(No longer available, recommended replacement: ISL22343WFR20Z-TK
50 -40 to +125 20 Ld TSSOP M20.173
ISL22343UFR20Z
22343 UFRZ
(No longer available, recommended replacement: ISL22343WFR20Z-TK
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
FN6423 Rev 2.00
August 17, 2015
Page 1 of 19


Renesas Electronics Components Datasheet

ISL22343 Datasheet

Quad Digitally Controlled Potentiometer

No Preview Available !

ISL22343
Block Diagram
VCC
V-
SCL
SDA
A0
A1
A2
I2C
INTERFACE
POWER-UP,
CONTROL
AND
STATUS
LOGIC
NON-VOLATILE
REGISTERS
WR3
WR2
WR1
WR0
GND
RH3
RW3
RL3
RH2
RW2
RL2
RH1
RW1
RL1
RH0
RW0
RL0
Pinouts
ISL22343
(20 LEAD TSSOP)
TOP VIEW
RH3 1
RL3 2
RW3 3
A2 4
SCL 5
SDA 6
GND 7
RW2 8
RL2 9
RH2 10
20 RW0
19 RL0
18 RH0
17 V-
16 VCC
15 A1
14 A0
13 RH1
12 RL1
11 RW1
ISL22343
(20 LEAD QFN)
TOP VIEW
20 19 18 17 16
RW3 1
A2 2
SCL 3
SDA 4
GND 5
15 V-
14 VCC
13 A1
12 A0
11 RH1
6 7 8 9 10
FN6423 Rev 2.00
August 17, 2015
Page 2 of 19


Part Number ISL22343
Description Quad Digitally Controlled Potentiometer
Maker Renesas
Total Page 19 Pages
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