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Digital Potentiometer ICs 257 TAP FL RNG IND QD I2C DCP 20LD

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ISL22343WFV20Z General Description

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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.

Key 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 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, 50k or 100k total resistance
  • Extended industrial temperature range: -40°C to +125°C
  • 20 Ld TSSOP or 20 Ld QFN
  • Pb-free (RoHS compliant)


Manufacturer Renesas Electronics Product Category Digital Potentiometer ICs
RoHS Details Series ISL22343
Resistance 10 kOhms Temperature Coefficient 85 PPM / C
Tolerance 20 % Number of POTs Quad
Taps per POT 256 Wiper Memory Non Volatile
Digital Interface Serial (I2C) Operating Supply Voltage 2.25 V to 5.5 V, - 2.25 V to - 5.5 V
Operating Supply Current 6 uA Minimum Operating Temperature - 40 C
Maximum Operating Temperature + 125 C Mounting Style PCB Mount
Termination Style SMD/SMT Package / Case TSSOP-20
Taper Linear Brand Renesas / Intersil
Description/Function Quad digitally controlled potentiometer Height 0 mm
Length 6.5 mm Product Type Digital Potentiometer ICs
Factory Pack Quantity 74 Subcategory Digital Potentiometer ICs
Supply Type Dual Supply Voltage - Max 5.5 V, - 5.5 V
Supply Voltage - Min 2.25 V, - 2.25 V Width 4.4 mm
Unit Weight 0.002540 oz


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Buying Guide

  • What is the lifespan of ISL22343WFV20Z?

    The lifespan of ISL22343WFV20Z depends on various factors such as the quality of materials used, operating conditions, and the manufacturer's recommended usage time. The datasheet provided by the manufacturer specifies the expected lifespan of the product.

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