ISL22343UFV20Z Renesas

ISL22343 Quad Digitally Controlled Potentiometer (XDCP) Data Sheet March 13, 2008 FN6423.1 2 Low Noise, Low Power, I C Bus, 256 Taps Features The ISL22343 integrates four digitally controlled Four potentiometers in one package potentiometers (DCP), control logic and non-volatile memory 256 resistor taps on a monolithic CMOS integrated circuit. 2 I C serial interface The digitally controlled potentiometer is implemented with a - Three address pins, up to eight devices per bus combination of resistor elements and CMOS switches. The Non-volatile EEPROM storage of wiper position position of the wipers are controlled by the user through the 2 I C bus interface. The potentiometer has an associated 11 General Purpose non-volatile registers volatile Wiper Register (WRi) and a non-volatile Initial Value High reliability Register (IVRi) that can be directly written to and read by the - Endurance: 1,000,000 data changes per bit per register user. The contents of the WRi control the position of the C - Register data retention: 50 years T +55 corresponding wiper. At power up the device recalls the contents of the DCPs IVRi to the correspondent WRi. Wiper resistance: 70 typical 1mA The ISL22343 also has 11 general purpose non-volatile Standby current <4A max registers that can be used as storage of lookup table for Shutdown current <4A max multiple wiper position or any other valuable information. Dual power supply The ISL22343 features a dual supply, that is beneficial for - VCC = 2.25V to 5.5V applications requiring a bipolar range for DCP terminals - V- = -2.25V to -5.5V between V- and VCC. 10k, 50k or 100k total resistance Each DCP can be used as three-terminal potentiometers or as two-terminal variable resistors in a wide variety of Extended industrial temperature range: -40C to +125C applications including control, parameter adjustments, and 20 Ld TSSOP or 20 Ld QFN signal processing. Pb-free (RoHS compliant) Ordering Information RESISTANCE TEMPERATURE PART NUMBER OPTION RANGE PACKAGE (Notes 1, 2) PART MARKING (k) (C) (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 CAUTION: These devices are sensitive to electrostatic discharge follow proper IC Handling Procedures. 1 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 Block Diagram VCC V- RH3 WR3 RW3 SCL POWER-UP, SDA RL3 CONTROL 2 I C RH2 A0 AND INTERFACE STATUS A1 WR2 RW2 LOGIC A2 RL2 RH1 WR1 RW1 RL1 NON-VOLATILE RH0 REGISTERS WR0 RW0 RL0 GND Pinouts ISL22343 ISL22343 (20 LEAD TSSOP) (20 LEAD QFN) TOP VIEW TOP VIEW RH3 1 20 RW0 RL3 2 19 RL0 20 19 18 17 16 RW3 3 18 RH0 RW3 1 15 V- A2 4 17 V- 2 14 A2 VCC SCL 5 16 VCC SDA 6 15 A1 3 13 SCL A1 GND 7 14 A0 4 12 A0 SDA RW2 8 13 RH1 5 11 RL2 9 12 RL1 RH1 GND RH2 10 11 RW1 67 8 9 10 FN6423.1 2 March 13, 2008 RW2 RL3 RL2 RH3 RH2 RW0 RW1 RL0 RL1 RH0