DATASHEET ISL22326 FN6176 2 Rev 3.00 Dual Digitally Controlled Potentiometers (XDCP) Low Noise, Low Power, I C September 9, 2015 Bus, 128 Taps The ISL22326 integrates two digitally controlled potentiometers Features (XDCP) and non-volatile memory on a monolithic CMOS Two potentiometers in one package integrated circuit. 128 resistor taps The digitally controlled potentiometers are implemented with 2 a combination of resistor elements and CMOS switches. The I C serial interface position of the wipers are controlled by the user through the - Three address pins, up to eight devices/bus 2 I C bus interface. Each potentiometer has an associated Non-volatile storage of wiper position volatile Wiper Register (WR) and a non-volatile Initial Value Wiper resistance: 70 typical V = 3.3V Register (IVR) that can be directly written to and read by the CC user. The contents of the WR controls the position of the Shutdown mode wiper. At power-up the device recalls the contents of the two Shutdown current 5A max DCPs IVR to the corresponding WRs. Power supply: 2.7V to 5.5V The DCPs can be used as three-terminal potentiometers or as two-terminal variable resistors in a wide variety of 50kor 10k total resistance applications including control, parameter adjustments, and High reliability signal processing. - Endurance: 1,000,000 data changes per bit per register - Register data retention: 50 years T < +55C 14 Ld TSSOP or 16 Ld QFN package Pb-free (RoHS compliant) Pinouts ISL22326 ISL22326 (14 LD TSSOP) (16 LD QFN) TOP VIEW TOP VIEW V 1 14 A1 CC SHDN 2 13 A0 16 15 14 13 RH0 3 12 RH1 RL0 RH0 1 12 RH1 4 11 RL1 RW0 5 RW1 10 RL0 2 11 RL1 6 A2 9 GND 3 10 RW1 RW0 SCL 7 SDA 8 4 9 NC NC 576 8 FN6176 Rev 3.00 Page 1 of 17 September 9, 2015 A2 SHDN V SCL CC A1 SDA A0 GNDISL22326 Ordering Information RESISTANCE PART NUMBER OPTION TEMP. RANGE PACKAGE (Note) PART MARKING (k ) (C) (RoHS Compliant) PKG. DWG. ISL22326UFV14Z* 22326 UFVZ 50 -40 to +125 14 Ld TSSOP M14.173 (No longer available, recommended replacement: ISL22326WFR16Z-TK) ISL22326UFR16Z* 223 26UFZ 50 -40 to +125 16 Ld 4x4 QFN L16.4x4A (No longer available, recommended replacement: ISL22326WFR16Z-TK) ISL22326WFV14Z* 22326 WFVZ 10 -40 to +125 14 Ld TSSOP M14.173 ISL22326WFR16Z* 223 26WFZ 10 -40 to +125 16 Ld 4x4 QFN L16.4x4A *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. Block Diagram V CC SCL RH1 POWER-UP SDA INTERFACE, 2 WR1 RW1 I C CONTROL A0 INTERFACE AND STATUS RL1 A1 LOGIC A2 RH0 RW0 WR0 NON- RL0 VOLATILE REGISTERS SHDN GND FN6176 Rev 3.00 Page 2 of 17 September 9, 2015