Intersil ISL22426
The ISL22426 integrates two digitally controlled potentiometers (DCP) and non-volatile memory on a monolithic CMOS integrated circuit. The digitally controlled potentiometers are implemented with a combination of resistor elements and CMOS switches. The position of the wipers are controlled by the user through the SPI serial interface.FEATURES
● Two potentiometers in one package● 128 resistor taps
● SPI serial interface
● Non-volatile storage of wiper position
● Wiper resistance: 70Ω typical @ 3.3V
● Shutdown mode
● Shutdown current 5µA max
● Power supply: 2.7V to 5.5V
● 50kΩ or 10kΩ total resistance
● High reliability - Endurance: 1,000,000 data changes per bit per register - Register data retention: 50 years @ T <55°C
● 14 Lead TSSOP Pinout ISL22426 (14 LEAD TSSOP) TOP VIEW
● Pb-free plus anneal product (RoHS compliant) VCC SHDN RH0 RL0 RW0 NC SCK 1 2 3 4 5 6 7 14 13 12 11 10 9 8 SDI CS RH1 RL1 RW1 GND SDO Ordering Information PART NUMBER ISL22426UFV14Z (Notes 1, 2) ISL22426WFV14Z (Notes 1, 2) NOTES: 1. Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination finish, which are 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.