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ISL22346WFV20Z Arkusz danych(PDF) 1 Page - Intersil Corporation |
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ISL22346WFV20Z Arkusz danych(HTML) 1 Page - Intersil Corporation |
1 / 13 page 1 ® FN6177.0 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) and XDCP are registered trademarks of Intersil Americas Inc. Copyright Intersil Americas Inc. 2006. All Rights Reserved All other trademarks mentioned are the property of their respective owners. ISL22346 Quad Digitally Controlled Potentiometers (XDCP™) Low Noise, Low Power I2C® Bus, 128 Taps The ISL22346 integrates four 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 I2C bus interface. Each potentiometer has an associated volatile Wiper Register (WR) and a non-volatile Initial Value Register (IVR) that can be directly written to and read by the user. The contents of the WR controls the position of the wiper. At power-up the device recalls the contents of the two DCP’s IVR to the corresponding WRs. The DCPs can be used as a three-terminal potentiometers or as a two-terminal variable resistors in a wide variety of applications including control, parameter adjustments, and signal processing. Pinout Features • Four potentiometers in one package • 128 resistor taps •I2C serial interface - Three address pins, up to eight devices/bus • Non-volatile storage of wiper position • Wiper resistance: 70 Ω typical @ 3.3V • Shutdown mode • Shutdown current 5µA max • Power supply: 2.7V to 5.5V •50k Ω or 10kΩ total resistance • High reliability - Endurance: 1,000,000 data changes per bit per register - Register data retention: 50 years @ T <55°C • 20 Ld TSSOP • Pb-free plus anneal product (RoHS compliant) ISL22346 (20 LD TSSOP) TOP VIEW RW0 RL0 RH0 SHDN VCC A1 A0 RH1 RL1 RW1 20 19 18 17 16 15 14 13 12 11 1 2 3 4 5 6 7 8 9 10 RH3 RL3 RW3 A2 SCL SDA GND RW2 RL2 RH2 Ordering Information PART NUMBER PART MARKING RESISTANCE OPTION (k Ω) TEMP. RANGE (°C) PACKAGE PKG. DWG. # ISL22346UFV20Z (Notes 1, 2) 22346 UFVZ 50 -40 to +125 20 Ld TSSOP (Pb-Free) M20.173 ISL22346WFV20Z (Notes 1, 2) 22346 WFVZ 10 -40 to +125 20 Ld TSSOP (Pb-Free) M20.173 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. 2. Add “-TK” suffix for 1,000 Tape and Reel option Data Sheet July 28, 2006 |
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