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CAT5221YI00 Datasheet(PDF) 1 Page - ON Semiconductor |
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CAT5221YI00 Datasheet(HTML) 1 Page - ON Semiconductor |
1 / 15 page Semiconductor Components Industries, LLC, 2013 July, 2013 − Rev. 14 1 Publication Order Number: CAT5221/D CAT5221 Dual Digital Potentiometer (POT) with 64 Taps and I2C Interface Description The CAT5221 is two digital POTs integrated with control logic and 16 bytes of NVRAM memory. Each digital POT consists of a series of 63 resistive elements connected between two externally accessible end points. The tap points between each resistive element are connected to the wiper outputs with CMOS switches. A separate 6-bit control register (WCR) independently controls the wiper tap switches for each digital POT. Associated with each wiper control register are four 6-bit non-volatile memory data registers (DR) used for storing up to four wiper settings. Writing to the wiper control register or any of the non-volatile data registers is via a I2C serial bus. On power-up, the contents of the first data register (DR0) for each of the four potentiometers is automatically loaded into its respective wiper control register (WCR). The CAT5221 can be used as a potentiometer or as a two terminal, variable resistor. It is intended for circuit level or system level adjustments in a wide variety of applications. Features Two Linear-taper Digital Potentiometers 64 Resistor Taps per Potentiometer End to End Resistance 2.5 kW, 10 kW, 50 kW or 100 kW Potentiometer Control and Memory Access via I2C Interface Low Wiper Resistance, Typically 80 W Nonvolatile Memory Storage for Up to Four Wiper Settings for Each Potentiometer Automatic Recall of Saved Wiper Settings at Power Up 2.5 to 6.0 Volt Operation Standby Current less than 1 mA 1,000,000 Nonvolatile WRITE Cycles 100 Year Nonvolatile Memory Data Retention 20-lead SOIC and TSSOP Packages Industrial Temperature Range These Devices are Pb-Free, Halogen Free/BFR Free and are RoHS Compliant http://onsemi.com TSSOP−20 Y SUFFIX CASE 948AQ PIN CONNECTIONS SOIC−20 (W) TSSOP−20 (Y) (Top View) VCC RW0 RL0 RH0 1 A0 A2 NC NC NC A1 SOIC−20 W SUFFIX CASE 751BJ See detailed ordering and shipping information in the package dimensions section on page 13 of this data sheet. ORDERING INFORMATION A3 SCL NC NC NC RW1 RL1 RH1 SDA GND CAT5221 |
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