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CAT5259WI-50-T1 Datasheet(PDF) 1 Page - ON Semiconductor |
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CAT5259WI-50-T1 Datasheet(HTML) 1 Page - ON Semiconductor |
1 / 15 page Semiconductor Components Industries, LLC, 2013 July, 2013 − Rev. 11 1 Publication Order Number: CAT5259/D CAT5259 Quad Digital Potentiometer (POT) with 256 Taps and I2C Interface Description The CAT5259 is four digital POTs integrated with control logic and 16 bytes of NVRAM memory. Each digital POT consists of a series of 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 8-bit control register (WCR) independently controls the wiper tap switches for each digital POT. Associated with each wiper control register are four 8-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 registers. The CAT5259 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. It is available in the 0C to 70C commercial and −40C to 85C industrial operating temperature ranges and offered in a 24-lead SOIC and TSSOP package. Features Four Linear Taper Digital Potentiometers 256 Resistor Taps per Potentiometer End to End Resistance 50 kW or 100 kW Potentiometer Control and Memory Access via I2C Interface Low Wiper Resistance, Typically 100 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 V Operation Standby Current less than 1 mA 1,000,000 Nonvolatile WRITE Cycles 100 Year Nonvolatile Memory Data Retention 24-lead SOIC and 24-lead TSSOP Packages Industrial Temperature Range These Devices are Pb-Free, Halogen Free/BFR Free and are RoHS Compliant http://onsemi.com TSSOP−24 Y SUFFIX CASE 948AR PIN CONNECTIONS SOIC−24 (W) TSSOP−24 (Y) (Top View) A3 NC A0 RW3 1 RH3 RL3 SCL RL2 RH2 RW2 SOIC−24 W SUFFIX CASE 751BK See detailed ordering and shipping information in the package dimensions section on page 13 of this data sheet. ORDERING INFORMATION NC GND RW1 RH1 RL1 NC VCC RL0 RH0 RW0 CAT5259 A1 SDA A2 WP |
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