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CAT5401WI50 Datasheet(PDF) 1 Page - ON Semiconductor |
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CAT5401WI50 Datasheet(HTML) 1 Page - ON Semiconductor |
1 / 15 page Semiconductor Components Industries, LLC, 2013 July, 2013 − Rev. 11 1 Publication Order Number: CAT5401/D CAT5401 Quad Digital Potentiometer (POT) with 64 Taps and SPI Interface Description The CAT5401 is four 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 SPI 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. The CAT5401 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 Four 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 SPI Interface: Mode (0, 0) and (1, 1) 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 Volt 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 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) (Top View) NC VCC RL0 RH0 1 RW0 CS RL3 RH3 RW3 A0 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 SO HOLD SCK RL2 RH2 WP SI A1 RL1 RH1 CAT5401 RW2 NC RW1 GND TSSOP−24 (Y) (Top View) CAT5401 WP CS RW0 RH0 RL0 VCC NC RL3 RH3 RW3 A0 SO SI A1 RL1 RH1 RW1 GND NC RW2 RH2 RL2 SCK HOLD 1 |
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