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CAT5411WI25 Datasheet(PDF) 1 Page - ON Semiconductor |
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CAT5411WI25 Datasheet(HTML) 1 Page - ON Semiconductor |
1 / 14 page Semiconductor Components Industries, LLC, 2013 July, 2013 − Rev. 13 1 Publication Order Number: CAT5411/D CAT5411 Dual Digital Potentiometer (POT) with 64 Taps and SPI Interface Description The CAT5411 is two digital potentiometers (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 two potentiometers is automatically loaded into its respective wiper control register. The CAT5411 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 SPI Interface: Mode (0, 0) and (1, 1) 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 24-lead SOIC and 24-lead TSSOP Industrial Temperature Ranges These Devices are Pb-Free, Halogen Free/BFR Free and are RoHS Compliant http://onsemi.com TSSOP24 Y SUFFIX CASE 948AR PIN CONNECTIONS SOIC−24 (W) (Top View) NC VCC RL0 RH0 1 RW0 CS NC NC NC A0 SOIC−24 W SUFFIX CASE 751BK See detailed ordering and shipping information in the package dimensions section on page 12 of this data sheet. ORDERING INFORMATION SO HOLD SCK NC NC WP SI A1 RL1 RH1 CAT5411 NC NC RW1 GND TSSOP24 (Y) (Top View) CAT5411 WP CS RW0 RH0 RL0 VCC NC NC NC NC A0 SO SI A1 RL1 RH1 RW1 GND NC NC NC NC SCK HOLD 1 |
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