onsemi CAT5259WI-00-T1

Digital Potentiometer (POT), 256-Taps, NV, Quad, I2C

Digital Potentiometer 256POS 100KOhm Quad 24-Pin SOIC T/R

Digital Potentiometer, 4 Func, 100000ohm, 2-wire Serial Control Interface, 256 Positions, PDSO24

IC DGT POT 100KOHM 256TAP 24SOIC

The CAT5259 is four digitally programmable potentiometers (DPPs) integrated with control logic and 16 bytes of NVRAM memory. Each DPP 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 DPP. 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 2-wire 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.