CAT5261YI-00-T2

The CAT5261 is two Digitally Programmable Potentiometers (DPPs™) integrated with control logic and 8 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 nonvolatile data registers is via a SPI serial bus. On powerup, the contents of the first data register (DR0) for each of the potentiometers is automatically loaded into its respective wiper control register.
FEATURES
• Two linear-taper digitally programmable potentiometers
• 256 resistor taps per potentiometer
• End to end resistance 50 kΩ or 100 kΩ
• Potentiometer control and memory access via SPI interface
• Low wiper resistance, typically 100 Ω
• 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 1µA
• 1,000,000 nonvolatile WRITE cycles
• 100 year nonvolatile memory data retention
• 24-lead SOIC and 24-lead TSSOP
• Industrial temperature range
• Industrial temperature range