CAT5409 Overview
The CAT5409 is four Digitally Programmable Potentiometers (DPP™) integrated with control logic and 16 bytes of NVRAM memory. A separate 6-bit control register (WCR) independently controls the wiper tap position for each DPP. Associated with each wiper control register are four 6-bit non-volatile memory data registers (DR) used for storing up to four wiper settings.
CAT5409 Key Features
- Four linear taper digitally programmable potentiometers
- 64 resistor taps per potentiometer
- End to end resistance 2.5kΩ, 10kΩ, 50kΩ or 100kΩ
- I²C interface
- Low wiper resistance, typically 80Ω
- Four non-volatile wiper settings for each potentiometer
- 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
