Quad Digitally Programmable Potentiometers DPP with 64 Taps and 2-wire Interface
DESCRIPTION
The CAT5241 is four Digitally Programmable Potentiometers DPPs™ integrated with control logic
and 16 bytes of NVRAM memory. Each DPP 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
FEATURES
■Four linear-taper digitally programmable potentiometers
■64 resistor taps per potentiometer
■End to end resistance 2.5kΩ, 10kΩ, 50kΩor 100kΩ
■Potentiometer control and memory access via 2-wire interface I2C like
■Low wiper resistance, typically 80Ω
■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
■20-lead SOIC and TSSOP packages
■Industrial temperature range
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