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