DP7269

Dual Digital Potentiometers (DP) with 256 Taps and 2-wire Interface DP7269 FEATURES Four linear taper digital potentiometers 256 resistor taps per potentiometer End to end resistance 50kŸ or 100kŸ Potentiometer control and memory access via 2-wire interface (I2C like) Low wiper resistance, typically 100Ÿ 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 TSSOP packages Industrial temperature range For Ordering Information details, see page 15. PIN CONFIGURATION SOIC (W) TSSOP (Y) NC 1 A0 2 NC 3 NC 4 NC 5 NC 6 VCC 7 RLO 8 RHO 9 RWO 10 A2 11 ¯W¯P¯ 12 24 A3 23 SCL 22 NC 21 NC 20 NC 19 NC 18 GND 17 RW1 16 RH1 15 RL1 14 A1 13 SDA DESCRIPTION The DP7269 is two digital potentiometers (DPs) integrated with control logic and 18 bytes of NVRAM memory. E...