The DS3930 contains six 256-position nonvolatile (NV) potentiometers, 64 bytes of NV user EEPROM memory, and four programmable NV I/O pins. The six potentiometers all share a common low side. The potentiometers are separated into two groups of three 50kΩ potentiometers in parallel. Each group of three potentiometers shares a common high side and forms an equivalent resistance of 16.6kΩ (three 50kΩ potentiometers in parallel). Applications * Fiber Optic Transceiver Modules * Mobile Phones and PDAs * Portable Electronics * Power Supply Calibration * Radio Tuners * RF Transceivers * Small, Low-Cost Replacement for Mechanical Potentiometers Features * Voltage References * Six 256-Position NV Potentiometers * Four General-Purpose NV I/O Pins * 64 Bytes of User EEPROM Memory * 0 to 5.5V on Any Potentiometer Terminal, Independent of VCC * All Six Potentiometers Share a Common Low Side * Potentiometers Separated into Two Groups of Three Potentiometers, Each Sharing a Common High Side * 2-Wire Serial Interface * Wide Supply Range (2.7V to 5.5V) * Up to Eight DS3930s Can Share the Same 2-Wire Bus https://elecena.pl/product/22302617/hex-nonvolatile-potentiometer-with-i-o-and-memory 2022-12-25 https://elecena.pl/product/22302617/hex-nonvolatile-potentiometer-with-i-o-and-memory 2025-01-22