The document describes the features and characteristics of the DS1855 series products, including two linear taper potentiometers, 256 bytes of EEPROM memory, 2-wire interface, etc.
The DS1855 is a dual nonvolatile digital potentiometer and secure memory device that includes one 100-position linear taper potentiometer and one 256-position linear taper potentiometer. It also features 256 bytes of EEPROM memory for storing configuration or calibration data.
| Supply Voltage | +2.7V to +5.5V |
|---|---|
| EEPROM Size | 256 bytes |
| Interface | 2-wire interface |
The DS1855 contains two linear taper potentiometers: one with 100 positions and one with 256 positions.
The WP pin is used for write protection; if set to logic 1, both memory and potentiometer wiper settings are write-protected.
The device address is determined by the logic levels of address pins AO through A2.