DS1804-100 (Dallas)
DESCRIPTION
The DS1804 NV Trimmer Potentiometer is a nonvolatile digital potentiometer having 100 positions. The device provides an ideal method for low-cost trimming applications using a CPU or manual control input with minimal external circuitry. Wiper position of the DS1804 can be stored in EEPROM memory on demand. The device’s wiper position is manipulated by a 3-terminal port that provides an increment/decrement counter controlled interface. This port consists of the control inputs CS , INC , and U/ D . The DS1804 is available in three resistor grades, which include a 10 kΩ, 50 kΩ, and 100 kΩ. The device is provided in an industrial temperature grade. Additionally, the DS1804 will operate from 3V or 5V supplies and is ideal for portable application requirements. Three packaging options are available and include the 8-pin (300-mil) DIP, 8-pin (150-mil) SOIC, 8-pin (118-mil) uSOP, and the Flip Chip Package.
This potentiometer can be soldered to the anlog joystick of any gaming device allowing you to controle the potentiometer with pulses. This chip is a must for projects like head tracking, Tilt, Virtual Reality, light Gun Manufacturing this is the simplest chip to use as it just requires high and low pulses to 3 pins to change the resistence. Also Mouser is out of stock as I bought the last ones they have...
