The new WinPot Nonvolatile Digital Potentiometer IC features an up/down interface and 100 taps. The family of single-channel up/down ICs already features 16-, 32-, 64-, 128-, and 256-tap nonvolatile digital potentiometers with 10-, 50-, or 100-kW resistance values. The up/down interface is easy to use and common in the industry. It employs only three wires to control wiper movement or store tap value in the nonvolatile memory. All chips in the family are offered with or without an output buffer, enabling users to choose a device that precisely fits their circuit requirements.

The WinPot series is targeted at consumer, optical networking, temperature control systems, flat panel displays (for brightness and contrast adjustment), volume control, and power supply applications.

The chips can be used as a three-terminal potentiometer or as a two-terminal variable resistor in a wide variety of industrial and wireless applications that require exacting performance standards. The devices operate over a wide operating voltage, ranging from 2.7 to 5.5 V, with typical stand-by current of 0.1 µA. All of the WMS71xx ICs are offered in eight-pin MSOP, SOIC, and PDIP packaging. The WMS7170 device, featuring 100 taps, costs less than $0.60 in 10,000-piece quantities.

Winbond Electronics Corp.
(978) 794-5551
www.winbond.com