SOURCE: Intersil

June 18, 2008 10:47 ET

World's Smallest Non-Volatile Push-Button DCPs Combine Performance and Flexibility for Easy-to-Design Control Solutions

Intersil's 2.1mm x 1.6mm Micro-QFN ISL22511 and ISL22512 Digitally Controlled Potentiometers Feature Auto-Store and Auto Increment/Decrement Functions and Are Rated for Use up to 125 Degrees C

MILPITAS, CA--(Marketwire - June 18, 2008) - Intersil Corporation (NASDAQ: ISIL), a world leader in the design and manufacture of high-performance analog semiconductors, today announced the ISL22511 and ISL22512, the world's smallest non-volatile push-button DCPs. These easy-to-use, rugged devices provide designers flexibility, while saving board space and power.

The ISL22511/12 come in very small micro-QFN packaging (2.1mm x 1.6mm) and are 25% smaller than their nearest competitor.

With a simple, easy-to-use push-button interface, the ISL22511 and ISL22512 can operate independently from a microcontroller. In fact, these devices have an automated store feature, eliminating the need for an extra step or microcontroller to activate the "store" function. This stores the last wiper setting in the integrated EEPROM memory so the device will recall the last wiper position when it is powered on.

For flexibility, the two devices have multiple modes. One mode activates the auto-store mode and another keeps manual-store and activate wiper storage on command. Both the ISL22511 and ISL22512 also feature a user-activated, power-saving shutdown mode that prevents additional current from flowing through the DCP when initiated.

These devices also have a two-mode auto increment/decrement function that allows the end user to hold the pin until it achieves the desired position. This is very convenient in the 32-tap ISL22511, allowing the user to transition through all the wiper positions without repeatedly pressing a button.

The ISL22511 is a 32-tap device designed for applications needing wider dynamic range and higher resolution than a 16-tap device. Often, however, 16 settings are sufficient for adding an end-user adjustment feature. For those applications, Intersil offers the 16-tap ISL22512.

With a high temperature rating of 125 degrees C, the ISL22511 and ISL22512 are both rugged DCPs able to withstand the tough environments of automotive and industrial temperature ranges.

For those applications that do not need to store the wiper position or use the EEPROM elsewhere in the circuit, Intersil also offers the volatile ISL23511 and ISL23512, 32-tap and 16-tap respectively.

Pricing and Availability

The ISL22511 is available now in a 10-lead micro-TQFN package priced at $1.18 per unit in 1,000-unit quantities. The device is also available in an 8-lead SOIC package priced at $1.16 per unit in 1,000 unit quantities.

The ISL22512 is available now in a 10-lead micro-TQFN package priced at $0.75 per unit in 1,000-unit quantities. The device is also available in an 8-lead SOIC package priced at $0.73 per unit in 1,000 unit quantities.

For more information on the ISL22511, please go to,1477,ISL22511,0.html

For more information on the ISL22512, please go to,1477,ISL22512,0.html

Note to editors: To view a high-resolution downloadable photo of ISL22511 and ISL22512, visit Intersil's photo room at:

About Intersil's Digital Controlled Potentiometer (DCP) Products

Digitally Controlled Potentiometers -- also known as DCPs, RDACs, Variable Resistors, Voltage Dividers, Digital Pots, Digital Potentiometers or EEPOTS -- are one of Intersil's most prolific product families. The company offers the widest selection of low-to-high resolution digitally-controlled potentiometers in single, dual and quad configurations. Available in both linear and non-linear tapers, these digital potentiometers replace mechanical potentiometers and trim resistors in applications where digital control allows microprocessor interfacing and extended functionality. Intersil continues to innovate in the general purpose markets with the smallest, highest operating temperature, and integrated digital control products for industrial, medical, display and other consumer applications. Intersil DCPs can be used anywhere an adjustment or calibration is needed.

To learn more about Intersil's broad DCP portfolio, visit

About Intersil

Intersil Corporation is a leader in the design and manufacture of high-performance analog semiconductors. The Company's products address some of the industry's fastest growing markets, such as, flat panel displays, cell phones, other handheld systems, and notebooks. Intersil's product families address power management functions and analog signal processing functions. Intersil products include ICs for battery management, hot-swap and hot-plug controllers, linear regulators, power sequencers, supervisory ICs, bridge drivers, PWM controllers, switching DC/DC regulators and power MOSFET drivers; optical storage laser diode drivers; DSL line drivers; video and high-performance operational amplifiers; data converters; interface ICs; analog switches and multiplexers; crosspoint switches; voice-over-IP devices; and ICs for military, space and radiation-hardened applications. For more information about Intersil or to find out how to become a member of our winning team, visit the Company's web site and career page at

Contact Information

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    Rob Purdie
    Public Relations Manager
    Intersil Corporation
    (321) 724-7688