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System monitor responds to multiple computing needs

Posted: 29 Sep 2008 ?? ?Print Version ?Bookmark and Share

Keywords:system? monitor? computing markets?

Targeting industrial and computing markets, Integrated Device Technology Inc. (IDT) has created a single-chip system that monitors multiple computing processes simultaneously.

The 9WDV3501 system monitor is designed to check the voltage, processor operation and temperature in any type of computing system, along with servers, routers, storage area networks and point-of-sale registers. The device prevents possible errors in these types of systems or unsafe mode cases, reducing potential system damage and other performance errors.

The system monitor is pin-programmable, enabling customers to purchase a single device that meets all of the system specifications rather than buying several individual devices, each with separate functionality. This provides IDT customers greater design flexibility while decreasing design and inventory costs.

The monitor has a power-on reset function that holds the reset pins in active mode when the user first turns on the power switch, letting the power supplies to achieve maximum levels. This aids in preventing incorrect system starts, protection against potential system errors and unnecessary system restart.

The device also has a watchdog timer that works closely with a control microprocessor used to ensure that it is functioning correctly. Acting as a system failsafe, the device carries an I/O pin on the microprocessor, and if that I/O pin doesn't pulse in a specified period of time, the system monitor assumes it is in an endless loop and resets the system.

At the same time, the equipment has a power supply monitor that continually checks the voltage levels of the system to see if any of the power supplies go below a specified minimum voltage, which could keep the logic or microprocessor from functioning correctly. If power supply levels achieve the minimum voltage specification, the system monitor resets the system and keeps it reset until the power levels reach a safe condition, helping increase system reliability and preventing system parts from failing.

It is available in commercial and industrial temperature ranges, and in a 20-pin QFN or a 20-pin TSSOP package.

- Ismini Scouras

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