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X40030

Intersil Corporation
Part Number X40030
Manufacturer Intersil Corporation
Description (X40030 - X40035) Triple Voltage Monitor
Published May 28, 2007
Detailed Description ® X40030, X40031, X40034, X40035 Data Sheet May 25, 2006 FN8114.1 PRELIMINARY Triple Voltage Monitor with Integrated ...
Datasheet PDF File X40030 PDF File

X40030
X40030

Overview
® X40030, X40031, X40034, X40035 Data Sheet May 25, 2006 FN8114.
1 PRELIMINARY Triple Voltage Monitor with Integrated CPU Supervisor FEATURES • Triple voltage detection and reset assertion —Standard reset threshold settings see selection table on page 5.
—Adjust low voltage reset threshold voltages using special programming sequence —Reset signal valid to VCC = 1V —Monitor three seperate voltages • Fault detection register • Selectable power on reset timeout (0.
05s, 0.
2s, 0.
4s, 0.
8s) • Selectable watchdog timer interval (25ms, 200ms, 1.
4s or off) • Debounced manual reset input • Low power CMOS —25µA typical standby current, watchdog on —6µA typical standby current, watchdog off • 400kHz 2-wire interface • 2.
7V to 5.
5V power supply operation • Available in 14 Ld SOIC, TSSOP packages • Monitor voltages: 5V to 0.
9V www.
DataSheet4U.
com • Independent core voltage monitor • Pb-free plus anneal available (RoHS compliant) APPLICATIONS • Communication equipment —Routers, hubs, switches —Disk arrays, network storage BLOCK DIAGRAM V3MON • Industrial systems —Process control —Intelligent instrumentation • Computer systems —Computers —Network servers DESCRIPTION The X40030, X40031, X40034, X40035 combine power-on reset control, watchdog timer, supply voltage supervision, second and third voltage supervision, and manual reset, in one package.
This combination lowers system cost, reduces board space requirements, and increases reliability.
Applying voltage to VCC activates the power on reset circuit which holds RESET/RESET active for a period of time.
This allows the power supply and system oscillator to stabilize before the processor can execute code.
Low VCC detection circuitry protects the user’s system from low voltage conditions, resetting the system when VCC falls below the minimum VTRIP1 point.
RESET/RESET is active until VCC returns to proper operating level and stabilizes.
A second and third voltage monitor circuit tracks the unregulated supply to provide a power fail ...


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