®
X40030, X40031, X40034, X40035
Data Sheet May 25, 2006 FN8114.1
PRELIMINARY
Triple Voltage Monitor with Integrated ...
®
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 r...