New Features • Monitor Voltages: 5V to 0.9V • Independent Core Voltage Monitor
Preliminary Datasheet
X40010/X40011/X40...
New Features Monitor
Voltages: 5V to 0.9V Independent Core
Voltage Monitor
Preliminary Datasheet
X40010/X40011/X40014/X40015
Dual
Voltage Monitor with Integrated CPU Supervisor
FEATURES Dual
voltage detection and reset assertion —Standard reset threshold settings See Selection table on page 2. —Adjust low
voltage reset threshold
voltages using special programming sequence —Reset signal valid to VCC = 1V —Monitor three
voltages or detect power fail Independent Core
Voltage Monitor (V2MON) Fault detection register Selectable power on reset timeout (0.05s, 0.2s, 0.4s, 0.8s) Selectable watchdog timer interval (25ms, 200ms, 1.4s, off) 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 packages —8-lead SOIC, TSSOP APPLICATIONS Communication Equipment —Routers, Hubs, Switches —Disk Arrays, Network Storage Industrial Systems —Process Control —Intelligent Instrumentation Computer Systems —Computers —Network Servers DESCRIPTION The X40010/11/14/15 combines power-on reset control, watchdog timer, supply
voltage supervision, and secondary
voltage supervision, 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 stab...