DESCRIPTION
   The X40410/11/14/15 combines power-on reset control, watchdog timer, supply voltage supervision, and secondary voltage supervision, and Block Lock™ protect serial EEPROM in one package. This combination lowers system cost, reduces board space requirements, and increases reliability.

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
• 4Kbits of EEPROM
   —16 byte page write mode
   —5ms write cycle time (typical)
• Built-in inadvertent write protection
   —Power-up/power-down protection circuitry
   —Block lock protect none or 1/2 of EEPROM
• 400kHz 2-wire interface
• 2.7V to 5.5V power supply operation
• Available packages
   —8-lead SOIC, TSSOP
• Monitor Voltages: 5V to 0.9V
• Memory Security
• Independent Core Voltage Monitor

APPLICATIONS
• Communication Equipment
   —Routers, Hubs, Switches
   —Disk Arrays, Network Storage
• Industrial Systems
   —Process Control
   —Intelligent Instrumentation
• Computer Systems
   —Computers
   —Network Servers