x40420-x40421-4kbit-eeprom.pdf

Dual Voltage Monitor with Integrated CPU Supervisor and System Battery Switch

The X40420, X40421 is a dual voltage monitor with integrated CPU supervisor and system battery switch. It features:

  • Dual voltage detection and reset assertion
  • Three standard reset threshold settings (4.6V/2.9V, 4.6V/2.6V, 2.9V/1.6V)
  • VTRIP2 programmable down to 0.9V
  • Battery switch backup Vout: SmA to 50mA from Vcc; or 250μA from VBATT
  • Fault detection register
  • Selectable power-on reset timeout (0.05s, 0.2s, 0.45s, 0.8s)
  • Selectable watchdog timer interval (25ms, 200ms, 1.445s, off)
  • Debounced manual reset input
  • Low power CMOS, 25μA typical standby current; watchdog on, 6μA typical standby current; watchdog off
  • 4Kbits of EEPROM, 16-byte page write mode, self-timed write cycle, 5ms write cycle time (typical)
  • Built-in inadvertent write protection, power-up/power-down protection circuitry
  • Block lock protect 0 or 1/2 of EEPROM
  • 40kHz 2-wire interface
  • 2.7V to 5.5V power supply operation
  • Available packages: 14 Ld SOIC, TSSOP (Pb-free plus anneal available, RoHS compliant)

Applications

Communications equipment, routers, hubs, switches, disk arrays, industrial systems, process control, intelligent instrumentation, computer systems, desktop computers, network servers

Manual:

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Pricing & Distributors: https://www.datasheets360.com/part/detail/x40421s14iz-bt1/2033484178218586668/

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