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/