• Part: X40021
  • Manufacturer: Intersil
  • Size: 382.12 KB
Download X40021 Datasheet PDF
X40021 datasheet preview
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X40021 Key Features

  • Battery switch backup
  • VOUT: 5mA to 50mA from VCC; 250µA from VBATT
  • 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)
  • Debounced manual reset input
  • Low power CMOS -25µA typical standby current, watchdog on -6µA typical standby current, watchdog off -1µA battery curren
  • 400kHz 2-wire interface
  • 2.7V to 5.5V power supply operation
  • Available packages -14-lead SOIC, TSSOP

Related Intersil Datasheets

Part Number Description
X40020 Dual Voltage Monitor
X4003 CPU Supervisor
X40030 Triple Voltage Monitor
X40031 Triple Voltage Monitor
X40034 Triple Voltage Monitor

X40021 Description

The X40020 bines power-on reset control, watchdog timer, supply voltage supervision, and secondary supervision, and manual reset, in one package. This bination 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.