ADM8323

ADM8323 is a supervisory circuit with windowed watchdog and manual reset. It monitors power supply voltage levels and code execution integrity in microprocessor-based systems. An on-chip watchdog timer checks for activity within a preset timeout window. A reset signal can also be asserted by an external push-button switch through a manual reset input. The active-low RESET output is push-pull. A watchdog failure results in a low output on the active-low RESET pin. A failure can be triggered either by a fast watchdog error (watchdog pulses too close together) or by a slow watchdog error (no watchdog pulse within the timeout period). This effectively gives a window to observe the watchdog pulse. Applications include microprocessor systems, computers, controllers, intelligent instruments and portable equipment.

• Windowed watchdog, 8 timeout options
• Manual reset input
• Low power consumption
• Specified over wide temperature range (-40°C to +125°C)
• VCC operating voltage range from 0.9V to 5.5V
• 10µA (VCC = 5.5V, WDI = 0V) supply current
• 5-lead SOT-23 package

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party