Description

The AS1916 - AS1918 microprocessor supervisory circuits were designed to generate a reset when the monitored supply voltage falls below a factory-trimmed threshold. The reset remains asserted for a minimum timeout period after the supply voltage stabilizes. Guaranteed to be in the correct state for VCC higher than +1.0V, these devices are ideal for portable and battery powered systems with strict monitoring requirements.
The devices feature factory-trimmed thresholds to monitor a supply voltage between 1.8 and 3.6V.
The devices are available with the reset output types:

• AS1916 Active-Low Push/Pull
• AS1917 Active-High Push/Pull
• AS1918 Active-Low Open-Drain

The AS1916 - AS1918 include a manual-reset input for systems that never fully power down the microprocessor.
Additionally, these devices feature a watchdog timer to help ensure that the processor is operating within proper code boundaries.

The AS1916 - AS1918 are available in a 5-pin SOT23 package.