View ln61fc ln61fn datasheet:

 LN61F Voltage Detectors With Delay Circuit Built-In 100ppm/℃(TYP.) ■ General Description  Built-In Delay Circuit The LN61F is a micro-power voltage detector supervising the power supply voltage level for microprocessors or The option items include:50ms,100ms,200ms and digital systems, which is extremely accurate with minimal 400ms temperature drift.  Output Configuration: N-channel open drain or CMOS It provides internally fixed threshold levels with 0.1V per ■ Applications step ranging from 1.5V to 5V, which covers most digital applications. It features low supply current.Both CMOS and  Microprocessor reset circuitry N-channel open drain output configurations are  Memory battery back-up circuits available.Since the delay circuit is built-i