BUY DS1040Z-A15 https://www.utsource.net/itm/p/1103285.html
Pulse Generator
Description: The DS1040Z-A15 is a low-power, low-voltage, 8-pin CMOS voltage detector with a fixed threshold of 1.5V. Features: Low-power CMOS technology Low-voltage operation (1.5V) Fixed threshold voltage of 1.5V Low supply current (2μA typ) Low output current (2mA max) Low output voltage (0.3V max) Low temperature coefficient (±50ppm/°C typ) Open-drain output Applications: Battery-powered systems Battery-backed memory systems Power-on reset circuits Power-failure detection circuits Low-voltage monitoring circuits (For reference only)