BUY PCF2111P https://www.utsource.net/itm/p/249651.html
LCD drivers
Description: Real Time Clock Features: - Low power CMOS technology - Operating voltage range: 2.0V to 5.5V - Operating temperature range: -40°C to +85°C - Low power consumption - 32.768 kHz crystal oscillator - Programmable clock output - Programmable alarm - Programmable timer - Programmable frequency output - Programmable square wave output - Programmable interrupt - Programmable power-on reset Applications: - Automotive - Industrial - Consumer - Medical - Networking - Telecommunications (For reference only)