BUY DS1005K-150 https://www.utsource.net/itm/p/9772283.html

Description: The DS1005K-150 is a Dallas Semiconductor 8-bit microcontroller with a 4-bit microprocessor. It is a low-power, low-cost, single-chip solution for a wide range of applications. Features: 8-bit microcontroller with 4-bit microprocessor Low-power, low-cost solution On-chip oscillator On-chip RAM On-chip ROM On-chip I/O ports On-chip ADC On-chip PWM On-chip SPI On-chip I2C On-chip UART On-chip watchdog timer Applications: Automotive Industrial Home appliances Security systems Robotics Medical devices Consumer electronics (For reference only)