68 series is a built-in  Flash memory and includes high-precision analog to digital converter  (ADC, Analog to Digital Converter) of the general-purpose I / O (GPIO,  General Purpose I / O) microcontrollers, this highly accurate analog to  digital conversion Suitable for voltage detection, temperature detection, or other sensor applications. In  addition, there are wake-up, interrupt, timers, counters, and PWM  functions, and built-in 8K or 16KB analog EEPROM up to 100K erase Flash memory. In  addition, the excellent performance of the analog circuit can provide  high precision internal high-frequency oscillator frequency and low  voltage detection for customers to use. Customers  can also provide customized I / O for different customer needs, such as  external crystal input, infrared drive, up / down resistance, high  current output. The product operates over a  temperature range of -40 ° C to 85 ° C and offers different package  sizes such as SOP, DIP, SSOP, LQFP and QFN depending on pin count. Applicable to home appliances, consumer electronics, power management, instrumentation, toys and other products.