The MICROCHIP TECH. PIC16C65B-20/P is an 8-bit microcontroller designed for a variety of applications. It features an oscillator, timer, and SPI mode, offering flexibility in system design. Users should be aware of potential anomalies related to oscillator startup from sleep mode and timer operation in external clock mode. The datasheet provides workarounds for these issues, ensuring reliable performance in industrial and embedded systems. New packaging options, including 28-pin QFN, have been added to the product line.