Microchip Technology, Inc. Microcontrollers PIC16F1939-E/P

The PIC16F1939-E/P is an 8-bit microcontroller from Quarktwin Technology Ltd. featuring a high-performance RISC CPU capable of operating at speeds up to 32 MHz with a 125 ns instruction cycle. It offers 16K x 14 words of Flash program memory and 1024 bytes of RAM. The device supports various addressing modes and includes a 16-level deep hardware stack, making it suitable for complex applications. This microcontroller includes a precision internal oscillator with a selectable frequency range from 32 MHz to 31 kHz, and it operates within a wide voltage range of 1.8V to 5.5V. It features multiple power-saving modes, including a sleep mode, and has built-in reset capabilities such as Power-on Reset (POR) and Brown-out Reset (BOR). The PIC16F1939-E/P provides up to 35 I/O pins, an integrated LCD controller supporting up to 96 segments, and a capacitive sensing module with up to 16 channels. It also includes a 10-bit A/D converter with multiple voltage reference options, several timers, and enhanced capture/compare/PWM modules. Communication interfaces include a Master Synchronous Serial Port (MSSP) for SPI and I¬=C, as well as an enhanced Universal Synchronous Asynchronous Receiver Transmitter (EUSART). This microcontroller is pin-compatible with other devices in the PIC16CXXX and PIC16FXXX series, making it a versatile choice for engineers looking to implement reliable and efficient control solutions in their projects.