The PIC16C621A-04/P is a microcontroller manufactured by Microchip Technology. It is part of the PIC16 Series of 8-bit microcontrollers, and is based on the enhanced RISC architecture of the PIC16 architecture.
The PIC16C621A-04/P has in-system reprogrammable Flash memory, 135 bytes of RAM, 768 bytes of EEPROM, 4 channels of 8-bit analog-to-digital conversion, 8-level hardware stack, 2 16-bit timers, Brown-out Reset and Power On Reset, and various interrupts and peripherals such as capture/compare or PWM.
The PIC16C621A-04/P is also supported by a number of development tools, such as the MPLAB Integrated Development Environment and the MPLAB IDE. It has a maximum operating frequency of 20 MHz and an operating temperature range from -40 ?C to +85 ?C. The device is available in 8-pin PDIP, SOIC and SSOP packages.