A 4-MHz internal clock oscillator, on-chip precision voltage comparators, a high-speed USART and a Capture/Compare/PWM module are all features of the PIC16F627 and PIC16F628 8-bit microcontrollers. The former carries 1024 x 14 bits of flash memory,while the latter offers PIC16F628 with 2048 x 14 bits of flash. Both feature 224 bytes of data RAM, 128 bytes of EEPROM data memory, an operating voltage of 2V to 5.5V, 20 MHz maximum operating frequency, brown-out reset, fast single-cycle instruction of 1 µs at 4 MHz, watchdog timer, three timers, and 16 I/O pins. They provide a migration path from firm's PIC16C620 and PIC16C620 µCs. The on-chip, high-precision voltage comparators can be individually configured to provide eight modes of operation ranging from four analog inputs to the feedback of a comparator output into the input of the other. Common mode rejection is -35 dB to reduce crosstalk between channels.
Company: MICROCHIP TECHNOLOGY INC.
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