PIC16F628A Microcontroller

The PIC16F628A is 18-pin Flash-based members of the versatile PIC16F628A family of low-cost, high-performance, CMOS, fullystatic, 8-bit microcontrollers. All PIC® microcontrollers employ an advanced RISC architecture. The PIC16F628A have enhanced core features, an eight-level deep stack, and multiple internal and external interrupt sources. The separate instruction and data buses of the Harvard architecture allow a 14-bit wide instruction word with the separate 8-bit wide data. The two-stage instruction pipeline allows all instructions to execute in a single cycle, except for program branches (which require two cycles). A total of 35 instructions (reduced instruction set) are available, complemented by a large register set. PIC16F628A microcontrollers typically achieve a 2:1 code compression and a 4:1 speed improvement over other 8-bit microcontrollers in their class. PIC16F628A devices have integrated features to reduce external components, thus reducing system cost, enhancing system reliability and reducing power consumption. Features:- • 16 I/O pins with individual direction control • High current sink/source for direct LED drive • Analog comparator module with: - Two analog comparators - Programmable on-chip voltage reference (VREF) module - Selectable internal or external reference - Comparator outputs are externally accessible • Timer0: 8-bit timer/counter with 8-bit programmable prescaler • Timer1: 16-bit timer/counter with external crystal/ clock capability • Timer2: 8-bit timer/counter with 8-bit period register, prescaler and postscaler • Capture, Compare, PWM module: - 16-bit Capture/Compare - 10-bit PWM • Addressable Universal Synchronous/Asynchronous Receiver/Transmitter USART/SCI Specification:- Parameter Value Program Memory Type Flash Program Memory Size (KB) 3.5 CPU Speed (MIPS/DMIPS) 5 SRAM (B) 224 Temperature Range (°C) -40 to 125 Operating Voltage Range (V) 2 to 5.5 Pin Count 18 Timers 2 x 8-bit, 1 x 16-bit Data EEPROM/HEF (bytes) 128 Digital Communication Peripherals 1-UART Capture/Compare/PWM Peripherals 1 Input Capture, 1 CCP Related Document:- PIC16F628A IC Data Sheet