Specifications:

Core Processor: PIC
Core Size: 8-bit
Speed: 4 MHz
Connectivity: UART/USART
Peripherals: Brown-out Detect/Reset, POR (Power-On Reset), PWM (Pulse Width Modulation), WDT (Watchdog Timer)
Number of I/O: 16
Program Memory Size: 3.5KB (2K x 14)
Program Memory Type: FLASH
EEPROM Size: 128 x 8
RAM Size: 224 x 8
Voltage - Supply (Vcc/Vdd): 3V ~ 5.5V
Oscillator Type: Internal
Operating Temperature: 0°C ~ 70°C (TA)
Mounting Type: Surface Mount
Package/Case: 18-SOIC (0.295", 7.50mm Width)
Supplier Device Package: 18-SOIC
Base Product Number: PIC16F628