Specifications:

Core Processor: PIC
Core Size: 8-bit
Speed: 20 MHz
Connectivity: I²C, SPI, UART/USART
Peripherals: Brown-out Detect/Reset, POR (Power-On Reset), PWM (Pulse Width Modulation), WDT (Watchdog Timer)
Number of I/O: 22
Program Memory Size: 7KB (4K x 14)
Program Memory Type: FLASH
EEPROM Size: 128 x 8
RAM Size: 192 x 8
Voltage - Supply (Vcc/Vdd): 4V ~ 5.5V
Data Converters: A/D (Analog-to-Digital) 5x10b
Oscillator Type: External
Operating Temperature: 0°C ~ 70°C (TA)
Mounting Type: Through Hole
Package/Case: 28-DIP (0.300", 7.62mm)
Supplier Device Package: 28-SPDIP
Base Product Number: PIC16F873