Specifications:

Core Processor: PIC
Core Size: 8-bit
Speed: 40 MHz
Connectivity: I²C, SPI, UART/USART
Peripherals: Brown-out Detect/Reset, LVD (Low Voltage Detect), POR (Power-On Reset), PWM (Pulse Width Modulation), WDT (Watchdog Timer)
Number of I/O: 34
Program Memory Size: 32KB (16K x 16)
Program Memory Type: FLASH
EEPROM Size: 256 x 8
RAM Size: 1.5K x 8
Voltage - Supply (Vcc/Vdd): 4.2V ~ 5.5V
Data Converters: A/D (Analog-to-Digital) 8x10b
Oscillator Type: External
Operating Temperature: -40°C ~ 85°C (TA)
Mounting Type: Through Hole
Package/Case: 40-DIP (0.600", 15.24mm)
Supplier Device Package: 40-PDIP
Base Product Number: PIC18F452