Specifications:

Core Processor: AVR
Core Size: 8-Bit
Speed: 16MHz
Connectivity: I²C, SPI, UART/USART
Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
Number of I/O: 32
Program Memory Size: 16KB (8K x 16)
Program Memory Type: FLASH
EEPROM Size: 512 x 8
RAM Size: 1K x 8
Voltage - Supply (Vcc/Vdd): 2.7V ~ 5.5V
Data Converters: A/D 8x10b
Oscillator Type: Internal
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: ATMEGA16