Specifications:

Core Processor: AVR
Core Size: 8-Bit
Speed: 8MHz
Connectivity: SPI, UART/USART
Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
Number of I/O: 32
Program Memory Size: 8KB (4K x 16)
Program Memory Type: FLASH
EEPROM Size: 512 x 8
RAM Size: 512 x 8
Voltage - Supply (Vcc/Vdd): 4V ~ 6V
Data Converters: None
Oscillator Type: Internal
Operating Temperature: -40°C ~ 85°C
Mounting Type: Surface Mount
Package / Case: 44-TQFP
Supplier Device Package: 44-TQFP (10x10)
Base Product Number: AT90S8515