AT89S8253-24PU

IC MCU 8BIT 12KB FLASH 40DIP
Embedded - Microcontrollers
Packaging      Tube  
Core Processor    8051
Core Size    8-Bit
Speed    24MHz
Connectivity    SPI, UART/USART
Peripherals    POR, WDT
Number of I/O    32
Program Memory Size    12KB (12K x 8)
Program Memory Type    FLASH
EEPROM Size    2K x 8
RAM Size    256 x 8
Voltage - Supply (Vcc/Vdd)    2.7 V ~ 5.5 V
Data Converters    -
Oscillator Type    External
Package / Case    40-DIP (0.600", 15.24mm)

  data sheet