Features of Atmel AT89S52 Microcontroller:-

• 8K Bytes of In-System Programmable (ISP) Flash Memory.
• Endurance: 10,000 Write/Erase Cycles.
• 4.0V to 5.5V Operating Range.
• Endurance: 1,000 Write/Erase Cycles
• Fully Static Operation : 0 Hz to 33 MHz
• Three-level Program Memory Lock.
• 256 x 8-bit Internal RAM.
• 32 Programmable I/O Lines.
• Three 16-bit Timer/Counters.
• Eight Interrupt Sources.
• Full Duplex UART Serial Channel.
• Interrupt Recovery from Power-down Mode.
• Watchdog Timer.
• Dual Data Pointer.
• Low-power Idle and Power-down Modes.
• Power-off Flag
• Fast Programming Time

Applications of Atmel AT89S52 Microcontroller:-

• Multiple DIY projects.
• Projects requiring more than logical control for devices.
• Microcontroller applications for multiple device interface/Control.
• Replacement for Arduino module.
• Needs a USB AVR programmer.