The Atmel AT89S52 Microcontroller or commonly known as AT89S52 is a low-power, high-performance CMOS 8-bit microcontroller with 8K bytes of in-system programmable Flash memory. The device is manufactured using Atmel’s high-density nonvolatile memory technology and is compatible with the industry-standard 80C51 instruction set and pinout. The on-chip Flash allows the program memory to be reprogrammed in-system or by a conventional nonvolatile memory programmer. By combining a versatile 8-bit CPU with in-system programmable Flash on a monolithic chip, the Atmel AT89S52 is a powerful microcontroller which provides a highly-flexible and cost-effective solution to many embedded control applications.

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.

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