The AT89S2051 is a low-voltage, high-performance CMOS 8-bit microcontroller with 2K/4K bytes of In System Programmable (ISP) Flash program memory. The device is manufactured using Atmel’s high density nonvolatile memory technology and is compatible with the industry-standard MCS-51 instruction set.

Features of AT89S2051 Micro-controller:

• Compatible with MCS®51 Products.
• 2 K/4 K Bytes of In-System Programmable (ISP) Flash Program Memory.
• Endurance: 10,000 Write/Erase Cycles.
• 2.7 V to 5.5 V Operating Range.
• Fully Static Operation: 0 Hz to 24 MHz (x1 and x2 Modes).
• 256 x 8-bit Internal RAM.
• 15 Programmable I/O Lines.
• Two 16-bit Timer/Counters.
• Six Interrupt Sources.
• Programmable Serial UART Channel.
• On-chip Analog Comparative with Selectable Interrupt.
• 8-bit PWM (Pulse-width Modulation).

Applications of AT89S2051 Micro-controller:

• These are used in RF communication purposes like as:
• It is used in all types of electrical/electronic projects.
• Robotics projects.

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