8051 Atmel AT89S51 DIP 40 MCU Microcontroller

AT89S51 8-Bit Microcontroller Overview

The Atmel 8051 AT89S51 is a low-power, high-performance CMOS 8-bit microcontroller with 4K bytes of Flash memory. It supports the MCS-51™ instruction set and is ideal for embedded applications, DIY projects, and learning microcontroller programming.

Key Features of AT89S51 Microcontroller

• Compatible with MCS®-51 Products
• 4K Bytes In-System Programmable (ISP) Flash Memory
• Operating Voltage: 4.0V – 5.5V
• Fully Static Operation: 0 Hz to 33 MHz
• 128 x 8-bit Internal RAM
• 32 Programmable I/O Lines
• Two 16-bit Timer/Counters and Six Interrupt Sources
• Full Duplex UART Serial Channel
• Low-power Idle and Power-down Modes
• Watchdog Timer, Dual Data Pointer, and Power-off Flag
• Flexible ISP Programming (Byte and Page Mode)
• Green (Pb/Halide-free) Packaging Option

Specifications of AT89S51 Microcontroller

• Manufacturer Part No: AT89S51-24PU
• Manufacturer: Microchip Technology
• Product Type: 8-bit Microcontroller
• Core: 8051
• Program Memory Size: 4 kB Flash
• Data Bus Width: 8-bit
• Number of I/Os: 32
• Data RAM Size: 128 B
• Maximum Clock Frequency: 24 MHz
• Interface Type: UART
• Number of Timers/Counters: 2
• Operating Temperature Range: -40°C to +85°C
• Mounting Style: Through Hole, DIP-40 Package

Applications of AT89S51 Microcontroller

• Multiple DIY Electronics Projects
• Learning ATmel 8051 Microcontroller Programming
• Projects requiring multiple I/O interfaces and communication
• Replacement for Arduino Module in embedded systems

Package Includes

• 1 x AT89S51-24PU 8-Bit Microcontroller (DIP-40 Package)

Datasheet

Refer to the official AT89S51 microcontroller datasheet for detailed technical specifications and usage guidelines.

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