Atmel 8051 AT89C52-24PC IC DIP-40 Leads Microcontroller IC Chip

The AT89C52 8-bit Microcontroller is a powerful and versatile microcontroller from Atmel’s 8051 family, widely used in embedded systems, automation projects, and educational applications. It comes equipped with 8KB of In-System Programmable (ISP) Flash Memory and 256 bytes of internal RAM, making it suitable for a wide range of control and data processing tasks. Thanks to its robust design and ease of programming, the AT89C52 remains a popular choice for developers and students working on microcontroller-based projects.

With an endurance of up to 10,000 write/erase cycles, the AT89C52 ensures reliable performance over time. Its operating voltage range of 4.0V to 5.5V allows compatibility with various power sources, and it supports fully static operation from 0 Hz to 33 MHz. This microcontroller also includes multiple I/O lines, timers, serial communication support, and low-power modes, making it an excellent choice for both industrial and low-energy applications.

Ports:

• Port P0 – Multiplexed address/data bus and general-purpose I/O
• Port P1 – General-purpose I/O with additional timer/counter functions
• Port P2 – High-order address bus or general-purpose I/O
• Port P3 – I/O with built-in serial communication, interrupts, and control functions

Key Features:

• Fully compatible with MCS®-51 instruction set
• 8KB ISP Flash Memory with 10,000 write/erase cycle endurance
• 4.0V to 5.5V operating voltage range
• Fully static operation: 0 Hz to 33 MHz clock frequency
• Three-level program memory lock for security
• 256 x 8-bit internal RAM
• 32 programmable I/O lines
• Three 16-bit timer/counters
• Eight interrupt sources
• Full duplex UART serial communication
• Low-power idle and power-down modes
• Watchdog timer for system reliability
• Dual data pointer for efficient data handling
• Power-off flag for status monitoring
• Fast programming time with flexible ISP modes (byte and page)
• Environment-friendly green (Pb/Halide-free) packaging option

AT89C52 Pin Configuration:

• P1.0 (T2) – Timer/Counter or GPIO pin 0 of Port 1
• P1.1 (T2.EX) – Timer/Counter/External Counter or GPIO pin 1 of Port 1
• P1.2 to P1.7 – Multipurpose GPIO pins
• P3.0 (RXD) – Serial input
• P3.1 (TXD) – Serial output
• P3.2 (INT0) – External interrupt 0
• P3.3 (INT1) – External interrupt 1
• P3.4 (T0) – Timer 0 input
• P3.5 (T1) – Timer 1 input
• P3.6 (WR) – External data memory write strobe
• P3.7 (RD) – External data memory read strobe

Applications:

• Embedded control systems
• Home automation projects
• Robotics and sensor interfacing
• Industrial control panels
• Educational microcontroller projects
• Data acquisition and logging systems

Other Popular Atmel 8-bit Microcontrollers:

• AT89C51 – Classic 8051 series microcontroller
• ATmega328P – Popular AVR microcontroller used in Arduino boards