Microchip Technology

AT89C51RC-24PI  

Microcontrollers

The AT89C51RC-24PI is a low-power, high-performance CMOS 8-bit microcontroller unit (MCU) manufactured by Microchip Technology. This MCU belongs to the AT89C51 family, which is widely used in various embedded systems and applications due to its versatility, low power consumption, and cost-effectiveness.

Description:

The AT89C51RC-24PI is based on the Harvard architecture, featuring separate memory spaces for program and data. It has an 8-bit data bus and a 16-bit address bus, allowing it to access up to 64KB of external program memory and 64KB of external data memory. The MCU operates with a single 24-pin package and a single 5V power supply.

Features:

1. 8051 CPU core: The AT89C51RC-24PI is built around the popular 8051 CPU core, which provides high computational capabilities and efficient code execution.
2. On-chip memory: The MCU includes 4KB of on-chip ROM (program memory) and 128 bytes of on-chip RAM (data memory).
3. I/O ports: It features 32 I/O pins, which are organized into four 8-bit I/O ports (P0, P1, P2, and P3), providing flexibility for interfacing with various peripherals.
4. Timers: The AT89C51RC-24PI has three 16-bit timer/counters (Timer 0, Timer 1, and Timer 2) that can be used for time measurement, event counting, and pulse generation.
5. Serial communication: It includes two serial communication interfaces, a UART (Universal Asynchronous Receiver/Transmitter) for full-duplex communication and an SPI (Serial Peripheral Interface) for high-speed synchronous serial data communication.
6. Interrupts: The MCU has five software-programmable interrupt sources, allowing for efficient handling of external and internal events.
7. Low-power modes: The AT89C51RC-24PI offers different low-power modes, such as idle mode and power-down mode, to conserve energy during periods of inactivity.
8. Watchdog timer: A watchdog timer is included for system reliability, providing a means to reset the MCU in case of a software failure.

Applications:

The AT89C51RC-24PI is suitable for a wide range of applications due to its versatility, low power consumption, and cost-effectiveness. Some common applications include:

1. Industrial control systems: The MCU can be used in various control systems, such as motor control, temperature monitoring, and process automation.
2. Consumer electronics: It can be employed in appliances like washing machines, air conditioners, and refrigerators for control and monitoring purposes.
3. Telecommunication systems: The AT89C51RC-24PI can be used in modems, fax machines, and other telecommunication devices for data processing and control.
4. Medical equipment: The MCU can be utilized in medical devices for monitoring and controlling various parameters, such as heart rate, blood pressure, and temperature.
5. Automotive systems: It can be used in automotive applications for engine control, anti-lock braking systems (ABS), and airbag deployment.
6. Embedded systems: The AT89C51RC-24PI is ideal for embedded systems in various domains, such as robotics, IoT devices, and home automation.

In summary, the AT89C51RC-24PI is a reliable and cost-effective microcontroller with a wide range of features that make it suitable for various applications in the fields of industrial control, consumer electronics, telecommunication, medical equipment, automotive systems, and embedded systems.

AT89C51RC-24PI Documents

Download datasheets and manufacturer documentation for AT89C51RC-24PI

Datasheets :

AT89C51RC Rev.02      

PCN Packaging :

Transfer to Microchip/Label/Pkg 5/Sep/2016       MBB/Label Chgs 16/Nov/2018      

Design Resources :

AT89C51RC Development Tool Selector      

HTML Datasheet :

AT89C51RC Rev.02      

Environmental Information :

Microchip CA Prop65       Microchip RoHS       Microchip REACH