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AT89C51-24PI

Name: AT89C51-24PI
Rating: 4.7 (12 reviews)

IC MCU 8BIT 4KB FLASH 40DIP

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製造商。部分 #AT89C51-24PI
包 40-DIP
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規格

Package	Tube
Series	89C
ProductStatus	Obsolete
CoreProcessor	80C51
CoreSize	8-Bit
Speed	24MHz
Connectivity	UART/USART
NumberofI/O	32
ProgramMemorySize	4KB (4K x 8)
ProgramMemoryType	FLASH
RAMSize	128 x 8
Voltage-Supply(Vcc/Vdd)	4V ~ 6V
OscillatorType	Internal
OperatingTemperature	-40°C ~ 85°C (TA)
MountingType	Through Hole
Package/Case	40-DIP (0.600, 15.24mm)

概述

Description

The AT89C51-24PI is an 8-bit microcontroller from the 8051 family, manufactured by Atmel (now part of Microchip Technology). It features a 24 MHz clock speed, which allows for enhanced performance compared to earlier 8051 models. The microcontroller includes 4 KB of Flash memory for program storage, 128 bytes of RAM, and supports external memory interfacing.
Key features include 32 I/O pins, two 16-bit timers/counters, a full-duplex UART for serial communication, and a 5-volt operating voltage. It also incorporates a built-in oscillator and a programmable watchdog timer to enhance reliability. The AT89C51-24PI is particularly suited for embedded systems, automation, and control applications.
The microcontroller is widely used in educational projects, prototyping, and various consumer electronics due to its simplicity, robust architecture, and extensive availability of development tools. Its compatibility with a vast range of 8051 software makes it a popular choice among hobbyists and professionals alike.

Features

The AT89C51-24PI is an 8-bit microcontroller from Atmel, part of the MCS-51 family. Key features include:
1. Memory: 4 KB of Flash memory for program storage, 128 bytes of RAM, and 32 I/O pins.
2. Clock Speed: Operates at a maximum frequency of 24 MHz.
3. Instruction Set: Compatible with the MCS-51 instruction set, allowing for a wide range of programming options.
4. Timers: Two 16-bit timers/counters for timing operations and event counting.
5. Interrupts: Five interrupt sources with two external interrupts for enhanced control.
6. Serial Communication: Includes a full-duplex UART for serial communication.
7. Operating Voltage: Typically operates at 5V, with a range of 4.0V to 5.5V.
8. Temperature Range: Suitable for use in industrial applications, operating from -40°C to +85°C.
9. Integrated Oscillator: On-chip oscillator and clock circuitry.
These features make the AT89C51-24PI suitable for various embedded applications, including automotive, industrial, and consumer electronics.

Package

The AT89C51-24PI is packaged in a 40-pin DIP (Dual In-Line Package). This type of package has two parallel rows of pins, allowing for easy insertion into a breadboard or PCB.

Pinout

The AT89C51-24PI is an 8-bit microcontroller from the Atmel 8051 family and features a total of 40 pins.
### Pin Functions:
1. Power Supply:
- Vcc (Pin 40): Power supply (+5V).
- GND (Pin 20): Ground.
2. I/O Ports:
- P0 (Pins 32-39): General-purpose I/O port and can be used as an external data bus.
- P1 (Pins 1-8): General-purpose I/O port.
- P2 (Pins 21-28): General-purpose I/O port and can be used as a high-order address byte for external memory.
- P3 (Pins 10-17): General-purpose I/O port with additional functions, including interrupts and serial communication.
3. Control Signals:
- ALE (Pin 29): Address Latch Enable.
- PSEN (Pin 31): Program Store Enable for external program memory.
- EA (Pin 30): External Access Enable.
4. Oscillator:
- XTAL1 (Pin 19) and XTAL2 (Pin 18): Oscillator connections.
5. Reset:
- RST (Pin 9): Reset input.
This configuration makes the AT89C51-24PI suitable for a variety of embedded applications.

Manufacturer

The AT89C51-24PI is manufactured by Atmel Corporation, which is now part of Microchip Technology Inc. Atmel was known for producing a range of microcontrollers and integrated circuits, particularly in the field of embedded systems. The AT89C51 is part of the popular 8051 microcontroller family, widely used in various applications due to its versatility and ease of use.
Microchip Technology Inc. is a leading provider of microcontroller, analog, and memory products, operating in the semiconductor industry. The company focuses on developing embedded control solutions for a range of applications, including automotive, consumer, industrial, and communications. Its products are widely used by engineers and designers for applications that require reliable and efficient processing capabilities.

Application

The AT89C51-24PI microcontroller is widely used in embedded systems for applications such as industrial automation, automotive controls, consumer electronics, medical devices, and robotics. It supports various functions including data acquisition, control systems, and communication interfaces. Its versatility and ease of programming make it suitable for prototyping and educational purposes as well.

Equivalent

Equivalent products to the AT89C51-24PI include the AT89C51, AT89C52, and P89V51RD2. Other alternatives are NXP's 89C51RD2 and Silicon Labs' C8051F020. Always consider specific features and pin configurations when selecting alternatives.