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AT89C2051-24PU

Name: AT89C2051-24PU
Rating: 4.7 (12 reviews)

IC MCU 8BIT 2KB FLASH 20DIP

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製造商。部分 #AT89C2051-24PU
包 PDIP-20
資料表 AT89C2051-24PU DataSheet
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規格

Package	Tube
Series	89C
ProductStatus	Active
CoreProcessor	8051
CoreSize	8-Bit
Speed	24MHz
Connectivity	UART/USART
Peripherals	LED
NumberofI/O	15
ProgramMemorySize	2KB (2K 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	20-DIP (0.300, 7.62mm)

概述

Description

The AT89C2051-24PU is an 8-bit microcontroller from Atmel, based on the 8051 architecture. It features 2 KB of Flash memory, 128 bytes of RAM, and 15 programmable I/O pins, making it suitable for a range of embedded applications. It operates at a maximum clock frequency of 24 MHz, with a supply voltage of 4.0V to 5.5V.
The microcontroller supports various modes of operation, including a built-in oscillator, serial communication via UART, and interrupts, which enhance its flexibility for different projects. The AT89C2051 is particularly valued for its ease of programming and debugging, as it can be reprogrammed through a simple interface.
Applications include simple control systems, automotive electronics, industrial automation, and consumer electronics. Its compact design and capabilities make it a popular choice for hobbyists and professionals alike in the development of embedded systems.

Features

The AT89C2051-24PU is an 8-bit microcontroller from Atmel's 8051 family. Key features include:
1. Memory: 2 KB of Flash memory for program storage, 128 bytes of RAM, and 64 bytes of EEPROM.
2. I/O Ports: 15 I/O pins (P0, P1, P2, P3) for versatile interfacing.
3. Clock Speed: Operates up to 24 MHz.
4. Timers: Two 16-bit timers/counters for time-related operations.
5. Interrupts: Supports five interrupt sources for efficient event handling.
6. Serial Communication: Built-in UART for asynchronous serial communication.
7. Low Power Consumption: Designed for low power usage, making it suitable for battery-operated devices.
8. Programming: In-system programming capability via a standard interface.
9. Operating Voltage: Typically operates at 5V with a wide voltage range for flexibility.
This microcontroller is ideal for embedded applications requiring compact size and robust performance.

Package

The AT89C2051-24PU is available in a 20-pin Dual In-line Package (DIP) format. This package type allows for easy integration into breadboards and other prototyping setups.

Pinout

The AT89C2051-24PU is an 8-bit microcontroller from Atmel's 8051 family, featuring a 20-pin Dual In-line Package (DIP). Here’s a concise pin count and function breakdown:
1. VCC (Pin 1): Supply voltage (+5V).
2. GND (Pin 20): Ground.
3. Port 1 (Pins 2-9): 8-bit I/O port (P1.0 to P1.7).
4. Port 2 (Pins 10-17): 8-bit I/O port (P2.0 to P2.7); also used for external memory addressing.
5. RST (Pin 9): Reset pin; active high.
6. RXD (Pin 10): Serial input pin for UART communication.
7. TXD (Pin 11): Serial output pin for UART communication.
8. ALE (Pin 12): Address latch enable; used when interfacing with external memory.
9. EA (Pin 18): External access pin; when high, allows execution of code from external memory.
10. PSEN (Pin 19): Program store enable; used to access external program memory.
This microcontroller is widely used in embedded systems due to its simplicity and versatility.

Manufacturer

The AT89C2051-24PU is manufactured by Microchip Technology Inc. Microchip is a leading provider of microcontroller, mixed-signal, analog, and Flash-IP solutions. Founded in 1989 and headquartered in Chandler, Arizona, the company specializes in embedded control applications. Microchip's products are widely used in various industries, including automotive, consumer electronics, industrial automation, and communications. The AT89C2051 is part of the 8051 microcontroller family, known for its ease of use and versatility in a range of applications.

Application

The AT89C2051-24PU is an 8-bit microcontroller commonly used in embedded systems for applications such as home automation, industrial control, sensor interfacing, robotics, and simple data acquisition systems. Its low power consumption and small size make it suitable for handheld devices and consumer electronics. Additionally, it can be utilized in educational projects for learning programming and hardware interfacing.

Equivalent

The AT89C2051-24PU is an 8-bit microcontroller from Atmel (now part of Microchip Technology). Equivalent products include the P89V51RD2 from NXP, the 89C52 from Atmel, and the PIC16F84 from Microchip. Other alternatives may include the Microchip 16F628A and the Silicon Labs C8051F series, depending on specific requirements like memory size, I/O pins, and peripherals. Always verify compatibility in your application before substituting.