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AT89C51-24PC

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

IC MCU 8BIT 4KB FLASH 40DIP

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Mfr。パート #AT89C51-24PC
パッケージ PDIP-40
データシート
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仕様

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	0°C ~ 70°C (TA)
MountingType	Through Hole
Package/Case	40-DIP (0.600, 15.24mm)

概要

Description

The AT89C51-24PC is a microcontroller from Atmel’s 8051 family, featuring an 8-bit architecture. It operates at a maximum clock frequency of 24 MHz and is equipped with 4 KB of flash memory for program storage, which is programmable and erasable. The device includes 128 bytes of RAM and supports a variety of input/output configurations, including 32 I/O pins organized in four parallel ports.
Key features include two 16-bit timers/counters, a full duplex UART, and an integrated interrupt system with five sources. The AT89C51-24PC also supports external memory interfacing, allowing for expansion beyond its internal resources. Its low power consumption makes it suitable for battery-operated devices.
Programming is often conducted in assembly or C language, with the ability to easily upload code through a serial connection. Due to its robust features and versatility, the AT89C51-24PC is widely used in embedded systems, automation, and control applications.

Features

The AT89C51-24PC is an 8-bit microcontroller from Atmel's 8051 family. Key features include:
1. CPU: 8-bit microcontroller core with a 12-clock-cycle instruction execution.
2. Flash Memory: 4 KB of in-system programmable Flash memory for code storage.
3. RAM: 128 bytes of internal RAM for data storage.
4. I/O Ports: 32 I/O lines organized into four 8-bit ports (P0, P1, P2, P3).
5. Timers/Counters: Two 16-bit timers/counters for various timing applications.
6. Serial Communication: Full-duplex UART for asynchronous serial data communication.
7. Interrupts: Five interrupt sources with two external interrupts.
8. Operating Frequency: Supports a maximum clock frequency of 24 MHz.
9. Power Saving Modes: Idle and power-down modes for energy efficiency.
This microcontroller is widely used in embedded systems due to its flexibility, ease of programming, and compatibility with the extensive 8051 architecture ecosystem.

Package

The AT89C51-24PC is packaged in a 40-pin dual in-line package (DIP). This type of package is designed for through-hole mounting, making it suitable for prototyping and various electronic applications.

Pinout

The AT89C51-24PC is a member of the 8051 microcontroller family, featuring a 40-pin dual in-line package (DIP).
Pin Count: 40 pins.
Pin Functions:
- Port 0 (P0.0 to P0.7): Open-drain I/O port used for external memory interfacing.
- Port 1 (P1.0 to P1.7): Standard I/O port, can be used for general-purpose digital input/output.
- Port 2 (P2.0 to P2.7): I/O port, primarily used for interfacing with external memory.
- Port 3 (P3.0 to P3.7): I/O port with special functions like RXD, TXD (serial communication), and external interrupts (INT0, INT1).
- Reset: Pin for resetting the microcontroller.
- VCC: Power supply (+5V).
- GND: Ground connection.
- ALE: Address Latch Enable for multiplexed address/data bus.
- EA: External Access pin to enable external memory.
- XTAL1 and XTAL2: Oscillator connections for clock generation.
The AT89C51-24PC is widely used in embedded systems for various applications.

Manufacturer

The AT89C51-24PC is manufactured by Microchip Technology Inc. Microchip is an American company that specializes in designing and manufacturing microcontrollers, analog semiconductors, and memory products. Founded in 1989 and headquartered in Chandler, Arizona, Microchip serves a wide range of industries, including automotive, industrial, consumer, and communication sectors. The company is known for its focus on embedded systems and provides a variety of development tools, software, and support for engineers and designers working with its products.

Application

The AT89C51-24PC microcontroller is commonly used in various applications, including embedded systems, automation and control systems, consumer electronics, home appliances, automotive systems, and industrial machinery. Its versatile I/O capabilities and programmability make it suitable for tasks such as data acquisition, sensor interfacing, motor control, and communication protocols in both simple and complex projects.

Equivalent

Equivalent products to the AT89C51-24PC microcontroller include the AT89C52, AT89S52, and the P89V51RD2. These are all compatible 8051-based microcontrollers with similar features, but may vary in memory size, speed, or additional functionalities. Always verify specific requirements and pin compatibility for your application.