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AT89C4051-24PU

Name: AT89C4051-24PU
Rating: 4.7 (12 reviews)

IC MCU 8BIT 4KB FLASH 20DIP

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Mfr。パート #AT89C4051-24PU
パッケージ PDIP-20
データシート AT89C4051-24PU DataSheet
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仕様

Package	Bulk
Series	89C
ProductStatus	Active
CoreProcessor	8051
CoreSize	8-Bit
Speed	24MHz
Connectivity	UART/USART
Peripherals	Brown-out Detect/Reset, LED, POR
NumberofI/O	15
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	20-DIP (0.300, 7.62mm)

概要

Description

The AT89C4051-24PU is an 8-bit microcontroller from the Atmel (now Microchip Technology) 8051 family. It features a 4KB Flash memory for program storage, 128 bytes of RAM, and 32 I/O lines organized into four 8-bit ports. This microcontroller operates at a maximum clock frequency of 24 MHz and can be powered with a voltage range from 2.7V to 6V, making it suitable for various embedded applications.
Key features include a 16-bit timer, UART for serial communication, and a fully integrated oscillator. The AT89C4051-24PU supports both in-system programming and external programming, allowing for flexibility in software development. It is widely used in applications such as home automation, robotics, and industrial control due to its ease of use and compatibility with the extensive 8051 development ecosystem. Its compact size and low power consumption make it a popular choice for embedded systems.

Features

The AT89C4051-24PU is an 8-bit microcontroller from Atmel (now part of Microchip Technology), based on the 8051 architecture. Key features include:
1. Memory: 4 KB of Flash memory for code storage, 128 bytes of RAM, and 16 bytes of bit-addressable RAM.
2. I/O Ports: 32 I/O lines divided into four 8-bit ports (P0, P1, P2, P3).
3. Clock Speed: Operates up to 24 MHz with a 12 MHz external oscillator.
4. Timers: Two 16-bit timers/counters for various timing applications.
5. Serial Communication: Full-duplex UART for asynchronous communication.
6. Interrupts: Five interrupt sources, with two external interrupts.
7. Power Management: Supports idle and power-down modes for energy efficiency.
8. Programming: ISP (In-System Programming) capability for easy updates.
The AT89C4051 is ideal for embedded systems, automation, and control applications due to its versatility and low power consumption.

Package

The AT89C4051-24PU is packaged in a 40-pin DIP (Dual In-line Package) format.

Pinout

The AT89C4051-24PU is an 8-bit microcontroller from Atmel (now part of Microchip Technology) that features a 40-pin Dual In-line Package (DIP).
Pin Count:
- Total Pins: 40
Pin Functions:
- VCC: Power supply (+5V).
- GND: Ground.
- Port 1 (P1.0 to P1.7): 8-bit I/O port.
- Port 2 (P2.0 to P2.7): 8-bit I/O port, also used for external memory addressing.
- Port 3 (P3.0 to P3.7): 8-bit I/O port with special functions (interrupts, timer inputs, serial communication).
- Reset: Resets the microcontroller.
- EA (External Access): Enables access to external memory.
- ALE (Address Latch Enable): Used for demultiplexing the address/data bus.
- PSEN (Program Store Enable): Controls access to external program memory.
- XTAL1/XTAL2: Oscillator pins for the external clock.
The AT89C4051 is commonly used in embedded applications due to its versatility and ease of programming.

Manufacturer

The AT89C4051-24PU is manufactured by Atmel Corporation, which is now part of Microchip Technology Inc. Atmel was known for developing microcontrollers, memory chips, and related electronic components. The company specialized in embedded systems and offered a wide range of products that catered to various applications in consumer electronics, automotive, industrial, and telecommunications sectors. Microchip Technology, which acquired Atmel in 2016, continues to offer and develop the AT89C4051 series among other microcontroller families, focusing on providing solutions for embedded control applications.

Application

The AT89C4051-24PU is commonly used in embedded systems for applications such as home automation, motor control, sensor interfacing, industrial automation, and communication systems. Its 8-bit microcontroller capabilities make it suitable for simple control tasks, real-time processing, and device interfacing in robotics, consumer electronics, and educational projects.

Equivalent

Equivalent products to the AT89C4051-24PU microcontroller include the AT89C51, AT89C55, and the AT89S52. Other compatible microcontrollers from different manufacturers may include the P89V51RD2, C8051F020, and various members of the 8051 family that support similar pin configurations and functionalities. Always check specific datasheets for detailed comparisons.