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AT89C55WD-24JU

Name: AT89C55WD-24JU
Rating: 4.7 (12 reviews)

IC MCU 8BIT 20KB FLASH 44PLCC

제조업체
Mfr.부분 #AT89C55WD-24JU
패키지 PLCC-44
데이터시트
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사양

Package	Tube
Series	89C
ProductStatus	Active
CoreProcessor	8051
CoreSize	8-Bit
Speed	24MHz
Connectivity	UART/USART
Peripherals	WDT
NumberofI/O	32
ProgramMemorySize	20KB (20K x 8)
ProgramMemoryType	FLASH
RAMSize	256 x 8
Voltage-Supply(Vcc/Vdd)	4.5V ~ 5.5V
OscillatorType	Internal
OperatingTemperature	-40°C ~ 85°C (TA)
MountingType	Surface Mount
Package/Case	44-LCC (J-Lead)

개요

Description

The AT89C55WD-24JU is a versatile 8-bit microcontroller from Atmel (now part of Microchip Technology) featuring a 40-pin dual in-line package (DIP) design. It is based on the 8051 architecture and offers 8 KB of Flash memory, which can be electrically erasable, allowing for easy program updates. The microcontroller includes 256 bytes of RAM, 32 input/output (I/O) lines, two 16-bit timer/counters, and a full-duplex UART for serial communication.
Key features include:
- Operating Voltage: 4.0V to 5.5V
- Clock Speed: Up to 24 MHz
- Interrupts: 6 external interrupt sources
- Analog Features: On-chip oscillator and clock circuitry
- Program Memory Lock: To protect user programs from unauthorized access
The AT89C55WD is ideal for applications in embedded systems, industrial control, and consumer electronics due to its flexibility, reliability, and ease of programming. Its compatibility with the 8051 family makes it a popular choice among developers.

Features

The AT89C55WD-24JU is an 8-bit microcontroller from Atmel's 8051 family, featuring the following key characteristics:
1. Architecture: 8-bit architecture with a 16-bit timer/counter.
2. Memory: 32KB of Flash memory for program storage, 2KB of RAM, and 256 bytes of EEPROM.
3. I/O Ports: 32 I/O lines divided into four 8-bit ports, allowing flexible interfacing.
4. Clock Speed: Operates at a maximum clock frequency of 24 MHz.
5. Timers: Two 16-bit timers/counters for various timing applications.
6. Interrupts: Supports up to 6 external interrupts for responsive control.
7. Serial Communication: Full-duplex UART for serial data transmission.
8. Low Power Modes: Includes power-saving modes to reduce energy consumption.
9. Programming: Can be programmed using standard ISP (In-System Programming) methods.
10. Package: Available in a 40-pin DIP and PLCC packages.
These features make the AT89C55WD-24JU suitable for a wide range of embedded applications, including automation, control systems, and consumer electronics.

Package

The AT89C55WD-24JU is packaged in a 44-pin PLCC (Plastic Leaded Chip Carrier) format.

Pinout

The AT89C55WD-24JU is an 8-bit microcontroller from Atmel (now part of Microchip Technology) that features a total of 40 pins.
Pin Functions:
1. Power Supply Pins:
- VCC: Supply voltage
- GND: Ground
2. Input/Output Ports:
- Port 0 (P0.0 - P0.7): Open-drain I/O port
- Port 1 (P1.0 - P1.7): Standard I/O port
- Port 2 (P2.0 - P2.7): Standard I/O port
- Port 3 (P3.0 - P3.7): Standard I/O port, also includes special functions like interrupts and serial communication
3. Control Signals:
- ALE: Address Latch Enable
- PSEN: Program Store Enable
- EA: External Access Enable
4. Timer/Counters:
- Timer 0 and Timer 1: Control pins for timer functionality
5. Reset:
- RST: Reset pin
6. Oscillator:
- XTAL1 and XTAL2: Oscillator pins for clock generation
This microcontroller is suitable for applications that require I/O flexibility and is often used in embedded systems.

Manufacturer

The AT89C55WD-24JU is manufactured by Atmel Corporation, which is now a part of Microchip Technology Inc. Atmel was known for its development of microcontrollers, particularly the AVR and ARM families, as well as various integrated circuits. The company specialized in semiconductor solutions, focusing on embedded systems and applications. Microchip Technology, which acquired Atmel in 2016, is a leading provider of microcontroller, mixed-signal, analog, and Flash-IP solutions. It serves a wide range of industries, including automotive, industrial, consumer, and communications, providing products that enable the design of innovative and cost-effective electronic systems.

Application

The AT89C55WD-24JU is an 8-bit microcontroller commonly used in embedded systems for applications such as industrial automation, home automation, data acquisition systems, communication devices, and control systems. Its versatile architecture supports various I/O operations, making it suitable for robotics, automotive systems, and consumer electronics. Additionally, it can be utilized in educational projects and prototyping for developing custom applications.

Equivalent

The AT89C55WD-24JU is an 8-bit microcontroller from Atmel (now part of Microchip Technology). Equivalent products include the AT89C52, AT89C51, and the AT89C54. These chips share similar architecture and programming models, but may have different features such as memory size and I/O capabilities. Always check the specific datasheets for detailed comparisons to ensure compatibility with your application.