사양
| 속성 | 가치 |
| Package / Case | Tube |
| Series | 89C |
| Part Status | Obsolete |
| Core Processor | 8051 |
| Core Size | 8-Bit |
| Speed | 24MHz |
| Connectivity | UART/USART |
| Peripherals | WDT |
| Number of I/O | 32 |
| Program Memory Size | 20KB (20K x 8) |
| Program Memory Type | FLASH |
| RAM Size | 256 x 8 |
| Voltage - Supply (Vcc/Vdd) | 4.5V ~ 5.5V |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Through Hole |
개요
Description
The AT89C55WD-24PI is an 8-bit microcontroller from the 8051 family, manufactured by Atmel (now part of Microchip Technology). It is designed for use in embedded systems, offering a blend of performance, flexibility, and power efficiency. Key features include 20 MHz operation speed, 20 Kbytes of in-system programmable Flash memory, 256 bytes of RAM, and 32 programmable I/O lines, making it versatile for various applications.
The microcontroller supports three 16-bit timer/counters, serial communication through a full-duplex UART, and a programmable watchdog timer. It also offers four 8-bit I/O ports and one 8-bit I/O expansion port, providing ample connectivity options. Its power-saving modes, such as Idle and Power-down, ensure efficient energy use.
The AT89C55WD-24PI operates at a wide voltage range (4.0V to 5.5V) and is built to withstand industrial temperature ranges, making it suitable for robust applications. Its compatibility with the MCS-51 instruction set allows developers to leverage existing code libraries, ensuring a smoother development process.
The microcontroller supports three 16-bit timer/counters, serial communication through a full-duplex UART, and a programmable watchdog timer. It also offers four 8-bit I/O ports and one 8-bit I/O expansion port, providing ample connectivity options. Its power-saving modes, such as Idle and Power-down, ensure efficient energy use.
The AT89C55WD-24PI operates at a wide voltage range (4.0V to 5.5V) and is built to withstand industrial temperature ranges, making it suitable for robust applications. Its compatibility with the MCS-51 instruction set allows developers to leverage existing code libraries, ensuring a smoother development process.
Equivalent
The AT89C55WD-24PI is an 8-bit microcontroller from Microchip Technology (formerly Atmel). Equivalent products include:
1. Microchip AT89C51 series
2. NXP P89V51RD2
3. Silicon Labs C8051F series
4. Infineon XC800 series
These alternatives offer similar features like 8-bit architecture, flash memory, and compatible I/O peripherals, but check datasheets for specific compatibility and feature sets.
1. Microchip AT89C51 series
2. NXP P89V51RD2
3. Silicon Labs C8051F series
4. Infineon XC800 series
These alternatives offer similar features like 8-bit architecture, flash memory, and compatible I/O peripherals, but check datasheets for specific compatibility and feature sets.
Features
The AT89C55WD-24PI is a microcontroller from the 8-bit 8051 family, designed by Atmel (now part of Microchip Technology). Key features include:
1. Memory: It has 20KB of Flash memory for program storage and 256 bytes of RAM for data storage.
2. I/O Ports: Equipped with 32 programmable I/O lines, facilitating peripheral interfacing.
3. Timers: Includes three 16-bit timer/counters for precision timing operations.
4. Serial Communication: Supports full-duplex UART for serial data communication.
5. Interrupts: Provides a robust interrupt system with six interrupts and two external interrupts.
6. Clock Speed: Operates at a maximum frequency of 24 MHz.
7. Power Supply: Requires a standard operating voltage of 4.0V to 5.5V.
8. Watchdog Timer: Features an on-chip watchdog timer for enhanced system reliability.
9. Compatibility: It is pin-compatible with standard MCS-51 products, ensuring ease of integration into existing designs.
These features make the AT89C55WD-24PI suitable for a wide range of embedded applications.
1. Memory: It has 20KB of Flash memory for program storage and 256 bytes of RAM for data storage.
2. I/O Ports: Equipped with 32 programmable I/O lines, facilitating peripheral interfacing.
3. Timers: Includes three 16-bit timer/counters for precision timing operations.
4. Serial Communication: Supports full-duplex UART for serial data communication.
5. Interrupts: Provides a robust interrupt system with six interrupts and two external interrupts.
6. Clock Speed: Operates at a maximum frequency of 24 MHz.
7. Power Supply: Requires a standard operating voltage of 4.0V to 5.5V.
8. Watchdog Timer: Features an on-chip watchdog timer for enhanced system reliability.
9. Compatibility: It is pin-compatible with standard MCS-51 products, ensuring ease of integration into existing designs.
These features make the AT89C55WD-24PI suitable for a wide range of embedded applications.
Pinout
The AT89C55WD-24PI is a microcontroller from Atmel's 8051 family. It comes in a 40-pin Dual Inline Package (DIP). This microcontroller is based on an 8-bit CPU with embedded Flash memory for code storage, making it suitable for a variety of applications.
Key functions and pin assignments include:
- VCC (Pin 40): Power supply.
- GND (Pin 20): Ground.
- Port 0 (Pins 32-39): 8-bit open-drain bidirectional I/O port, also serves as address/data bus in external memory applications.
- Port 1 (Pins 1-8): 8-bit bidirectional I/O port with internal pull-ups.
- Port 2 (Pins 21-28): 8-bit bidirectional I/O port with internal pull-ups, used as high-order address bus signals in external memory mode.
- Port 3 (Pins 10-17): 8-bit bidirectional I/O port with internal pull-ups, provides special functions like interrupts, serial communication, and timer inputs.
- RESET (Pin 9): Resets the microcontroller.
- ALE/PROG (Pin 30): Address Latch Enable; used for external memory interfacing.
- PSEN (Pin 29): Program Store Enable; used to read external program memory.
- EA/VPP (Pin 31): External Access Enable; connects to VCC for internal program memory.
This design provides multiple I/O options and memory interfacing capabilities.
Key functions and pin assignments include:
- VCC (Pin 40): Power supply.
- GND (Pin 20): Ground.
- Port 0 (Pins 32-39): 8-bit open-drain bidirectional I/O port, also serves as address/data bus in external memory applications.
- Port 1 (Pins 1-8): 8-bit bidirectional I/O port with internal pull-ups.
- Port 2 (Pins 21-28): 8-bit bidirectional I/O port with internal pull-ups, used as high-order address bus signals in external memory mode.
- Port 3 (Pins 10-17): 8-bit bidirectional I/O port with internal pull-ups, provides special functions like interrupts, serial communication, and timer inputs.
- RESET (Pin 9): Resets the microcontroller.
- ALE/PROG (Pin 30): Address Latch Enable; used for external memory interfacing.
- PSEN (Pin 29): Program Store Enable; used to read external program memory.
- EA/VPP (Pin 31): External Access Enable; connects to VCC for internal program memory.
This design provides multiple I/O options and memory interfacing capabilities.
Manufacturer
The AT89C55WD-24PI is manufactured by Microchip Technology Inc. Microchip is a semiconductor company that designs and manufactures microcontrollers, memory, and analog and interface products. It is well-known for its extensive range of microcontrollers and embedded control solutions, catering to a wide array of industries including automotive, aerospace, consumer electronics, and industrial applications. The company is recognized for providing reliable and cost-effective solutions that facilitate the development of various electronic products.
Application
The AT89C55WD-24PI is an 8-bit microcontroller from Atmel's 8051 family, suited for various embedded systems applications. Its primary uses include:
1. Consumer Electronics: Controls in appliances like microwaves and washing machines.
2. Industrial Automation: Used in process control and machine automation.
3. Automotive: Manages functions in systems like engine control and infotainment.
4. Communication Devices: In communication protocol management and data transmission.
5. Medical Devices: Supports low-power medical equipment and monitoring systems.
6. Security Systems: Manages operations in alarm systems and access control.
Its versatility makes it ideal for applications requiring reliable performance and low power consumption.
1. Consumer Electronics: Controls in appliances like microwaves and washing machines.
2. Industrial Automation: Used in process control and machine automation.
3. Automotive: Manages functions in systems like engine control and infotainment.
4. Communication Devices: In communication protocol management and data transmission.
5. Medical Devices: Supports low-power medical equipment and monitoring systems.
6. Security Systems: Manages operations in alarm systems and access control.
Its versatility makes it ideal for applications requiring reliable performance and low power consumption.
Package
The AT89C55WD-24PI is a microcontroller from Atmel, featuring a 40-pin dual in-line package (DIP). It operates at a clock speed of up to 24 MHz and belongs to the 8051 family of microcontrollers, designed for embedded systems.
