AT89C51RD2-SLSUM
MCU 8-bit 8051 CISC 64KB Flash 3.3V/5V 44-Pin PLCC TubeAT89C51RD2-SLSUM
MCU 8-bit 8051 CISC 64KB Flash 3.3V/5V 44-Pin PLCC Tube
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製造商零件號 # : AT89C51RD2-SLSUM
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包裝/封裝: PLCC-44
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製造商: Microchip Technology
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產品分類 : Microcontrollers
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AT89C51RD2-SLSUM 數據表
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目前的價格方案正在編制中。請聯絡我們的客戶服務團隊獲取最新的價格資訊。感謝您的理解和支援!
詳細說明
Furthermore, the compact 44-pin PLCC package of the AT89C51RD2-SLSUM makes it a perfect choice for space-constrained applications where size is a concern. Its wide operating voltage range of 2.7V to 5.5V ensures compatibility with a variety of power sources, making it a versatile option for a range of projects
![](/files/uploads/product/b/06e9fe2c8f70494ab62d5caad8439354.webp)
主要特徵
- 80C52 Compatible– 8051 Instruction Compatible– Six 8-bit I/O Ports (64 Pins or 68 Pins Versions)– Four 8-bit I/O Ports (44 Pins Version)– Three 16-bit Timer/Counters– 256 Bytes Scratch Pad RAM– 9 Interrupt Sources with 4 Priority Levels Integrated Power Monitor (POR/PFD) to Supervise Internal Power Supply ISP (In-System Programming) Using Standard VCC Power Supply 2048 Bytes Boot ROM Contains Low Level Flash Programming Routines and a Default Serial Loader High-speed Architecture– In Standard Mode: 40 MHz (Vcc 2.7V to 5.5V, both Internal and external code execution) 60 MHz (Vcc 4.5V to 5.5V and Internal Code execution only)– In X2 mode (6 Clocks/machine cycle) 20 MHz (Vcc 2.7V to 5.5V, both Internal and external code execution) 30 MHz (Vcc 4.5V to 5.5V and Internal Code execution only) 64K Bytes On-chip Flash Program/Data Memory– Byte and Page (128 Bytes) Erase and Write– 100k Write Cycles On-chip 1792 bytes Expanded RAM (XRAM)– Software Selectable Size (0, 256, 512, 768, 1024, 1792 Bytes)– 768 Bytes Selected at Reset for T89C51RD2 Compatibility On-chip 2048 Bytes EEPROM Block for Data Storage (AT89C51ED2 Only) 100K Write Cycles Dual Data Pointer Variable Length MOVX for Slow RAM/Peripherals Improved X2 Mode with Independent Selection for CPUand Each Peripheral Keyboard Interrupt Interface on Port 1 SPI Interface (Master/Slave Mode) 8-bit Clock Prescaler 16-bit Programmable Counter Array– High Speed Output– Compare/Capture– Pulse Width Modulator– Watchdog Timer Capabilities Asynchronous Port Reset Full-duplex Enhanced UART with Dedicated Internal Baud Rate Generator Low EMI (Inhibit ALE) Hardware Watchdog Timer (One-time Enabled with Reset-Out), Power-off Flag Power Control Modes: Idle Mode, Power-down Mode Single Range Power Supply: 2.7V to 5.5V Industrial Temperature Range (-40 to +85°C) Packages: PLCC44, VQFP44, PLCC68, VQFP64
規格
以下是所選零件的基本參數,涉及零件的特性及其所屬類別。
Program Memory Size (KB) | 64 | RAM (bytes) | 2 |
Data EEPROM (bytes) | 0 | Pin Count ! | 44 |
Operation Voltage Max.(V) | 5.5 | Operation Voltage Min.(V) | 2.7 |
Timers | 0 x 8-bit - 0 x 16-bit | Max ADC Resolution (bits) | 0 |
ADC Channels | 0 | Zero Cross Detect | No |
Number of Comparators | 0 | SPI | 1 -SPI |
I2C | 0 -I2C | Stand alone PWM | 0 |
Low Power | No | Numerically Controlled Oscillator (NCO) | 0 |
Data Signal Modulator (DSM) | 0 |
數據表 PDF
數據表記錄了器件的特性、絕對最大額定值、應用等,這對於作為器件特定應用的整體指南大有裨益。
常見問題解答
What is AT89C51RD2-SLSUM?
The AT89C51RD2-SLSUM is a high-performance, low-power 8-bit microcontroller from Atmel (now Microchip Technology). It is part of the 8051 family of microcontrollers and is suitable for a wide range of embedded applications.
How Does AT89C51RD2-SLSUM Work?
The AT89C51RD2-SLSUM operates as a microcontroller, executing program instructions stored in its memory to control and manage various functions in embedded systems. It features a powerful CPU, flash memory for program storage, volatile and non-volatile data memory, and various peripherals for interfacing with external devices.
How Many Pins does AT89C51RD2-SLSUM have and What are the Functions of the Pinout Configuration?
The AT89C51RD2-SLSUM is typically available in a 44-pin PLCC (Plastic Leaded Chip Carrier) package. The pinout configuration includes:
- VCC: Power supply pin.
- GND: Ground pin.
- Port 0 (P0.0 - P0.7): Bidirectional I/O pins.
- Port 1 (P1.0 - P1.7): Bidirectional I/O pins.
- Port 2 (P2.0 - P2.7): Bidirectional I/O pins.
- Port 3 (P3.0 - P3.7): Bidirectional I/O pins.
- RXD, TXD: Serial communication pins.
- INT0, INT1: External interrupt pins.
- XTAL1, XTAL2: Crystal oscillator connections.
What are the Pros and Cons of AT89C51RD2-SLSUM?
Pros:
- Compatibility: Part of the popular 8051 microcontroller family, ensuring a wide range of development tools and resources.
- Peripheral Integration: Offers multiple on-chip peripherals such as timers, serial communication interfaces, and interrupt controllers.
- Flash Memory: Allows for in-circuit reprogramming of the program memory.
- Low Power Consumption: Suitable for battery-operated or low-power applications.
- Industry Standard: Widely used in various embedded systems applications.
Cons:
- 8-Bit Architecture: Limited processing power compared to modern 32-bit microcontrollers.
- Memory Constraints: Limited amount of on-chip memory for program and data storage.
- Obsolete: Being part of the 8051 family, it may not offer the latest features and advancements found in newer microcontrollers.
Are There Any Equivalents/Alternatives to AT89C51RD2-SLSUM for Recommendation?
- The AT89S52 is a similar 8051 microcontroller with a higher clock speed and more on-chip memory.
- Alternatives to the AT89C51RD2-SLSUM include microcontrollers from other families such as the PIC series from Microchip or the AVR series from Atmel (now Microchip).
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