AT89C51RD2-SLSUM

Name: AT89C51RD2-SLSUM
Rating: 4.5 (10 reviews)

MCU 8-bit 8051 CISC 64KB Flash 3.3V/5V 44-Pin PLCC Tube

3,717 Effective Inventory

AT89C51RD2-SLSUM

Effective Inventory3,717

MCU 8-bit 8051 CISC 64KB Flash 3.3V/5V 44-Pin PLCC Tube

Manufacturer Part # : AT89C51RD2-SLSUM
Package/Case: PLCC-44
Brand: Microchip Technology
Product Categories : Microcontrollers

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All parts procured from our supply chain network undergo a rigorous incoming inspection process. This meticulous inspection ensures that the parts received by our customers are authentic and meet the required standards. Additionally, we maintain detailed records of these inspections to ensure transparency and traceability throughout the supply chain.

Certification

We have successfully obtained various certification standards and have established our own professional testing laboratory. This ensures that every product we supply to our customers meets the highest quality standards. We adhere to strict testing protocols to maintain the consistency and accuracy of our products. To ensure that our products are original and genuine, we also collaborate with reputable third-party testing facilities to conduct rigorous quality testing. Our commitment to quality extends to meeting industry, legal, regulatory, and ISO 9001:2015 requirements.

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About Shipping

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Service & Packaging

About After Sales Service

All Parts Extended Quality Guarantee

Initiate the application within 90 days from the shipment date.

Confirm the return or exchange with our staff.

Maintain the goods in their original condition as received.

Lastly, please note that the eligibility for return or exchange of goods is subject to an assessment of the actual condition of the returned items. We will evaluate the received goods before finalizing the return or exchange process. If you have any inquiries or require further assistance regarding returns or exchanges, please don't hesitate to contact us at [email protected]

About packaging

Regarding packaging, our products are carefully packed in anti-static bags to provide ESD anti-static protection. The outer packaging is durable with secure closure. We support various packaging methods such as Tape and Reel, Cut Tape, Tube, or Tray.

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AT89C51RD2-SLSUM DataSheet

Current price plan is under preparation. Please contact our customer service team for the latest pricing information. Thank you for your understanding and support!

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Details

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

Key Features

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

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

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

Datasheet PDF

Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.

Preliminary Specification AT89C51RD2-SLSUM PDF Download

FAQs

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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AT89C51RD2-SLSUM

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