AT89C51RD2UM

150 INR

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Product Details:

Operating Temperature -40C to +85C
Processor Speed 40 MHz
Features In-System Programming, Enhanced CPU, 2 UARTs, Up to 64 KB ISP Flash
Output Digital
Power Source External DC supply
Usage Embedded System Applications
Power Supply DC
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Product Description

AT89C51RD2UM Price And Quantity

Price Range 150.00 - 250.00 INR
Minimum Order Quantity 10 Piece
Price 150 INR

AT89C51RD2UM Product Specifications

Usage Embedded System Applications
Operating Temperature -40C to +85C
Power Supply DC
Color Black
Supply Voltage 4.0 V to 5.5 V
Output Digital
Size 40 Pin DIP
Power Source External DC supply
Interface UART, SPI, I2C
Function Microcontroller Unit
Current Rating 25 mA (Maximum) typ.
Processor Speed 40 MHz
Thickness Standard IC Package
Product Type Microcontroller IC
Frequency 40 MHz Max
Capacity 64 KB Flash Memory
Application Consumer Electronics, Industrial Automation, Embedded Systems
Components AT89C51RD2UM Chip
Dimension (L*W*H) Approx. 52 mm x 15 mm x 5 mm
Weight Approximately 3 grams
Input Digital
Rated Voltage 5 V
Features In-System Programming, Enhanced CPU, 2 UARTs, Up to 64 KB ISP Flash

AT89C51RD2UM Trade Information

Main Domestic Market All India

Product Description

Specification

ADC Resolution	No ADC
Length	16.7 mm
Width	16.7 mm
Unit Weight	0.084185 oz
Supply Voltage Min	2.7 V
Supply Voltage Max	5.5 V
Subcategory	Microcontrollers - MCU
Program Memory Type	Flash
Program Memory Size	64 kB
Processor Series	AT89x
Packaging	Tube
Package Case	PLCC-44
Operating Supply Voltage	2.7 V to 5.5 V
Number of Timers Counters	3 Timer
Number of IOs	32 I/O
Mounting Style	SMD/SMT
Minimum Operating Temperature	- 40 C
Maximum Operating Temperature	+ 85 C
Maximum Clock Frequency	60 MHz
Interface Type	SPI, UART
Height	3.48 mm
Data RAM Size	2 kB
Data Bus Width	8 Bit

Versatile Architecture for Embedded Systems

The AT89C51RD2UM microcontroller harnesses an 8051-compatible architecture, ensuring seamless integration into established development environments. Its 8-bit data width promotes efficient data handling, while on-chip debug features and system-level interfaces make it a practical choice for rapid prototyping in embedded solutions ranging from consumer electronics to industrial controls.

Robust Memory and Data Retention

With 64 KB In-System Programmable (ISP) Flash and 1792 Bytes of RAM, the AT89C51RD2UM provides ample space for code and data storage. The flash memory supports up to 100,000 write/erase cycles and guarantees data retention for at least 10 years at temperatures up to 85C, ensuring reliability in long-term and critical applications.

Comprehensive Connectivity and I/O

Equipped with 32 I/O pins, 2 PWM channels, and communication interfaces including UART, SPI, and I2C, the AT89C51RD2UM offers flexible and extensive I/O options. Its external memory interface further broadens its applications, allowing for expansion in complex embedded projects.

FAQs of AT89C51RD2UM:

Q: How is the AT89C51RD2UM programmed and debugged?

A: The AT89C51RD2UM supports in-system programming (ISP) and on-chip debug, enabling you to program and debug the microcontroller directly on the target board with popular 8051-compatible debuggers and programmers. This facilitates efficient development and troubleshooting without removing the chip from its circuit.

Q: What are the primary usage applications for the AT89C51RD2UM microcontroller?

A: This microcontroller is ideal for use in embedded systems, including consumer electronic devices, industrial automation solutions, and other applications requiring reliable digital control and robust memory. Its versatility also makes it suitable for prototyping and educational purposes.

Q: When should I choose the AT89C51RD2UM for my project over other microcontrollers?

A: Choose the AT89C51RD2UM when your project requires an 8051-compatible microcontroller with substantial Flash and RAM, a wide input voltage range, hardware timers, multiple communication interfaces (UART, SPI, I2C), and robust data retention. It is particularly advantageous for applications needing long-term reliability and frequent reprogramming.

Q: Where can I source the AT89C51RD2UM microcontroller in India?

A: You can purchase the AT89C51RD2UM from electronic component distributors, manufacturers, importers, suppliers, traders, and wholesalers throughout India. Both online and offline distribution channels are available for procurement.

Q: What benefits does the AT89C51RD2UM offer in industrial environments?

A: In industrial settings, the AT89C51RD2UM delivers high processing speed (up to 40 MHz), wide operating temperature range (-40C to +85C), and 100,000 flash write/erase endurance. Its watchdog timer, multiple I/O, and robust connectivity interfaces ensure reliability and consistent system performance.

Q: How does the external memory interface expand the capabilities of the AT89C51RD2UM?

A: The external memory interface allows users to connect additional memory or peripheral devices, enabling the development of more complex embedded systems beyond the built-in resources, thus supporting applications requiring greater data storage or additional functionalities.

Q: What is the process for integrating the AT89C51RD2UM into a new embedded system design?

A: Integration involves selecting a suitable package (DIP-40, PLCC-44, or TQFP-44), designing the PCB to accommodate 32 I/O pins and required interfaces, configuring the oscillator, connecting the power supply (4.0 V to 5.5 V DC), and using a supported programmer to load the application firmware via ISP.

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