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Microchip 8-bit 8051 Microcontroller AT89C2051, 4 MHz, 2kB FLASH, PDIP, 20 Pin AT89C2051
Specifications
| Country of Origin | India |
|---|---|
| Brand | Microchip |
| Height | 4.953mm |
| Length | 26.92mm |
| Model | AT89C2051 |
| Width | 7.11mm |
| Mount Type | Surface |
| Series | AT89C2051 |
| Maximum Operating Temperature | 85°C |
| Package Type | PDIP |
| Minimum Operating Temperature | -40°C |
| Interfaces | USB MCUs |
| Ram size | 128bit |
| Interface Type | SPI |
| Pin Count | 20 |
| Maximum Supply Voltage | 5.5V |
| Maximum Power Dissipation Pd | 1W |
| Minimum Supply Voltage | 2V |
| Device Core | 8051 |
| Program Memory Size | 2kB |
| Maximum Clock Frequency | 4MHz |
| Number of Programmable I/Os | 16 |
| Analogue Comparators | 2 |
| Number of Timers | 1 |
| Instruction Set Architecture | CISC |
| Program Memory Type | FLASH |
Key Features
- Features an 8-bit 8051 compatible core supporting CISC instruction set architecture.
- Integrated 2kB flash program memory and 128 bytes RAM for efficient data storage.
- Maximum clock frequency of 4 MHz ensures responsive operation for embedded applications.
- Includes 20-pin PDIP package with surface mount capability for versatile deployment.
- Equipped with SPI interface to connect with external devices and expand functionality.
- Operates reliably between -40°C and +85°C, suitable for harsh environments.
- Maximum supply voltage of 5.5V and minimum supply voltage of 2V offer flexible power options.
- Supports up to 16 programmable I/Os for digital interfacing and control.
Product Description
Microchip AT89C2051 8-bit 8051 Microcontroller is a compact and reliable solution for embedded system designs requiring efficient processing power and memory integration. This microcontroller is engineered with an 8051 core, executing a CISC instruction set, allowing compatibility and ease of programming for numerous industrial and commercial applications.
Features an 8-bit data bus width, making it ideal for handling basic computations and control tasks. 2kB of reprogrammable flash memory provides ample space for program storage and flexible development cycles. 128 bytes of RAM enable quick data handling and processing required by embedded applications.
The microcontroller includes a PDIP package with 20 pins, supporting both surface and through-hole mounting for adaptability. SPI interface included for straightforward communication with other system components and peripherals.
Maximum supply voltage of 5.5V and minimal supply voltage of 2V mean it can be integrated into various power environments. 16 programmable I/O lines allow extensive interfacing options, suitable for automated and control systems.
With a maximum clock frequency of 4 MHz, this microcontroller delivers responsive operation, supporting real-time tasks in industrial, laboratory, and automotive settings. Additional features include two analogue comparators and one timer, enhancing the device's capability for signal comparison and timing operations.
Designed to operate across a broad temperature range (-40°C to 85°C), the AT89C2051 microcontroller is robust against environmental stress, making it suitable for manufacturing, HVAC, process control, and commercial electronic systems. The FLASH program memory type ensures easy upgrades and maintenance.
Industrial applications for this microcontroller include automation controllers, instrumentation, process monitoring, embedded modules, and custom digital logic solutions. Its CISC architecture simplifies programming and compatibility with legacy 8051 systems, enabling designers and engineers to streamline development and integration.
Browse more Microchip Microcontrollers and industrial semiconductor solutions on EnvMart for high-quality components tailored to commercial and industrial use cases.
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Frequently Asked Questions
The maximum clock frequency of the AT89C2051 microcontroller is 4 MHz.
It features a program memory size of 2kB FLASH, allowing for ample storage for applications.
This model operates reliably between -40°C and +85°C, making it suitable for harsh environments.
The microcontroller supports up to 16 programmable I/Os for digital interfacing and control.
It comes in a 20-pin PDIP package, supporting both surface and through-hole mounting.
The AT89C2051 operates with a minimum supply voltage of 2V and a maximum supply voltage of 5.5V.
This microcontroller includes an SPI interface for connecting with external devices and expanding functionality.
It is equipped with 128 bytes of RAM for efficient data handling and processing.
The microcontroller includes one timer, enhancing its capability for timing operations.
It utilizes a CISC instruction set architecture, making it compatible with various programming applications.
The country of origin for this microcontroller is India.
In addition to its core features, it includes two analogue comparators for signal comparison.
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