The MD87C51FB/B is a microcontroller manufactured by Rochester Electronics. It is a re-manufactured or continuation of the Intel 87C51FB, an 8-bit microcontroller based on the MCS-51 architecture. Rochester Electronics specializes in providing continued support for end-of-life (EOL) and obsolete components, ensuring availability for long-lifecycle applications. This microcontroller is commonly used in embedded systems, control applications, and various industrial and consumer products.

Applications

• Embedded Control Systems
• Industrial Automation
• Motor Control
• Robotics
• Instrumentation

Features

• 8-bit Microcontroller
• MCS-51 Architecture
• 8KB EPROM Program Memory
• 256 Bytes of RAM
• 32 Programmable I/O Lines
• Two 16-bit Timer/Counters
• Full Duplex UART
• 6 Interrupt Sources

Benefits

• Provides a cost-effective solution for embedded control applications.
• Offers a familiar and well-supported architecture for easy development.
• Sufficient memory for many control applications.
• Flexible I/O capabilities for interfacing with external devices.
• Enables serial communication for data exchange with other systems.
• Allows for responsive control through interrupt handling.
• Ensures continued availability of a discontinued part through Rochester Electronics.

Additional Details

The MD87C51FB/B operates with a 5V power supply and typically runs at clock speeds up to 16 MHz. It includes a built-in UART for serial communication, allowing it to interface with devices such as sensors, displays, and other microcontrollers. The two 16-bit timer/counters can be used for timing events, generating PWM signals, and controlling motor speeds. The 32 programmable I/O lines provide ample connectivity for interfacing with external hardware. The EPROM program memory allows for easy reprogramming and experimentation during development. The microcontroller is typically packaged in a DIP (Dual In-line Package) or PLCC (Plastic Leaded Chip Carrier) for easy prototyping and integration into circuit boards. The /B suffix may indicate a specific speed grade or temperature range. Using Rochester Electronics assures that the microcontroller will be produced to the original manufacturer's specifications.

When programming the MD87C51FB/B, standard MCS-51 development tools and compilers can be used, simplifying the software development process.