The uPD8085AHD-2, manufactured by NEC, is an 8-bit microprocessor. It is a enhanced version of the Intel 8085 microprocessor, a widely used processor in the late 1970s and early 1980s. It is a general-purpose microprocessor designed for a variety of control and data processing applications.

Applications

• Industrial control systems
• Embedded systems
• Instrumentation
• Robotics
• Early personal computers and terminals

Features

• 8-bit data bus
• 16-bit address bus
• 64KB addressable memory
• Multiple interrupt inputs
• Serial I/O port
• Single 5V power supply

Benefits

• Cost-effective solution for control applications
• Easy to interface with peripheral devices
• Widely supported by development tools and software
• Reliable and robust performance
• Small package size

Additional Details

The uPD8085AHD-2 operates at a clock frequency of up to 5 MHz. It includes a set of general-purpose registers, an accumulator, and a stack pointer. The instruction set includes a variety of arithmetic, logical, and data transfer instructions. The device supports multiple interrupt inputs, allowing for real-time response to external events. The serial I/O port allows for communication with serial devices. The uPD8085AHD-2 is typically available in a 40-pin DIP package. It requires a single 5V power supply for operation. The microprocessor's architecture and instruction set are well-documented, making it relatively easy to program and debug. The uPD8085AHD-2 remains a viable option for legacy systems and for applications where a simple and reliable microprocessor is required. The integrated serial port enables communication with peripherals without requiring external UARTs.