The Intel C80186-3 is a 16-bit microprocessor that was part of Intel's 80186 family. It is an enhanced version of the 8086 processor, integrating several system functions onto a single chip, which reduced component count and system cost. The '-3' likely indicates the clock speed version, suggesting a 6MHz clock speed. This processor was commonly used in embedded systems and industrial control applications during its era.

Applications:

• Embedded systems
• Industrial control systems
• Instrumentation
• Early PC-compatible systems (though less common than the 8086/8088)
• Communication controllers

Features:

• Integrated DMA controller
• Integrated interrupt controller
• Integrated timers
• Clock generator
• 16-bit data bus
• 1 MB addressable memory

Benefits:

• Reduced system component count and cost
• Improved system performance compared to the 8086
• Simplified system design with integrated peripherals
• Lower power consumption compared to discrete implementations
• Suitable for real-time applications

Additional Details:

The C80186-3 operates at a clock speed of 6 MHz. It features two DMA channels, allowing for high-speed data transfer between memory and peripherals without CPU intervention. The integrated interrupt controller supports both maskable and non-maskable interrupts. It also includes three 16-bit timers, which can be used for timing and counting applications. The processor is packaged in a 68-pin ceramic leadless chip carrier (CLCC) or a plastic leaded chip carrier (PLCC). The C80186 is software compatible with the 8086, allowing existing software to be easily ported to the new platform. The integration of key system functions made the C80186 a popular choice for embedded systems where size, cost, and performance were critical factors.