COP8SAB728M8

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COP8SAB728M8 belongs to the field of embedded microcontrollers. It is a high-performance 8-bit CPU core chip produced by National Semiconductor. It integrates fast execution speed, low power consumption, programmable user-friendly I/O, high integration and many other features. It is widely used in power boards, lighting equipment, remote control equipment, feature telephones and other fields.

The core of COP8SAB728M8 is an 8-bit CPU that can operate at speeds up to 12MHz. It includes 32kB of reprogrammable FLASH memory and up to 384kB of SRAM memory. Its operating voltage is 3V to 5.5V, and its temperature range is -40°C to 85°C. In addition, it has built-in 3-channel PWM, two UARTs and three 16-bit timer/counters.

The working principle of COP8SAB728M8 is divided into four main stages: initialization, instruction fetching and decoding, executing, and interrupt handling. In the initialization stage, the CPU will reset itself and its internal clock, establish the system environment, such as setting up registers, setting the operating voltage and temperature range, etc. In the instruction fetching and decoding stage, the CPU fetches program instructions from memory and decodes them. After that, each instruction will be executed in the execution stage, accordingly to the context of the system. Finally, in the interrupt handling stage, the CPU will handle any software and hardware interrupt generated in the middle of the program.

COP8SAB728M8 is an important part in embedded system, which provides power boards, lighting equipment and remote control equipment with efficient programmable performance and high integration. It also has low power consumption and wide environmental temperature range. With these features, it is well-suited to be used in various embedded systems with harsh conditions.

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