MC68HC908MR32CFU

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The Motorola MC68HC908MR32CFU microcontroller is a very complex general‐purpose 8‐bit device of the M68HC08 series. It is a viable embedded solution for a broad range of applications.

Application Field:

The MC68HC908MR32CFU microcontroller is suited for a variety of low‐ and medium‐ complexity embedded applications. Examples include home appliances (such as microwaves, washing machines, and dishwashers), medical instruments, vending machines, automobile security systems and control, and home automation.

Working Principle:

The working principle of MC68HC908MR32CFU is based on an 8-bit central processing unit (CPU). The core operates on a single clock cycle, allowing for rapid execution of instructions. The CPU’s 32k of memory can store code, data, and variables. A dedicated address bus interfaces the CPU to external memory, ports, and peripheral devices. The MC68HC908MR32CFU is programmed in assembly or C language, allowing for flexibility in programming and a wide range of applications.

The MC68HC908MR32CFU includes a floating‐point unit (FPU) to accelerate mathematical operations and two parallel input/output (I/O) ports used to control external devices. Other available peripheral devices include serial communications, clock/calendar, timer, pulse‐width modulation (PWM) output, analog‐to‐digital converter (ADC) inputs, and an 8-channel multiplexed ADC. Communicating with a computer requires either a serial port or an RS232 interface.

Power savings are met through its usage of low voltage and low‐power standby modes. The MC68HC908MR32CFU also provides hardware support for debugging. Operating conditions can vary from -40°C to 85°C and a 2.7 to 5.5V operating voltage.

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