MC68336ACFT20

The MC68336ACFT20 is an embedded microcontroller from the popular Motorola 68000 family of microprocessors. It is an enhanced version of the 683xx family, that offers much of the same functionality as the standard processors in a more compact and power-efficient format. In particular, it contains a 16-bit, 60MHz central processing unit (CPU) and up to 6 megabytes (MB) of on-chip random access memory (RAM).

Application Field

Due to its small size, high performance, and low power consumption, the MC68336ACFT20 is ideally suited for a wide range of embedded control and monitoring applications. It can be used in a variety of consumer electronics, automotive, industrial control and network communications systems, including automotive navigation systems, home appliances, gaming systems, and medical instrumentation. It is also used in industrial process and machine control systems, as well as in military, aerospace and instrumentation systems.

Additionally, the MC68336ACFT20 is well-suited for embedded video and graphics applications. Its high-speed CPU and integrated video capabilities make it perfect for advanced user interfaces for consumer electronics, medical equipment and even industrial systems.

Working Principle

The core of the MC68336ACFT20 is the 16-bit Microprocessor Unit (MPU) which combines program instruction decoding and execution, data register management, and address translation. The MPU operates at a maximum core frequency of 60MHz, or at a maximum peripheral clock frequency of 33MHz. The MC68336ACFT20 also includes a Memory Management Unit (MMU), an instruction cache, and an on-chip Peripheral Interface Bus (PIB) for connecting peripheral devices.

The Memory Management Unit (MMU) manages the on-chip memory system, allowing multiple memory types to be used together and performance characteristics to be adjusted according to the application needs. It also supports the use of multiple memory chips connected on the same bus and the dynamic address conversion between multiple physical address ranges.

The Instruction Cache allows program instructions to be stored in a high-speed RAM to speed up the program execution. This makes the MC68336ACFT20 particularly suitable for high-speed data processing applications. The Instruction Cache also supports self-programming and dynamic loading/unloading of code.

The Peripheral Interface Bus (PIB) is used to communicate with the external devices. The PIB has four masters which can access the system bus independently. The master devices include the MPU, the Memory Management Unit (MMU), the Instruction Cache, and the PIB itself. The PIB also supports direct memory access transactions, allowing communication peripherals to access the system bus directly.

Overall, the MC68336ACFT20 is a very versatile, high-performance embedded microcontroller with a wide range of applications. It is capable of providing a very fast response time to real-time events and enabling advanced user interfaces in a low-power format.