The correct answer is B. 8 bits.
The MC68HC05 is an 8-bit microcontroller family from Motorola. It was introduced in 1980 and is still in production today. The MC68HC05 is a popular choice for embedded systems due to its low cost, small size, and wide range of features.
The MC68HC05 has a 8-bit data bus and a 16-bit address bus. This means that it can access up to 64KB of memory. The MC68HC05 also has a number of built-in peripherals, including a timer, a serial port, and a parallel port.
The MC68HC05 is a versatile and powerful microcontroller that can be used in a wide variety of applications. It is a popular choice for embedded systems due to its low cost, small size, and wide range of features.
Here is a brief explanation of each option:
- Option A: 4 bits. This is incorrect because the MC68HC05 is an 8-bit microcontroller.
- Option B: 8 bits. This is the correct answer because the MC68HC05 is an 8-bit microcontroller.
- Option C: 16 bits. This is incorrect because the MC68HC05 is an 8-bit microcontroller.
- Option D: 32 bits. This is incorrect because the MC68HC05 is an 8-bit microcontroller.