Difference between 8 bit microcontroller and 16 bit microcontroller

Main difference

Before discussing 8-bit and 16-bit microcontrollers, it is vitally important to understand what a microcontroller is. A microcontroller is a small, single chip that has an integrated circuit, a processor core, and integrated programmable I/O peripherals. 1 bit to 512 bit are frequent motif of microcontrollers. Here we are going to talk about 8 and 16 bit microcontrollers and their variations.

What is 8 bit microcontroller?

The 8-bit microcontroller is a type of microcontroller that has all the features of the microcontroller and its information devices are largely 8-bit. 8-bit large means that your CPU can use an 8-bit data bus or pipeline and can input similar sized data with a single machine instruction. For each instruction cycle, its jitter is from zero to 255. It requires 20mA of current to operate. Intel 8008 was the first model with an 8-bit microcontroller.

What is 16 bit microcontroller?

16-bit microcontroller is superior to 8-bit microcontroller. It is an additional and precise right in the performance of mathematical and technical tasks. Unlike the 8-bit microcontroller, it uses a 16-bit information bus or pipeline for a single instruction. For each instruction cycle, its bit jitter spans from zero to 65,535. Since the 16-bit driver is 2 times better than the 8-bit driver, it would probably work with two 16-bit numbers. It requires a current of 10mA to resist.

Key differences

  1. First it’s worth it. Although as a result of improvement in design, the comparability between the two has been reduced, nevertheless, the 8-bit microcontroller is cheaper than the 16-bit microcontroller.
  2. Having a 16 bit microcontroller means 16 bus or pipe to carry information which is 2 times better than an 8 bit microcontroller.
  3. Due to the large 16-bit bus, it can be realized faster and more successfully as a 16-bit microcontroller is considered.
  4. When performing mathematical capabilities, the 16-bit microcontroller is more correct and reliable than the 8-bit microcontroller.
  5. For each instruction cycle, the 8-bit jitter is from zero to 255, while the 16-bit jitter is from zero to 65535 for each cycle.
  6. Although the 16-bit microcontroller reveals a double cycle or 8-bit clock time, however, having a fast time clock means that additional energy and vitality will apparently be required to resist.
  7. The 8-bit microcontroller requires a current of 20 mA to work, which is 2 times better than the current requirement of the 16-bit microcontroller, which requires 10 mA.
  8. The 16-bit input and output peripherals are a further advance over the 8-bit microcontroller.
  9. The 8-bit microcontroller reveals a speed of 12 MIPS at 48 MHz, while 16-bit reveals the majority of 16 MIPS at 32 MHz, two times better than the 8-bit microcontroller.

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