Introduction
This book is a sequel to my first effort ‘PIC Microcontrollers, an Introduction
to Microelectronics’. This attempted to provide a comprehensive introduction
to the subject via a single type of microcontroller, which is essentially a com-
plete computer on a chip. The PIC was the first widely available device to use
flash memory, which makes it ideal for experimental work. Flash memory al-
lows the program to be replaced quickly and easily with a new version. It is
now commonplace, not least in our USB memory sticks, but also in a wide
range of electronic systems where user data need to be retained during power
down. Cheap flash memory microcontrollers have transformed the teaching of
microelectronics – they are re-usable and the internal ...