Digital Logic Fundamentals Unit 1 – Introduction to the Circuit Board
UNIT 1 – INTRODUCTION TO THE CIRCUIT BOARD
UNIT OBJECTIVE
At the completion of this unit, you will be able to locate, identify, and connect digital circuits,
and demonstrate digital logic states by using the DIGITAL LOGIC FUNDAMENTALS circuit
board.
UNIT FUNDAMENTALS
LOGIC GATES
The DIGITAL LOGIC FUNDAMENTALS circuit board is composed of ten circuit blocks that
demonstrate different types of logic gates; there are also three voltage and signal support circuit
blocks.
Logic gate circuits consist of transistors that act like on/off switches. Most of the gates on the
circuit board are bipolar TTL (transistor to transistor logic) gates. A comparison of a bipolar
TTL gate and a CMOS gate is made on the TTL/CMOS COMPARISON circuit block.