Report

LOGIC DESIGN AND CIRCUITS BASIC LOGIC GATES Res. Assist. Hale İNAN 1 CONTENT Sample 14-bit ICs 74LS08 IC (AND) 74LS32 IC (OR) 74LS04 IC (NOT) 74LS00 IC (NAND) 74LS02 IC (NOR) 74LS86 IC (XOR) Breadboard Connection Steps 2 AND Gate (74LS08 IC) 3 Figure on the left represents 74LS08 IC. This device contains 4 independent and gates each of which performs the logic AND function. If both A and B are true, then Q is true. OR Gate (74LS32 IC) 4 Figure on the left represents 74LS32 IC. This device contains four independent gates each of which performs the logic OR function. If either A or B is true, then Q is true. NOT Gate (74LS04 IC) 5 Figure on the left represents 74LS04 IC. This device contains six independent gates each of which performs the logic INVERT function. If A is not true, then Q is true. NAND Gate (74LS00 IC) 6 Figure on the left represents 74LS00 IC. This device contains four independent gates each of which performs the logic NAND function. If either A or B are not true, then Q is true. NOR Gate (74LS02 IC) 7 Figure on the left represents 74LS02 IC. This device contains four independent gates each of which performs the logic NOR function. If both A and B are not true, then Q is true. Note that the pin configuration for the two integrated circuits is different. (NOR & AND) XOR Gate (74LS86 IC) 8 Figure on the left represents 74LS86 IC. This device contains four independent gates each of which performs the logic XOR function. SWITCH A switch is a component which controls the open-ness or closed-ness of an electric circuit. Open / Closed OFF state: Open-circuit (preventing current from flowing) ON state: Closed-circuit (allowing current to flow) 9 Breadboard Connections – Step 1 10 The red wire represents positive pin and black one represents negative pin. Breadboard Connections – Step 2 11 Breadboard Connections – Step 2 Cont. 12 Breadboard Connection – Step 3 13 Breadboard Connections – Step 4 Cont. 14 Breadboard Connections – Step 4 Cont. 15 Breadboard Connections – Step 5 16 Breadboard Connections – Step 5 Cont. 17 Breadboard Connections – Step 5 Cont. 18 Breadboard Connections – Step 5 Cont. 19 Breadboard Connections – Step 5 Cont. 20 Breadboard Connections – Step 6 21 Breadboard Connections – Step 7 22 Breadboard Connections - Step 7 Cont. 23 Breadboard Connections – Step 8 24 Breadboard Connections – Step 8 Cont. 25