DIGITAL ELECTRONICS FUNDAMENTALLECTURER NAME : MISS NORHATINIGROUP NAME : MUHAMMAD YASZIQ BIN YUSOFFTUAN MUHAMMAD HAFIZ BIN TUAN MUHAMMAD RANINAND LOGIC GATEThe NAND gate can be said to be universal gates since combinationsof them can be used to accomplish an of the basic operations and can thus produce aninverter! an O" gate or anAND gate# The non$inverting gates do not have this versatilit since the can%t produce an invert#NAND gate &ill onl produce output lo& '() &hen all the input are high '*)! else the output are high '*)# Table +#,#* sho&s the truth table of NAND gate &ith t&o inputs A and -! and output .# Timing diagram in /gure belo& sho&s the output &aveform of a NAND gate .! &hen input &aveform A and - are applied#T&o inputs NO" gate &ith input A and -! and output . can be e0pressed in -oolean e0pression belo&1The part in the brac2et is an O" operation# The bar above the brac2et indicates that an result from the brac2et &ill be complimented#Application of NAND Logic Gate# -urglar alarm3hen the s&itch is closed one input of the NAND gate is LO3# 3hen the LD" is in the light the other input is LO3# This means that if either of these things happen! i#e# the s&itch is closed or the light is on one of the inputs is LO3! the output is 4IG4 and the bu55er sounds#CONCL67ION The outputs of all NAND gates are high ifanyof the inputs are lo The smbol is an AND gate &ith a small circle on the output# The small circle represents inversion# TheLogic NAND Gateis generall classed as a 86niversal9 gate because it is one of the most commonl used logic gate tpes#NANDgates can also be used to produce an other tpe of logic gate function! and in practice theNANDgate forms the basis of most practical logic circuits# - connecting them together in various combinations the three basic gate tpes ofAND!O"andNOT function can be formed using onlNAND:s#T4AN;