D ecoder 口F(ABC)=Em(24,57)=m2+m4+m5+m7 M2'+M4+M5+M7 ABcC YO O ABc Y1 Y2 o F Y3 o Y4 1-61 Y5 0-62AY6° 0—62BY7 74Ls138
Decoder F(A,B,C) =∑m(2,4,5,7) =m2+m4+m5+m7 =M2’+M4’+M5’+M7’ A B C G1 G2A’ G2B’ Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7 74LS138 F A B C 1 0 0
BCD Decoder 74x××42 is a bcd to decimal decoder - Figure 4.25 a It has 4 inputs and 10 outputs a The four-bit bcd input is decoded to one of ten outputs
BCD Decoder 74xxx42 is a BCD to decimal decoder. ◼ Figure 4.25 ◼ It has 4 inputs and 10 outputs. ◼ The four-bit BCD input is decoded to one of ten outputs
BCD to seven-segment Decoder a 74xXX47 is a BCD(8421)to seven-segment decoder driver Msi circuit An 8421BCD input is decoded, selecting which of the seven output are to be low directly driving one of the seven segment display LEDs Inputs are provided to permit display blanking and testine
BCD to seven-segment Decoder 74xxx47 is a BCD(8421) to seven-segment decoder driver MSI circuit. ◼ An 8421BCD input is decoded, selecting which of the seven output are to be low, directly driving one of the sevensegment display LEDs. ◼ Inputs are provided to permit display blanking and testing
BCD to seven-segment Decoder abcdefg 1111110 0110000 1101101
BCD to seven-segment Decoder a b c d f g a b c d e f g 1 1 1 1 1 1 0 0 1 1 0 0 0 0 1 1 0 1 1 0 1 e
BCD to seven-segment Decoder n Light-emitter diode leD) a Anode seven-segment LED disple a Segment be turned on by high level 1 a Cathode seven-segment LED display Segment be turned on by low level o
BCD to seven-segment Decoder g c b a d e F Light-emitter diode (LED) Anode seven-segment LED display ◼ Segment be turned on by high level 1 . Cathode seven-segment LED display ◼ Segment be turned on by low level 0