MC74LVX138DTR2G ON Semiconductor

MC74LVX138 3-to-8 Line Decoder With 5VTolerant Inputs The MC74LVX138 is an advanced high speed CMOS 3to8 line decoder. The inputs tolerate voltages up to 7.0 V, allowing the interface of 5.0 V systems to 3.0 V systems. MC74LVX138 15 O0 14 O1 1 A0 13 O2 12 O3 SELECT 2 DATA A1 INPUTS OUTPUTS 11 O4 10 O5 3 A2 9 O6 7 O7 4 E1 ENABLE 5 E2 INPUTS 6 E3 Figure 1. Logic Diagram INPUTS OUTPUTS E1 E2 E3 A0 A1 A2 O0 O1 O2 O3 O4 O5 O6 O7 H X X X X X H H H H H H H H X H X X X X H H H H H H H H X X L X X X H H H H H H H H L L H L L L L H H H H H H H L L H H L L H L H H H H H H L L H L H L H H L H H H H H L L H H H L H H H L H H H H L L H L L H H H H H L H H H L L H H L H H H H H H L H H L L H L H H H H H H H H L H L L H H H H H H H H H H H L H = High Voltage Level L = Low Voltage Level X = High or Low Voltage Level and Transitions Are Acceptable For I reasons, DO NOT FLOAT CC Inputs A0 A1 A2 04 A3 A4 H 123 123 123 123 A0 A1 A2 E A0 A1 A2 E A0 A1 A2 E A0 A1 A2 E O0 O1 O2 O3 O4 O5 O6 O7 O0 O1 O2 O3 O4 O5 O6 O7 O0 O1 O2 O3 O4 O5 O6 O7 O0 O1 O2 O3 O4 O5 O6 O7 O0 O31 Figure 2. Expansion to 1of32 Decoding