MC74VHC157DTR2G

MC74VHC157 Quad 2-Channel Multiplexer The MC74VHC157 is an advanced highspeed CMOS quad 2 channel multiplexer, fabricated with silicon gate CMOS technology. It achieves highspeed operation similar to equivalent Bipolar Schottky TTL, while maintaining CMOS low power MC74VHC157 2 A0 4 3 Y0 B0 5 A1 7 6 Y1 B1 NIBBLE DATA 11 INPUTS A2 OUTPUTS 9 10 Y2 B2 14 A3 12 Y3 13 B3 15 E 1 S Figure 2. Expanded Logic Diagram 15 E EN 1 S G1 2 A0 MUX 1 4 Y0 3 B0 1 5 A1 7 Y1 6 B1 11 A2 9 Y2 10 B2 14 A3 12 Y3 13 B3 Figure 3. IEC Logic Symbol FUNCTION TABLE Inputs Outputs E SY0 Y3 H X L L L A0 A3 L H B0 B3 A0 A3, B0 B3 = the levels of the respective DataWord Inputs.