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MC74F157N Datasheet(PDF) 1 Page - Motorola, Inc |
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MC74F157N Datasheet(HTML) 1 Page - Motorola, Inc |
1 / 2 page 4-67 FAST AND LS TTL DATA QUAD 2-INPUT MULTIPLEXER The MC74F157A is a high-speed quad 2-input multiplexer. Four bits of data from two sources can be selected using the common Select and Enable in- puts. The four buffered outputs present the selected data in the true (non-in- verted) form. The F157A can also be used to generate any four of the 16 differ- ent functions to two variables. • AC Enhanced Version of the F157 Zc CONNECTION DIAGRAM DIP (TOP VIEW) 15 16 14 13 12 11 10 2 1 3 4 5 6 7 VCC 9 8 E I0c I1c Zc I0d I1d Zd S I0a I1a Za I0b I1b Zb GND LOGIC DIAGRAM I0a I1a I0b I1b I0c I1b I1c I0d S E I1d Za Zb Zd FUNCTION TABLE Inputs Output E S I0 I1 Z H X X X L L H X L L L H X H H L L L X L L L H X H H = HIGH Voltage Level; L = LOW Voltage Level; X = Don’t Care MC74FXXXJ Ceramic MC74FXXXN Plastic MC74FXXXD SOIC MC74F157A QUAD 2-INPUT MULTIPLEXER FAST ™ SHOTTKY TTL J SUFFIX CERAMIC CASE 620-09 N SUFFIX PLASTIC CASE 648-08 16 1 16 1 ORDERING INFORMATION 16 1 D SUFFIX SOIC CASE 751B-03 LOGIC SYMBOL 12 13 14 15 1 2 3 4 7 5 6 11 10 9 Za Zb Zc Zd I1a I0a E I0c I1c I1d I0d I0b I1b VCC = PIN 16 GND = PIN 8 S |
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