MC74F157A

MC74F157A 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 inputs. The four buffered outputs present the selected data in the true (non-inverted) form. The F157A can also be used to generate any four of the 16 different functions to two variables. AC Enhanced Version of the F157 CONNECTION DIAGRAM DIP (TOP VIEW) VCC 16 E 15 I0c 14 I1c 13 Zc 12 I0d 11 I1d 10 Zd 9 J SUFFIX CERAMIC CASE 620-09 16 1 QUAD 2-INPUT MULTIPLEXER FAST™ SHOTTKY TTL 1 S 2 I0a 3 I1a 4 Za 5 I0b 6 I1b 7 Zb 8 GND N SUFFIX PLASTIC CASE 648-08 1 LOGIC DIAGRAM I0a I1a I0b I1b I0c I1c I0d I1d E S 16 16 1 D SUFFIX SOIC CASE 751B-03 ORDERING INFORMATION MC74FXXXJ MC74FXXXN MC74FXXXD Ceramic Plastic SOIC Za Zb Zc Zd LOGIC SYMBOL 1 FUNCTION TABLE Inputs E H L L L L S X H H L L I0 X X X L H I1 X L H X X Output Z L L H L H 9 VCC = PIN 16 GND = PIN 8 Zd 12 Zc 7 4 Za Zb S E I0a I1a I0b I1b I0c I1c I0d I1d 15 2 3 5 6 14 13 11 10 H = HIGH Voltage Level; L = LOW Voltage Level; X = Don’t Care FAST AND LS TTL DATA 4-67 MC74F157A GUARANTEED OPERATING RANGES Symbol VCC TA IOH IOL Supply Voltage Operating Ambient Temperature Range Output Current — High Output Current — Low Parameter 74 74 74 74 Min 4.5 0 Typ 5.0 25 Max 5.5 70 –1.0 20 Unit V °C mA mA DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified) Limits Symbol VIH VIL VIK VOH VOL IIH IIL IOS ICC Paramet...