74F258A

QUAD 2-INPUT MULTIPLEXER WITH 3-STATE OUTPUTS The MC74F258A is a quad 2-input multiplexer with 3-state outputs. Four bits of data from two sources can be selected using a common Data Select input. The four outputs present the selected data in the complement (inverted) form. The outputs may be switched to a high impedance state with a HIGH on the common Output Enable (OE) input, allowing the outputs to interface directly with bus-oriented systems. Multiplexer Expansion by Tying Outputs Together Inverting 3-State Outputs AC Enhanced Version of the F258 CONNECTION DIAGRAM (TOP VIEW) VCC OE I0c I1c Zc I0d I1d Zd 16 15 14 13 12 11 10 9 MC74F258A QUAD 2-INPUT MULTIPLEXER WITH 3-STATE OUTPUTS FAST™ SCHOTTKY TTL 16 1 J SUFFIX CERAMIC CASE 620-09 12345678 S I0a I1a Za I0b I1b Zb GND LOGIC DIAGRAM OE I0a I1a I0b I1b I0C I1C I0D I1C S Za Zb Zc Zd 16 1 N SUFFIX PLASTIC CASE 648-08 16 1 D SUFFIX SOIC CASE 751B-03 ORDERING INFORMATION MC54FXXXAJ Ceramic MC74FXXXAN Plastic MC74FXXXAD SOIC LOGIC SYMBOL 1 4 7 12 9 VCC = PIN 16 GND = PIN 8 S OE Za I0a I1a Zb I0b I1b Zc I0c I1c Zd I0d I1d 15 2 3 5 6 14 13 11 10 FAST AND LS TTL DATA 4-130 MC74F258A FUNCTION TABLE Output Enable OE H L L L L H = HIGH Voltage Level L = LOW Voltage Level X = Don’t Care Z = High Impedance Select Input S X H H L L Data Inputs I0 I1 XX XL XH LX HX Output Z Z H L H L GUARANTEED OPERATING RANGES Symbol Parameter VCC TA IOH IOL Supply Voltage Operating Ambient Temperature Range Output Cur...