MC74F243

QUAD BUS TRANCEIVERS WITH 3-STATE OUTPUTS The MC54/74F242 and MC54/74F243 are Quad Bus Transmitters/Receivers designed for 4-line asynchronous 2-way data communication between data buses. 2-Way Asynchronous Data Bus Communication Input Clamp Diodes Limit High-Speed Termination Effects ESD > 4000 Volts MC54/74F242 MC54/74F243 QUAD BUS TRANSCEIVERS WITH 3-STATE OUTPUTS FAST™ SCHOTTKY TTL MC54/74F242 (TOP VIEW) VCC 14 OE2 13 NC 12 1B 11 2B 10 3B 9 4B 8 14 1 J SUFFIX CERAMIC CASE 632-08 1 OE1 2 NC 3 1A 4 2A 5 3A 6 4A 7 GND 14 1 N SUFFIX PLASTIC CASE 646-06 MC54/74F243 (TOP VIEW) VCC 14 OE2 13 NC 12 1B 11 2B 10 3B 9 4B 8 14 1 D SUFFIX SOIC CASE 751A-02 ORDERING INFORMATION MC54FXXXJ MC74FXXXN MC74FXXXD Ceramic Plastic SOIC 1 OE1 2 NC 3 1A 4 2A 5 3A 6 4A 7 GND GUARANTEED OPERATING RANGES Symbol VCC TA Supply Voltage Operating Ambient Temperature Range Parameter 54,74 54 74 IOH IOL Output Current — High 54 74 Output Current — Low 54 74 Min 4.5 –55 0 Typ 5.0 25 25 Max 5.5 125 70 –12 –15 48 64 mA mA Unit V °C FAST AND LS TTL DATA 4-187 MC54/74F242 MC54/74F243 FUNCTION TABLE – MC54/74F242 Inputs OE1 L L H H D L H X X Output H L Z Z Inputs OE2 L L H H D X X L H Output Z Z H L FUNCTION TABLE – MC54/74F243 Inputs OE1 L L H H D L H X X Output L H Z Z Inputs OE2 L L H H D X X L H Output Z Z L H H = HIGH Voltage Level; L = LOW Voltage Level ; X = Don’t Care; Z = HIGH Impedance DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified...