(MC74F242 / MC74F243) QUAD BUS TRANSCEIVERS WITH 3-STATE OUTPUTS FAST SCHOTTKY TTL
QUAD BUS TRANCEIVERS WITH 3-STATE OUTPUTS
The MC54/74F242 and MC54/74F243 are Quad Bus Transmitters/Receivers designed f...
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...