74F641 Octal Bus Transceiver with Common Output Enable, Non-Inverting (Open Collector)74F642 Octal Bus Transceiver with Common Output Enable, Inverting (Open Collector)FEATURES• High-impedance NPN base inputs for reduced loading(20mA in High and Low states)• Octal bidirectional bus interface• Common Output Enable for both Transmit and Receive modes• Open collector outputs sink 64mA• —74F641, non-inverting—74F642, inverting
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