DM8838 Datasheet | National Semiconductor

description ~- features The DM7838/DM8838 are quad high speed drivers!' receivers designed for use in bus organized datatransmission systems interconnected by termi- nated 120n Impedance lines. The external termi- nation is intended to be a 180n resistor from the bus to the +5V logic supply together with a 390n resistor from the bus to ground. The bus can be terminated at one or both ends. Low bus pin cur- rent allows up to 27 driver/receiver pairs to utilize a mon bus. The bus loading is unchanged when Vee = OV. The receivers Incorporate hystere- SIS to greatly enhance bus n Oise immunity. One two- lnput NOR gate is included tq disable all drivers In a package simultaneously. Receiver per- formance IS optimized for systems with bus r ISe and fall times::; 10}.1s. - 4 totally separate driver/receiver pairs per package - 1V typical receiver Input hysteres Is - Receiver hysteresis independent of...