DS8838 Datasheet - National Semiconductor

DS8838 Quad Unified Bus Transceiver

The DS8838 is a quad high speed driver/receiver designed for use in bus organized data transmission systems interconnected by terminated 120Ω impedance lines. The external termination is intended to be 180Ω resistor from the bus to the +5V logic supply together with a 390Ω resistor from the bus to g.

DS8838 Features

* n n n n n n n n n 4 totally separate driver/receiver pairs per package 1V typical receiver input hysteresis Receiver hysteresis independent of receiver output load Guaranteed minimum bus noise immunity of 1.3V, 2V typ. Temperature-insensitive receiver thresholds track bus logic levels 20 µA typical

DS8838_NationalSemiconductor.pdf