DS3487
Description
National’s quad RS-422 driver features four independent drivers which ply with EIA Standards for the electrical characteristics of balanced voltage digital interface circuits. The outputs are TRI-STATE structures which are forced to a high impedance state when the appropriate output control pin reaches a logic zero condition. All input pins are PNP buffered to minimize input loading for either logic one or logic zero inputs.
Features n n n n n n n Four independent drivers TRI-STATE ® outputs Fast propagation times (typ 10 ns) TTL patible 5V supply Output rise and fall times less than 15 ns Pin patible with DS8924 and MC3487
Block and Connection Diagrams
Dual-In-Line Package
DS005780-1
DS005780-2
Top View Order Number DS3487M or DS3487N See NS Package Number M16A or N16E
Truth Table
Input H L X Control Input H H L Non-Inverting Output H L Z Inverting Output L H Z
L = Low logic state H = High logic state X = Irrelevant Z = TRI-STATE(high impedance)
TRI-STATE ® is a...
