DS3486 Quad RS-422, RS-423 Line Receiver
May 1998
DS3486 Quad RS-422, RS-423 Line Receiver
General Description
National’s quad RS-422, RS-423 receiver features four independent receivers which comply with EIA Standards for the electrical characteristics of balanced/unbalanced
voltage digital interface circuits.
Receiver outputs are 74LS compatible, TRI-STATE ® structures which are forced to a high impedance state when the appropriate output control pin reaches a logic zero condition.
A PNP device buffers each output control pin to assure minimum loading for either logic one or logic zero inputs.
In addition, each receiver has internal hysteresis circuitry to improve noise margin and discou...