The SN65LBC173A and SN75LBC173A are
quadruple differential line receivers with 3-state outputs, designed for TIA/EIA-485
(RS-485), TIA/EIA-422 (RS-422), and ISO 8482 (Euro RS-485) applications.These devices are optimized for
balanced multipoint bus communication at data rates up to and exceeding 50 million
bits per second. The transmission media may be twisted-pair cables, printed-circuit
board traces, or backplanes. The ultimate rate and distance of data transfer is
dependent upon the attenuation characteristics of the media and the noise coupling
to the environment.Each receiver operates over a wide
range of positive and negative common-mode input voltages, and features ESD
protection to 6 kV, making it suitable for high-speed multipoint data transmission
applications in harsh environments. These devices are designed using LinBiCMOSt,
facilitating low power consumption and robustness.The G and G inputs provide enable control logic
for either positive- or negative-logic enabling all four drivers. When disabled or
powered off, the receiver inputs present a high-impedance to the bus for reduced
system loading.The SN75LBC173A is characterized for
operation over the temperature range of 0°C to 70°C. The SN65LBC173A is
characterized over the temperature range from −40°C to 85°C.
