DESCRIPTION

· The SN65176B and SN75176B are differential bus transceivers designed for bidirectional data communication on multipoint bus transmission lines.
· They comply with ANSI Standards TIA/EIA-422-B, TIA/EIA-485-A, and ITU Recommendations V.11 and X.27.
· These devices integrate a 3-state differential line driver and a differential input line receiver, both powered by a single 5-V supply.
· The driver and receiver have active-high and active-low enables, respectively, which can be externally connected for direction control.
· The devices feature wide common-mode voltage ranges, making them suitable for party-line applications.
· The driver supports up to 60 mA of sink or source current and includes current limiting and thermal shutdown protection.
· The receiver offers a minimum input impedance of 12 kΩ, an input sensitivity of ±200 mV, and a typical input hysteresis of 50 mV.

FEATURES

· Bidirectional transceivers compliant with ANSI TIA/EIA-422-B, TIA/EIA-485-A, and ITU V.11 and X.27 standards.
· Designed for multipoint transmission on long bus lines in noisy environments.
· 3-State driver and receiver outputs with individual enables.
· Wide input/output bus voltage ranges and ±60 mA driver output capability.
· Thermal shutdown protection and driver current limiting.
· Receiver features 12 kΩ minimum input impedance, ±200 mV input sensitivity, and 50 mV typical hysteresis.
· Operates from a single 5-V supply.

APPLICATIONS

· Chemical and gas sensors.
· Digital signage and human-machine interfaces (HMI).
· Motor controls for AC induction, brushed and brushless DC, stepper motors, and permanent magnets.
· TETRA base stations and telecom towers.
· Weigh scales and wireless repeaters.