SN75LBC176DR .

The SN75LBC176DR is a monolithic differential Bus Transceiver designed for bidirectional data communication on multipoint bus-transmission lines. It is designed for balanced transmission lines and meets ANSI standard TIA/EIA-485-A (RS-485) and ISO 8482:1987(E). It combines a 3-state, differential line driver and a differential input line receiver, both of which operate from a single 5V power supply. The driver and receiver have active-high and active-low enables, respectively, which can externally connect together to function as a direction control. The driver differential outputs and the receiver differential inputs connect internally to form a differential input/output (I/O) bus port that is designed to offer minimum loading to the bus whenever the driver is disabled or VCC=0. This port features wide positive and negative common-mode voltage ranges, making the device suitable for party-line applications.

• High-speed low-Power LinBiCMOS™ circuitry
• Designed for high-speed operation in both serial and parallel applications
• Low skew
• Designed for multi-point bus transmission on long bus lines in noisy environments
• Wide positive and negative input/output bus voltage ranges
• Thermal-shutdown protection
• Driver positive-and negative-current limiting
• Open-circuit failsafe receiver design
• Glitch-free power-up and power-down protection
• 200µA Maximum very low disabled supply current
• ±200mV Maximum receiver input sensitivity
• 50mV Typical receiver input hysteresis
• Green product and no Sb/Br