SN75176BDR(UMW)

SN75176B / SN65176B is a high-speed differential three-state bus/line transceiver designed to meet EIA standard RS-485 requirements, featuring an extended common-mode range (+12V to -7V) for multipoint data transmission. It is also compatible with RS-422. Both driver and receiver outputs are three-state capable, and the driver output operates throughout the full +12V to -7V common-mode range. A thermal shutdown circuit handles bus contention or fault conditions that cause excessive internal power dissipation, forcing the driver outputs into a high-impedance state. DC specifications are guaranteed over a temperature range of -40°C to 105°C and a supply voltage range of 4.75V to 5.25V.

Key features

• Compliant with EIA RS485 standard for multipoint bus transmission; compatible with RS-422
• Small outline (SOIC) package option for minimized board space
• Driver propagation delay: 22 ns
• Single +5V supply
• Bus common-mode range of -7V to +12V allows ±7V ground potential difference between devices on the bus
• Thermal shutdown protection
• High impedance to the bus throughout the common-mode range when driver is in tri-state or powered down, allowing unused devices on the bus to be powered off
• Combined driver output and receiver input impedance less than one RS485 unit load, supporting up to 32 transceivers on the bus
• Typical receiver hysteresis: 70mV
• Maximum data rate: 10Mbps