SN75176BDR

IC TRANSCEIVER HALF 1/1 8SOP

FEATURES

• Meets EIA Standard RS485 for Multipoint Bus Transmission and is Compatible with RS-422.

• Small Outline (SOIC) Package Option Available for Minimum Board Space.

• 22nsDriver Propagation Delays.

• Single +5V Supply.

• −7Vto+12V Bus Common Mode Range Permits ±7V Ground Difference Between Devices on the Bus.

• Thermal Shutdown Protection.

• High Impedance to Bus with Driver in TRI STATE or with Power Off, Over the Entire Common Mode Range Allows the Unused Devices on the Bus to be Powered Down.

• Combined Impedance of a Driver Output and Receiver Input is Less Than One RS485 Unit Load, Allowing up to 32 Transceivers on the Bus.

• 70mVTypical Receiver Hysteresis.

DESCRIPTION

The SN75176B / SN65176B is a high speed differential TRI-STATE bus/line transceiver designed to meet the ® requirements of EIA standard RS485 with extended common mode range (+12V to −7V), for multipoint data transmission. In addition, it is compatible with RS-422.

The driver and receiver outputs feature TRI-STATE capability, for the driver outputs over the entire common mode range of +12V to −7V. Bus contention or fault situations that cause excessive power dissipation within the device are handled by a thermal shutdown circuit, which forces the driver outputs into the high impedance state.

DC specifications are guaranteed over the 0 to 70°C temperature and 4.75V to 5.25V supply voltage range.

Connection and Logic Diagram