The SN75LBC184 and SN65LBC184 are differential data line transceivers in the trade-standard footprint of the SN75176 with built-in protection against high-energy noise transients. This feature provides a substantial increase in reliability for better immunity to noise transients coupled to the data cable over most existing devices. Use of these circuits provides a reliable low-cost direct-coupled (with no isolation transformer) data line interface without requiring any external components. The SN75LBC184 and SN65LBC184 can withstand overvoltage transients of 400-W peak (typical). The conventional combination wave called out in IEC 61000-4-5 simulates the overvoltage transient and models a unidirectional surge caused by overvoltages from switching and secondary lightning transients.

The SN75LBC184 and SN65LBC184 are differential data line transceivers in the trade-standard footprint of the SN75176 with built-in protection against high-energy noise transients. This feature provides a substantial increase in reliability for better immunity to noise transients coupled to the data cable over most existing devices. Use of these circuits provides a reliable low-cost direct-coupled (with no isolation transformer) data line interface without requiring any external components. The SN75LBC184 and SN65LBC184 can withstand overvoltage transients of 400-W peak (typical). The conventional combination wave called out in IEC 61000-4-5 simulates the overvoltage transient and models a unidirectional surge caused by overvoltages from switching and secondary lightning transients.

The SP485 is low-power transceivers for RS-485 and RS-  422 communication. IC contains one driver and one receiver.  The driver slew rates of the SP485 is not limited, allowing  them to transmit up to 2.5Mbps.  These transceivers draw between 120µA and 500µA of  supply current when unloaded or fully loaded with disabled  drivers. All parts operate from a single 5V supply. Drivers are  short-circuit current limited and are protected against  excessive power dissipation by thermal shutdown circuitry  that places the driver outputs into a high-impedance state.  The receiver input has a fail-safe feature that guarantees a  logic-high output if the input is open circuit. The SP485 is  designed for half-duplex applications.

The SP3485E is a 3.3V powered, half-duplex, low-power RS-485 transceiver that fully meets the  requirements of the TIA/EIA-485 standard. The SP3485E includes a driver and a receiver, both of which can be independently enabled and  disabled. When both are disabled, both the driver and the receiver output a high impedance state. The  SP3485E has a 1/8 load that allows 256 SP3485E transceivers to be connected to the same communication bus. Error-free data transfer of up to 12Mbps is possible. The SP3485E operates from a voltage range of 3.0 to 3.6V and features fail-safe, over temperature protection, current limit protection, over-voltage protection, and other functions.