Tudi SN75LBC180AN-TUDI

The SN65LBC180/SN75LBC180 differential drivers and receivers are monolithic ICs designed for bidirectional data communication over long cables with transmission line characteristics. They are balanced or differential voltage-mode devices that meet or exceed the ANSI RS-485 industry standard requirements. These devices combine the low power consumption of CMOS with the precision and robustness of bipolar transistors in the same circuit. The SN65LBC180/SN75LBC180 combine a line driver with three-state outputs and a receiver, powered by a single 5V supply. The driver and receiver have separate active-high and active-low enable inputs that can be externally connected to implement direction control functionality. The driver differential outputs and receiver differential inputs are connected to separate terminals for full-duplex operation, and are designed to present minimum loading on the bus when disabled or powered down. These devices feature a wide common-mode voltage range, making them suitable for point-to-point or multipoint data bus applications. These devices also provide positive and negative output current limiting and thermal shutdown protection against line fault conditions. The SN75LBC180 is guaranteed to operate over the commercial temperature range of 0°C to 70°C. The SN65LBC180 is guaranteed to operate over the industrial temperature range of -40°C to 85°C.

• Designed for high-speed multipoint data transmission over long cables
• Supports pulse duration operation as low as 30ns
• Maximum supply current of 5 mA
• Three-state output for shared bus
• Common-mode voltage range of -7V to 12V
• Thermal shutdown protection against driver damage from bus contention
• Positive and negative output current limiting