The SN65LBC176A, SN65LBC176AQ, and
SN75LBC176A differential bus transceivers are monolithic, integrated circuits
designed for bidirectional data communication on multipoint bus-transmission lines.
They are designed for balanced transmission lines and are compatible with ANSI
standard TIA/EIA-485-A and ISO 8482. The A version offers improved switching
performance over its predecessors without sacrificing significantly more power.
The SN65LBC176A, SN65LBC176AQ, and
SN75LBC176A combine a 3-state, differential line driver and a differential input
line receiver, both of which operate from a single 5-V 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. Very low device supply current can be achieved by disabling the driver
and the receiver.
The SN65LBC176A, SN65LBC176AQ, and
SN75LBC176A differential bus transceivers are monolithic, integrated circuits
designed for bidirectional data communication on multipoint bus-transmission lines.
They are designed for balanced transmission lines and are compatible with ANSI
standard TIA/EIA-485-A and ISO 8482. The A version offers improved switching
performance over its predecessors without sacrificing significantly more power.
The SN65LBC176A, SN65LBC176AQ, and
SN75LBC176A combine a 3-state, differential line driver and a differential input
line receiver, both of which operate from a single 5-V 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. Very low device supply current can be achieved by disabling the driver
and the receiver.