The SN65LBC174A and SN75LBC174A are
quadruple differential line drivers with 3-state outputs, designed for TIA/EIA-485
(RS-485), TIA/EIA-422 (RS-422), and ISO 8482 applications.
These devices are optimized for
balanced multipoint bus transmission at signaling rates up to 30 million bits per
second. The transmission media may be printed-circuit board traces, backplanes, or
cables. The ultimate rate and distance of data transfer is dependent upon the
attenuation characteristics of the media and the noise coupling to the
environment.
Each driver features current limiting
and thermal-shutdown circuitry making it suitable for high-speed multipoint
applications in noisy environments. These devices are designed using LinBiCMOS, facilitating low
power consumption and robustness.
The two EN inputs provide pair-wise
driver enabling, or can be externally tied together to provide enable control of all
four drivers with one signal. When disabled or powered off, the driver outputs
present a high-impedance to the bus for reduced system loading.
The SN75LBC174A is characterized for
operation over the temperature range of 0°C to 70°C. The SN65LBC174A is
characterized for operation over the temperature range of –40°C to 85°C.
The SN65LBC174A and SN75LBC174A are
quadruple differential line drivers with 3-state outputs, designed for TIA/EIA-485
(RS-485), TIA/EIA-422 (RS-422), and ISO 8482 applications.
These devices are optimized for
balanced multipoint bus transmission at signaling rates up to 30 million bits per
second. The transmission media may be printed-circuit board traces, backplanes, or
cables. The ultimate rate and distance of data transfer is dependent upon the
attenuation characteristics of the media and the noise coupling to the
environment.
Each driver features current limiting
and thermal-shutdown circuitry making it suitable for high-speed multipoint
applications in noisy environments. These devices are designed using LinBiCMOS, facilitating low
power consumption and robustness.
The two EN inputs provide pair-wise
driver enabling, or can be externally tied together to provide enable control of all
four drivers with one signal. When disabled or powered off, the driver outputs
present a high-impedance to the bus for reduced system loading.
The SN75LBC174A is characterized for
operation over the temperature range of 0°C to 70°C. The SN65LBC174A is
characterized for operation over the temperature range of –40°C to 85°C.