The SN65HVD5X devices are 3-state differential
line drivers and differential-input line receivers
that operate with a 5-V power supply. Each driver
and receiver has separate input and output pins
for full-duplex bus communication designs. They
are designed for balanced transmission lines and
interoperation with ANSI TIA/EIA-485A,
TIA/EIA-422-B, ITU-T v.11 and ISO 8482:1993
standard-compliant devices.The SN65HVD50, SN65HVD51, and SN65HVD52 are fully
enabled with no external enabling pins.The SN65HVD53, SN65HVD54, and SN65HVD55 have active-high driver enables and active-low
receiver enables. A low, less than 1 µA, standby current is achieved by disabling both the
driver and receiver.All devices are characterized for operation from
–40°C to 85°C.The high output feature of the SN65HVD5x provides
more noise margin than the typical RS-485 drivers.
The extra noise margin makes applications in long
cable and harsh noise environments possible.
