GENERAL DESCRIPTION
The CBM485 is low-power transceivers for
RS-485 and RS-422 communication. IC
contains one driver and one receiver.
The driver slew rates of the CBM485 is not
limited, allowing them to transmit up to 10
Mbps.
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 CBM485 is designed
for half-duplex applications.
