MAX13448E pdf datasheet

The MAX13448E full-duplex RS-485transceiver features
inputs and outputs fault pro tected up to ±80V
(with respect to ground). The device operates from a
+3.0V to +5.5V supply and features true fail-safe circuitry,
guaranteeing a logic-high receiver output when
the receiver inputs are open orshorted. This enables all
receiver outputs on a terminated bus to output logichigh
when all transmitte rsare disabled.
The MAX13448E features a slew-rate limited driver that
minimizes EMI and reduces reflec tions caused by
improperly terminated cables, allowing error-free data
transmission at data rates up to 500kbps with a +5V
supply, and 250kbps with a +3.3V supply.
The MAX13448E includes a hot-swap capability to eliminate
false transitions on the bus during power-up or hot
insertion. The driver and receiver feature active-high and
active-low enables, respectively, that canbe connected
together externally to serve as a direction control.
The MAX13448E features an 1/8-unit lo adreceiver input
imp edance, allowing up to 256 transceivers on the bus.
All driver outputs are protected to ±8kV ESDusing the
Human Body Model. The MAX13448E is av ailable in a
14- pin SO package and operates over the extended
-40°C to +85°C temperature range.
Appl ications
Industrial Control Systems
HVAC Control systems
Utility Meters
Motor Driver Control Systems