ST485ERBDR

Active

15 kV ESD protected, low-power RS-485/RS-422 transceiver

Quantity $ per Unit Savings
1 - 9$3.010%
10 - 24$2.7010%
25 - 99$2.5615%
100$2.2226%
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$3.01
Parameter NameParameter Value
Operating Temp Min Celsius-40.0
Operating Temp Max Celsius85.0
ECCN USEAR99
ECCN EUNEC
Packing TypeTape And Reel
RoHs compliantEcopack3
GradeIndustrial
Package NameSO-8

The ST485E is al low power transceiver for RS485 and RS-422 communication. Each driver output and receiver input is protected against ±15KV electrostatic discharge (H.B.M.) ±8KV (IEC-1000-4-2 contact discharge) shocks, without latchup. These parts contain one driver and one receiver.


This transceiver draws 300µA (typ.) of supply current when unloaded or fully loaded with disabled drivers.


It operates from a single 5V supply.


Driver is short-circuit current limited and is protected against excessive power dissipation by thermal shutdown circuitry that places the driver outputs into a high-impedance state.


The ST485E is designed for bi-directional data communications on multipoint bus transmission line (half-duplex applciations).

Key features
  • Allows up to 256 transceivers on the bus
  • ESD protection: ±15KV (H.B.M.) ±8KV (IEC-1000-4-2 contact discharge)
  • Operate from a single 5V supply
  • 30ns propagation delay, 5ns skew
  • Low quiescent current: 300µA
  • -7V to 12V common mode input voltage range
  • Designed for RS-485 interface application
  • 70mV tipycal input hysteresis
  • Current limiting and thermal shutdown for driver overload protection
  • Driver maintains high impedance in 3-state or with the power OFF