LOW POWER RS-485/RS-422 TRANSCEIVER - ST Microelectronics
Description
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ST485E
±15KV ESD PROTECTED, LOW POWER RS-485/RS-422 TRANSCEIVER
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LOW QUIESCENT CURRENT: 300µA DESIGNED FOR RS-485 INTERFACE APPLICATIONS -7V TO 12V COMMON MODE INPUT VOLTAGE RANGE DRIVER MAINTAINS HIGH IMPEDANCE IN 3-STATE OR WITH THE POWER OFF 70mV TYPICAL INPUT HYSTERESIS 30ns PROPAGATION DELAYS, 5ns SKEW OPERATE FROM A SINGLE 5V SUPPLY CURRENT LIMITING AND THERMAL SHUTDOWN FOR DRIVER OVERLOAD PROTECTION ESD PROTECTION: ±15KV (H.
B.
M.
) ±8KV (IEC-1000-4-2 CONTACT DISCHARGE) ALLOWS UP TO 64 TRANSCEIVERS ON THE BUS
DIP
SOP
DESCRIPTION The ST485E is al low power transceiver for RS-485 and RS-422 communication.
Each driver output and receiver input is protected against ±15KV electrostatic discharge (H.
B.
M.
) (ESD) shocks, without latcup.
These parts contain one ORDERING CODES
Type ST485ECN ST485EBN ST485EXN ST485ECD ST485EBD ST485EXD ST485ECDR ST485EBDR ST485EXDR Temperature Range 0 to 70 °C -40 to 85 °C -55 to 125 °C 0 to 70 °C -40 to 85 °C -55 to 125 °C 0 to 70 °C -40 to 85 °C -55 to 125 °C Package
driver and one receiver in half duplex configuration.
This transceiver draw 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 place the driver outputs into a high-impedance state.
The ST485E is designed for bi-directional data communications on multipoint bus transmission line (half-duplex applications).
Comments 50parts per tube / 40tube per box 50parts per tube / 40tube per box 50parts per tube / 40tube per box 100parts per tube / 20tube per box 100parts per tube / 20tube per box 100parts per tube / 20tube per box 2500 parts per reel 2500 parts per reel 2500 parts per reel
DIP-8 DIP-8 DIP-8 SO-8 (Tube) SO-8 (Tube) SO-8 (Tube) SO-8 (Tape & Reel) SO-8 (Tape & Reel) SO-8 (Tape & Reel)
September 2003
1/13
ST485E
PIN CONFIGURATI...
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