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ST485

ST Microelectronics
Part Number ST485
Manufacturer ST Microelectronics
Description Low power RS-485/RS-422 transceiver
Published Mar 21, 2007
Detailed Description www.DataSheet4U.com ST485 Low power RS-485/RS-422 transceiver General features I I I I I I I I I Low quiescent current...
Datasheet PDF File ST485 PDF File

ST485
ST485

Overview
www.
DataSheet4U.
com ST485 Low power RS-485/RS-422 transceiver General features I I I I I I I I I Low quiescent current: 300mA Designed for RS-485 interface application -7V to 12V common mode input voltage range Driver maintains high impedance in 3-state or with the power OFF 70mV tipycal input hysteresis 30ns propagation delay, 5ns skew Operate from a single 5V supply Current limiting and thermal shutdown for driver overload protection Allows up to 64 transceivers on the bus DIP-8 SO-8 Description The ST485 is al low power transceiver for RS-485 and RS-422 communication.
Each part contains one driver and one receiver.
This transceiver draw 300mA (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 placed the driver outputs into a high-impedance state.
The ST485 is designed for bi-directional data communications on multipoint bus transmission line (half-duplex applciations).
The ST485 is available in three temperature range: commercial (0°C to 70°C), industrial (40°C to 850°C) and automotive (-55°C to 125°C) Order code Part number ST485CN ST485BN ST485XN ST485CD ST485BD ST485CDR ST485BDR ST485XDR Temperature range 0 to 70 °C -40 to 85 °C -55 to 125 °C 0 to 70 °C -40 to 85 °C 0 to 70 °C -40 to 85 °C -55 to 125 °C Package DIP-8 DIP-8 DIP-8 SO-8 (Tube) SO-8 (Tube) SO-8 (Tape & reel) SO-8 (Tape & reel) SO-8 (Tape & reel) 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 2500 parts per reel 2500 parts per reel 2500 parts per reel March 2006 Rev 12 1/19 www.
st.
com 19 Contents ST485 Contents 1 Pin configuration .
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3 1.
1 Pin description .
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