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ST490ACN Folha de dados(PDF) 1 Page - STMicroelectronics

Nome de Peças ST490ACN
Descrição Electrónicos  Low power high speed RS-485/RS-422 transceiver
PDF  17 Pages
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Fabricante Electrônico  STMICROELECTRONICS [STMicroelectronics]
Página de início  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST490ACN Folha de dados(HTML) 1 Page - STMicroelectronics

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May 2006
Rev 3
1/17
17
Order code
Part number
Temperature range
Package
Packaging
ST490ACN
0 to 70 °C
DIP-8
50parts per tube / 40tube per box
ST490ABN
-40 to 85 °C
DIP-8
50parts per tube / 40tube per box
ST490ACDR
0 to 70 °C
SO-8 (Tape & Reel)
2500 parts per reel
ST490ABDR
-40 to 85 °C
SO-8 (Tape & Reel)
2500 parts per reel
ST490A
Low power high speed
RS-485/RS-422 transceiver
General features
s
Low supply current: 5mA max
s
-7V to 12V common mode input voltage range
s
70mV tipycal input hysteresis
s
Designed for 25Mbps operation
s
Operate from a single 5V supply
s
±4kV ESD protection
s
Current limiting and thermal shutdown for
driver overload protection
Description
The ST490A is a low power transceiver for RS-
485 and RS-422 communications. The device
contains one driver and one receiver in full duplex
configuration. The ST490A draws 5mA (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 receiver
input has a fail-safe feature that guarantees a
logic high output if both inputs are open circuit.
DIP-8
SO-8
www.st.com


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