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ST3485ECDR Arkusz danych(PDF) 1 Page - STMicroelectronics

Numer części ST3485ECDR
Szczegółowy opis  3.3 V powered, 15 kV ESD protected, up to 12 Mbps RS-485/RS-422 transceiver
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Producent  STMICROELECTRONICS [STMicroelectronics]
Strona internetowa  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

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November 2007
Rev 5
1/22
22
ST3485EB
ST3485EC
3.3 V powered, 15 kV ESD protected,
up to 12 Mbps RS-485/RS-422 transceiver
Features
ESD protection
– ±15 kV human body model
– ±8 kV IEC 1000-4-2 contact discharge
Operate from a single 3.3 V supply - no charge
pump required
Interoperable with 5 V logic
1 µA low current shutdown mode max
Guaranteed 12 Mbps data rate
-7 to 12 V common mode input voltage range
Half duplex versions available
Industry standard 75176 pinout
Current limiting and thermal shutdown for
driver overload protection
Guaranteed high receiver output state for
floating inputs with no signal present
Allow up to 64 transceivers on the bus
Description
The ST3485E is ±15 kV ESD protected, 3.3 V low
power transceiver for RS-485 and RS-422
communications. The device contains one driver
and one receiver in half duplex configuration. The
ST3485E transmits and receives at a guaranteed
data rate of at least 12 Mbps.
All transmitter outputs and receiver inputs are
protected to ±15 kV using Human Body Model.
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.
DIP-8
SO-8
Table 1.
Device summary
Order code
Temperature range
Package
Packaging
ST3485ECN
0 to 70 °C
DIP-8
50 parts per tube / 40 tube per box
ST3485ECDR
0 to 70 °C
SO-8 (tape and reel)
2500 parts per reel
ST3485EBDR
-40 to 85 °C
SO-8 (tape and reel)
2500 parts per reel
www.st.com


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