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ST3485EBN Datasheet(PDF) 1 Page - STMicroelectronics

No. de pieza ST3485EBN
Descripción Electrónicos  3.3V POWERED, 15KV ESD PROTECTED, TRASMIT AT UP TO 12MBPS TRUE RS-485/RS-422 TRANSCEIVER
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST3485EBN Datasheet(HTML) 1 Page - STMicroelectronics

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October 2002
s
ESD PROTECTION:
±15KV HUMAN BODY MODEL
±8KV IEC 1000-4-2 CONTACT DISCHARGE
s
OPERATE FROM A SINGLE 3.3V SUPPLY -
NO CHARGE PUMP REQUIRED
s
INTEROPERABLE WITH 5V LOGIC
s
1
µA LOW CURRENT SHUTDOWN MODE
MAX
s
GUARANTEED 12 Mbps DATA RATE
s
-7 TO 12 COMMON MODE INPUT VOLTAGE
RANGE
s
HALF DUPLEX VERSIONS AVAILABLE
s
INDUSTRY STANDARD 75176 PINOUT
s
CURRENT LIMITING AND THERMAL
SHUTDOWN FOR DRIVER OVERLOAD
PROTECTION
s
GUARANTEED HIGH RECEIVER OUTPUT
STATE FOR FLOATING INPUTS WITH NO
SIGNAL PRESENT
s
ALLOW UP TO 64 TRANSCEIVERS ON THE
BUS
DESCRIPTION
The ST3485E is ±15kV ESD protected, 3.3V low
power
transceiver
for
RS-485
and
RS-422
communications. The device contains one driver
and one receiver in half duplex configuration. The
ST3485E transmit and receive at guaranteed data
rate at least to 12Mbps.
All transmitter outputs and receiver inputs are
protected to ±15kV using Human Body Model.
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 ST3485E input has a true fail-safe feature
that guarantees a logic high output if both inputs
are open circuit, shorted together or in presence of
the termination with no signal on the bus.
ORDERING CODES
Type
Temperature
Range
Package
Comments
ST3485ECN
0 to 70 °C
DIP-8
50parts per tube / 40tube per box
ST3485EBN
-40 to 85 °C
DIP-8
50parts per tube / 40tube per box
ST3485ECD
0 to 70 °C
SO-8 (Tube)
100parts per tube / 20tube per box
ST3485EBD
-40 to 85 °C
SO-8 (Tube)
100parts per tube / 20tube per box
ST3485ECDR
0 to 70 °C
SO-8 (Tape & Reel)
2500 parts per reel
ST3485EBDR
-40 to 85 °C
SO-8 (Tape & Reel)
2500 parts per reel
ST3485E
3.3V POWERED, 15KV ESD PROTECTED, TRASMIT AT
UP TO 12MBPS TRUE RS-485/RS-422 TRANSCEIVER
DIP
SOP


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