ST3485E_06 Datasheet, PDF (1/22 Pages) STMicroelectronics – 3.3V Powered, 15KV ESD protected, Up to 12Mbps RS-485/RS-422 transceiver

ST3485E
3.3V Powered, 15KV ESD protected,
Up to 12Mbps RS-485/RS-422 transceiver
General features
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 1µA low current shutdown mode max
s Guaranteed 12Mbps 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
DIP-8
SO-8
and one receiver in half duplex configuration. The
ST3485E transmits and receives at a guaranteed
data rate of at least 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 places the driver
outputs into a high-impedance state.
Order code
Part number
ST3485ECN
ST3485EBN
ST3485ECDR
ST3485EBDR
Temperature range
0 to 70 °C
-40 to 85 °C
0 to 70 °C
-40 to 85 °C
April 2006
Package
DIP-8
DIP-8
SO-8 (Tape & Reel)
SO-8 (Tape & Reel)
Rev 2
Comments
50parts per tube / 40tube per box
50parts per tube / 40tube per box
2500 parts per reel
2500 parts per reel
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