ST3485E
3.3V Powered, 15KV ESD protected,
Up to 12Mbps RS-485/RS-422 transceiver
General features
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ESD protection
鈥?鹵15kV human body model
鈥?鹵8kV IEC 1000-4-2 contact discharge
Operate from a single 3.3V supply - no charge
pump required
Interoperable with 5V logic
1碌A(chǔ) low current shutdown mode max
Guaranteed 12Mbps data rate
-7 to 12 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
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 鹵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.
DIP-8
SO-8
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Description
The ST3485E is 鹵15kV ESD protected, 3.3V low
power transceiver for RS-485 and RS-422
communications. The device contains one driver
Order code
Part number
ST3485ECN
ST3485EBN
ST3485ECDR
ST3485EBDR
April 2006
Temperature range
0 to 70 擄C
-40 to 85 擄C
0 to 70 擄C
-40 to 85 擄C
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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www.st.com
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