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ST3485EIDT 数据手册 - ST Microelectronics（意法半导体）
制造商:
ST Microelectronics（意法半导体）
分类:
RS485控制器
封装:
SO-8
描述:
RS422/RS485收发器, 1驱动器, 1接收器, 3V至3.6V电源, SOIC-8
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ST3485EIDT数据手册
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August 2016
DocID9102 Rev 10
1/22
This is information on a product in full production.
www.st.com
ST3485EB, ST3485EC,
ST3485EI, ST3485EIY
3.3 V powered, 15 kV ESD protected, up to 12 Mbps RS-485/
RS-422 transceiver
Datasheet - production data
Features
ESD protection
±15 kV IEC 61000-4-2 air discharge
±8 kV IEC 61000-4-2 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
Available in SO8 package
Automotive grade (ST3485EIY)
Description
The ST3485EB/EC/EI/EIY device 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 device transmits and receives at a
guaranteed data rate of at least 12 Mbps.
All transmitter outputs and receiver inputs are
protected to ±15 kV IEC 61000-4-2 air discharge.
The 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.
Table 1: Device summary
Order code
Temp range
Package
Packaging
ST3485ECDR
0 to 70 °C
SO8
(tape
and reel)
2500 parts
per reel
ST3485EBDR
-40 to 85 °C
ST3485EIDT
-40 to 125 °C
ST3485EIYDT
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