®
SP3481/SP3485
+3.3V Low Power Half-Duplex RS-485
Transceivers with 10Mbps Data Rate
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RS-485 and RS-422 Transceivers
Operates from a single +3.3V supply
Interoperable with +5.0V logic
Driver/Receiver Enable
Low Power Shutdown Mode (SP3481)
-7V to +12V Common-Mode Input
Voltage Range
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Allows up to 32 transceivers on
the serial bus
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Compatibility with the industry
standard 75176 pinout
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Driver Output Short-Circuit Protection
DESCRIPTION
The
SP3481
and the
SP3485
are a family of +3.3V low power half-duplex transceivers that
meet the specifications of the RS-485 and RS-422 serial protocols. These devices are pin-to-
pin compatible with the Sipex SP481, SP483, and SP485 devices as well as popular industry
standards. The
SP3481
and the
SP3485
feature Sipex's BiCMOS process, allowing low power
operation without sacrificing performance. The
SP3481
and
SP3485
meet the electrical
specifications of RS-485 and RS-422 serial protocols up to 10Mbps under load. The
SP3481
is equipped with a low power Shutdown mode.
RO 1
RE 2
DE 3
DI 4
R
8 Vcc
7 B
6 A
D
SP3481 and SP3485
5 GND
10/15/02
SP3481/3485 Low Power Half-Duplex RS485 Transceivers
© Copyright 2002 Sipex Corporation
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SIPEX [ SIPEX CORPORATION ]
