SP481E Datasheet, PDF (1/11 Pages) Sipex Corporation – Enhanced Low Power Half-Duplex RS-485 Transceivers

®
SP481E/SP485E
Enhanced Low Power Half-Duplex
RS-485 Transceivers
■ +5V Only
■ Low Power BiCMOS
■ Driver/Receiver Enable for Multi-Drop
configurations
■ Low Power Shutdown Mode
(SP481E)
■ Enhanced ESD Specifications:
+15KV Human Body Model
+15KV IEC1000-4-2 Air Discharge
+8KV IEC1000-4-2 Contact Discharge
DESCRIPTION
The SP481E and the SP485E are a family of half-duplex transceivers that meet the
specifications of RS-485 and RS-422 serial protocols with enhanced ESD performance. The
ESD tolerance has been improved on these devices to over +15KV for both Human Body
Model and IEC1000-4-2 Air Discharge Method. These devices are pin-to-pin compatible with
Sipex's SP481 and SP485 devices as well as popular industry standards. As with the original
versions, the SP481E and the SP485E feature Sipex's BiCMOS design allowing low power
operation without sacrificing performance. The SP481E and SP485E meet the requirements
of the RS-485 and RS-422 protocols up to 10Mbps under load. The SP481E is equipped with
a low power Shutdown mode.
RO 1
R
RE 2
DE 3
DI 4
D
8 Vcc
7B
6A
5 GND
SP481E and SP485E
Rev. 5/16/03
SP481E Low Power Half-Duplex RS485 Transceivers
1
© Copyright 2003 Sipex Corporation