SP1481E Datasheet, PDF (1/11 Pages) Sipex Corporation – ±15kV Enhanced Low Power Half-Duplex RS-485 Transceivers

®
PRELIMINARY
SP1481E
±15kV Enhanced Low Power Half-Duplex
RS-485 Transceivers
■ +5V supply
■ Low Power BiCMOS
■ Driver/Receiver Enable for Multi-Drop
configurations
■ Low Power Shutdown Mode (1µA
Typical)
■ Available in 8 Pin NSOIC or PDIP
packages (Standard 75176 pinout)
■ Enhanced ESD Specifications:
+15KV Human Body Model
+15KV IEC1000-4-2 Air Discharge
+8KV IEC1000-4-2 Contact Discharge
RO 1
RE 2
DE ₃
DI 4
SP1481E
8 Pin - nSOIC
8 ^VCC
7B
6A
5 GND
DESCRIPTION
The SP1481E is a half-duplex transceiver that meets the specifications of RS-485 and RS-
422 serial protocols with enhanced ESD performance. The ESD tolerance has been improved
on this device to over +15KV for both Human Body Model and IEC1000-4-2 Air Discharge
Method. This device is pin-to-pin compatible with Sipex's SP485 and SP481 devices as well
as popular industry standards. As with the original version, the SP1481E features Sipex's
BiCMOS design allowing low power operation without sacrificing performance. The SP1481E
meets the requirements of the RS-485 and RS-422 protocols up to 20Mbps under load.
BLOCK DIAGRAM
RO 1
R
RE 2
DE 3
DI 4
D
SP1481E
8 Vcc
7B
6A
5 GND
Rev:B Date: 02/26/04
SP1481E Low Power Half-Duplex RS485 Transceivers
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© Copyright 2004 Sipex Corporation