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SP486E/487EDS/06 SP486E/487E Enhanced Quad RS-485/RS-422 Line Drivers © Copyright 2000 Sipex Corporation
DESCRIPTION…
The SP486E and SP487E are low-power quad differential line drivers 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 superior drop-in replace-
ments to Sipex's SP486 and SP487 devices as well as popular industry standards. As with
the original versions, the SP486E features a common driver enable control and the SP487E
provides independent driver enable controls for each pair of drivers. Both feature wide
common-mode input ranges. Both are available in 16-pin plastic DIP and SOIC packages.
■ RS-485 or RS-422 Applications
■ Quad Differential Line Drivers
■ Driver Output Disable
■ –7V to +12V Common Mode Output
Range
■ 100µA Supply Current
■ Single +5V Supply Operation
■ Superior Drop-in Replacement for
SN75172, SN75174, LTC486, and
LTC487
■ Improved ESD Specifications:
+15kV Human Body Model
+15kV IEC1000-4-2 Air Discharge
+8kV IEC1000-4-2 Contact Discharge
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2
3
4
SP487E
DI
1
DO
1
A
DO
1
B
EN
1
/EN
2
DO
2
B
DO
2
A
DI
2
GND
V
CC
DI
4
DO
4
A
DO
4
B
EN
3
/EN
4
DO
3
B
DO
3
A
DI
3
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
1
2
3
4
SP486E
DI
1
DO
1
A
DO
1
B
EN
DO
2
B
DO
2
A
DI
2
GND
V
CC
DI
4
DO
4
A
DO
4
B
EN
DO
3
B
DO
3
A
DI
3
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
SP486E and SP487E
Enhanced Quad RS-485/RS-422 Line Drivers
®
