SP3486 Datasheet, PDF (1/9 Pages) Sipex Corporation – +3.3V Low Power Quad RS-485/RS-422 Line Drivers

®
SP3486 and SP3487
+3.3V Low Power Quad
RS-485/RS-422 Line Drivers
■ RS-485 or RS-422 Quad Differential
Line Drivers
■ Operates from a single +3.3V supply
■ Interoperable with +5.0V logic
■ Tri-state Output Control
■ -7V to +12V Common-Mode Input
Voltage Range
■ Common Driver Enable Control (SP3486)
■ Independent Driver Enable Controls for
each pair of Drivers (SP3487)
■ Compatibility with LTC486
and SN75172 (SP3486)
■ Compatibility with LTC487
and SN75174 (SP3487)
DESCRIPTION
The SP3486 and the SP3487 are +3.3V low power quad drivers that meet the specifications
of the RS-485 and RS-422 serial protocols. These devices are pin-to-pin compatible with
Sipex's SP486 and SP487 devices as well as popular industry standards. The SP3486 and
SP3487 feature Sipex's BiCMOS process allowing low power operation without sacrificing
performance. The SP3486 and SP3487 meet the electrical specifications of RS-485 and
RS-422 serial protocols up to 10Mbps under load. The SP3486 features a common driver
enable control. The SP3487 provides independent driver enable controls for each pair of
drivers. Both devices feature tri-state outputs and a -7V to +12V common-mode input voltage
range.
DI1 1
1
DO1A 2
DO1B 3
EN 4
DO2B 5
DO2A 6
2
DI2 7
GND 8
SP3486 ^{16 V}CC
15 DI4
4
14 DO4A
13 DO4B
12 EN
11 DO3B
10 DO3A
3
9 DI3
DI1 1
1
DO1A 2
DO1B 3
EN1/EN2 4
DO2B 5
DO2A 6
2
DI2 7
GND 8
SP3487 ^{16 V}CC
15 DI4
4
14 DO4A
13 DO4B
12 EN3/EN4
11 DO3B
10 DO3A
3
9 DI3
10/15/02
SP3486/3487 Low Power Quad RS485/422 Line Drivers
1
© Copyright 2002 Sipex Corporation