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SP488AET Datasheet

  • SP488AET

  • High Speed Quad RS-485/RS-422 Line Receivers

  • 7頁

  • SIPEX

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PRELIMINARY INFORMATION
廬
SP488A and SP489A
High Speed Quad
RS-485/RS-422 Line Receivers
s
High Speed Versions of
Sipex's
SP488 & SP489
s
30Mbps Transmission Rates
s
Quad Differential Line Receivers
s
RS-485 or RS-422 Applications
s
Tri鈥搒tate Output Control
s
30ns Typical Receiver Propagation
Delays
s
鈥?V to +12V Common Mode Input
Range
s
1mA Supply Current
s
Single +5V Supply Operation
s
Pin Compatible with SN75173,
SN75175, LTC488 and LTC489
DESCRIPTION鈥?/div>
The
SP488A
and
SP489A
are high speed quad differential line receivers capable of
meeting the RS-485 and RS-422 protocols while running at five times the normal
transmission rates. The
SP488A
and
SP489A
are enhanced versions of
Sipex's
SP488
and SP489 quad RS-485/RS-422 line receivers. The
SP488A
features a common
receiver enable control; the
SP489A
provides independent receiver enable controls for each
pair of receivers. Both feature tri鈥搒tate outputs and wide common鈥搈ode input range.
The receivers have a fail鈥搒afe feature which forces a logic 鈥?鈥?output when receiver inputs
are left floating. Both are available in 16鈥損in plastic DIP and SOIC packages.
RI
1
B
RI
1
A
RO
1
EN
RO
2
RI
2
A
RI
2
B
GND
1
2
3
4
5
6
7
8
SP488A
1
4
16
15
14
13
12
V
CC
RI
4
B
RI
4
A
RO
4
EN
RO
3
RI
3
A
RI
3
B
RI
1
B
RI
1
A
RO
1
EN
1
/EN
2
RO
2
RI
2
A
RI
2
B
GND
1
2
3
4
5
6
7
8
SP489A
1
4
16
15
14
13
12
V
CC
RI
4
B
RI
4
A
RO
4
EN
3
/EN
4
RO
3
RI
3
A
RI
3
B
2
3
11
10
9
2
3
11
10
9
SP488A/489ADS/07
SP488A/489A High Speed Quad RS-485/RS-422 Line Receivers
漏 Copyright 2000 Sipex Corporation
1

SP488AET相關(guān)型號PDF文件下載

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