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SP486 数据表(PDF) 4 Page - Sipex Corporation

部件名 SP486
功能描述  Quad RS-485/RS-422 Line Drivers
PDF  7 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  SIPEX [Sipex Corporation]
网页  http://www.sipex.com
标志 SIPEX - Sipex Corporation

SP486 数据表(HTML) 4 Page - Sipex Corporation

  SP486 Datasheet HTML 1Page - Sipex Corporation SP486 Datasheet HTML 2Page - Sipex Corporation SP486 Datasheet HTML 3Page - Sipex Corporation SP486 Datasheet HTML 4Page - Sipex Corporation SP486 Datasheet HTML 5Page - Sipex Corporation SP486 Datasheet HTML 6Page - Sipex Corporation SP486 Datasheet HTML 7Page - Sipex Corporation  
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SP486/487
Quad RS-485/RS-422 Line Drivers
© Copyright 2000 Sipex Corporation
4
PINOUT — SP487
1
2
3
4
SP487
DI1
DO1A
DO1B
EN1/EN2
DO2B
DO2A
DI2
GND
VCC
DI4
DO4A
DO4B
EN3/EN4
DO3B
DO3A
DI3
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
Pin 16 — Supply Voltage V
CC — 4.75V ≤ VCC ≤
5.25V.
SP487 PINOUT
Pin 1 — DI
1 — Driver 1 Input — If Driver 1 output is
enabled,logic0onDI
1 forces driver output DO1A low
and DO
1B high. A logic 1 on DI1 with Driver 1 output
enabled forces driver DO
1A high and DO1B low.
Pin 2 — DO
1A — Driver 1 output A.
Pin 3 — DO
1B — Driver 1 output B.
Pin 4 — EN
1/EN2 — Driver 1 and 2 Output Enable.
Please refer to SP487 Truth Table (2).
Pin 5 — DO
2B — Driver 2 output B.
Pin 6 — DO
2A — Driver 2 output A.
Pin 7 — DI
2 — Driver 2 Input — If Driver 2 output is
enabled,logic0onDI
2 forces driver output DO2A low
and DO
2B high. A logic 1 on DI2 with Driver 2 output
enabled forces driver DO
2A high and DO2B low.
Pin 8 — GND — Digital Ground.
Pin 9 — DI
3 — Driver 3 Input — If Driver 3 output is
enabled,logic0onDI
3 forces driver output DO3A low
and DO
3B high. A logic 1 on DI3 with Driver 3 output
enabled forces driver DO
3A high and DO3B low.
Pin 10 — DO
3A — Driver 3 output A.
INPUT
ENABLES
OUTPUTS
DI
EN
EN
OUTA
OUTB
HH
X
H
L
LH
X
L
H
HX
L
H
L
LX
L
L
H
X
L
H
Hi–Z
Hi–Z
Table 1. SP486 Truth Table
INPUT
ENABLES
OUTPUTS
DI
EN1/EN2 or EN3/EN4
OUTA
OUTB
HHH
L
LH
L
H
X
L
Hi–Z
Hi–Z
Table 2. SP487 Truth Table
Pin 11 — DO
3B — Driver 3 output B.
Pin 12 — EN
3/EN4 — Driver 3 and 4 Output Enable.
Please refer to SP487 Truth Table (2).
Pin 13 — DO
4B — Driver 4 output B.
Pin 14 — DO
4A — Driver 4 output A.
Pin 15 — DI
4 — Driver 4 Input — If Driver 4 output
is enabled, logic 0 on DI
4 forces driver output DO4A
low and DO
4B high. A logic 1 on DI4 with Driver 3
output enabled forces driver DO
4A high and DO4B
low.
Pin 16 — Supply Voltage V
CC — 4.75V ≤ VCC ≤
5.25V.
FEATURES…
The SP486 and SP487 are low–power quad differ-
ential line drivers meeting RS-485 and RS-422
standards. The SP486 features active high and
active low common driver enable controls; the
SP487 provides independent, active high driver
enable controls for each pair of drivers. The driver
outputs are short–circuit limited to 200mA. Data
rates up to 10Mbps are supported. Both are avail-
able in 16–pin plastic DIP and SOIC packages.



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