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參數(shù)資料
| 型號(hào)： | SP1491EEP |
| 元件分類： | RS-485 |
| 英文描述： | Full Duplex RS-485 Transceivers |
| 中文描述： | 全雙工RS - 485接口收發(fā)器 |
| 文件頁(yè)數(shù)： | 1/10頁(yè) |
| 文件大?。?/td> | 73K |
| 代理商： | SP1491EEP |
1
Date: 5/18/04
SP1490E/1491E Full Duplex RS-485 Transceivers
Copyright 2004 Sipex Corporation
Preliminary SP1490E/SP1491E
Full Duplex RS-485 Transceivers
■
+5V Only
■
Low Power BiCMOS
■
Driver/Receiver Enable (
SP1491E
)
■
RS-485 and RS-422 Drivers/Receivers
■
Pin Compatible with SN75179
(SP1490E)
■
Pin Compatible with SN75180
(SP1491E)
■
Improved ESD Specifications
±
15kV Human Body Model
±
15kV IEC1000-4-2 Air Discharge
±
8kV IEC1000-4-2 Contact Discharge
SP1490E
SP1491E
1
2
3
4
5
6
7
8
VCC
SP1490E
8 Pin - nSOIC
DI
Y
RO
B
A
Z
GND
DESCRIPTION
FEATURES
APPLICATIONS
■
Industial Networks
■
Telecom
■
Motor Control
■
HVAC/ Building Control
The
SP1490E
is a low power differential line driver/receiver meeting RS-485 and RS-422
standards up to 20Mbps. The
SP1491E
is identical to the
SP1490E
with the addition of driver
and receiver tri-state enable lines. Both products feature
±
200mV receiver input sensitivity,
over wide common mode range. The
SP1490E
is available in 8-pin plastic DIP and 8-pin
NSOIC packages for operation over the commercial and industrial temperature ranges. The
SP1491E
is available in 14-pin DIP and 14-pin NSOIC packages for operation over the
commercial and industrial temperature ranges.
BLOCK DIAGRAM
1
2
3
4
5
6
7
8
R
D
Vcc
GND
RO
DI
A
B
Z
Y
6
7
1
2
3
4
5
8
Vcc
NC
GND
GND
RO
DI
A
B
Z
Y
R
D
9
10
11
12
13
14
NC
REB
DE
NC
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|---|---|
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