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PDF SP483E Data sheet ( Hoja de datos )
| Número de pieza | SP483E | |
| Descripción | Enhanced Low EMI Half-Duplex RS-485 Transceiver | |
| Fabricantes | SIPEX | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de SP483E (archivo pdf) en la parte inferior de esta página. Total 11 Páginas | ||
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® SP483E
Enhanced Low EMI Half-Duplex
RS-485 Transceiver
s +5V Only
s Low Power BiCMOS
s Driver/Receiver Enable for Multi-Drop
configurations
s Enhanced ESD Specifications:
+15KV Human Body Model
+15KV IEC1000-4-2 Air Discharge
+8KV IEC1000-4-2 Contact Discharge
s Low EMI Transceiver limited to 250kbps
DESCRIPTION
The SP483E is a half-duplex transceiver that meets the specifications of RS-485 and RS-422
serial protocols with enhanced ESD performance. The ESD tolerance has been improved on
this device to over ±15kV for both Human Body Model and IEC1000-4-2 Air Discharge
Method. This device is pin-to-pin compatible withSipex's SP483 device as well as popular
industry standards. As with the original version, the SP483E features Sipex's BiCMOS
design allowing low power operation without sacrificing performance. TheSP483E meet the
requirements of the RS-485 and RS-422 protocols up to 250kbps under load. TheSP483E
is internally slew rate limited to reduce EMI and can meet the requirements of RS-485 and
RS-422 up to 250kbps. The SP483E is also equipped with a low power Shutdown mode.
RO 1
RE 2
DE 3
DI 4
R
D
SP483E
8 Vcc
7B
6A
5 GND
SP483EDS/05
SP483E Low EMI Half-Duplex RS485 Transceiver
1
© Copyright 2000 Sipex Corporation
http://www.Datasheet4U.com
1 page  
INPUTS
OUTPUTS
LINE
RE DE DI CONDITION B A
X 1 1 No Fault
01
X 1 0 No Fault
10
X0X
X
ZZ
X 1 X Fault
ZZ
Table 1. Transmit Function Truth Table
INPUTS
RE DE
00
00
00
10
OUTPUTS
A-B
R
+0.2V
1
-0.2V
0
Inputs Open
1
XZ
Table 2. Receive Function Truth Table
+3V
DE
0V
5V
A, B
VOL
VOH
A, B
0V
f = 100kHz; tR < 10ns; tF < 10ns
1.5V
tZL
2.3V Output normally LOW
1.5V
tLZ
0.5V
2.3V Output normally HIGH
tZH
0.5V
tHZ
Figure 6. Driver Enable and Disable Times
V0D2+
A–B
V0D2–
VOH
R
VOL
tPHL
tSKEW = | tPHL - tPLH |
Figure 7. Receiver Propagation Delays
0V
INPUT
0V
1.5V
OUTPUT
tPLH
f = 100kHz; tR < 10ns; tF < 10ns
1.5V
+3V
RE
0V
5V
R
VIL
VIH
R
0V
f = 100kHz; tR < 10ns; tF < 10ns
1.5V
tZL
1.5V
tLZ
1.5V Output normally LOW
0.5V
1.5V Output normally HIGH
tZH
0.5V
tHZ
Figure 8. Receiver Enable and Disable Times
SP483EDS/05
SP483E Low EMI Half-Duplex RS485 Transceiver
5
© Copyright 2000 Sipex Corporation
5 Page 
ORDERING INFORMATION
Model
Temperature Range
Package
SP483ECN ....................................................... 0˚C to +70˚C ............................................... 8-pin Narrow SOIC
SP483ECP ........................................................ 0˚C to +70˚C ................................................... 8-pin Plastic DIP
SP483EEN ...................................................... .-40˚C to +85˚C ............................................. 8-pin Narrow SOIC
SP483EEP ...................................................... -40˚C to +85˚C ................................................. 8-pin Plastic DIP
Please consult the factory for pricing and availability on a Tape-On-Reel option.
Corporation
SIGNAL PROCESSING EXCELLENCE
Sipex Corporation
Headquarters and
Sales Office
22 Linnell Circle
Billerica, MA 01821
TEL: (978) 667-8700
FAX: (978) 670-9001
e-mail: [email protected]
Sales Office
233 South Hillview Drive
Milpitas, CA 95035
TEL: (408) 934-7500
FAX: (408) 935-7600
Sipex Corporation reserves the right to make changes to any products described herein. Sipex does not assume any liability arising out of the
application or use of any product or circuit described hereing; neither does it convey any license under its patent rights nor the rights of others.
SP483EDS/05
SP483E Low EMI Half-Duplex RS485 Transceiver
11
© Copyright 2000 Sipex Corporation
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet SP483E.PDF ] | |
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