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SP481REP Datasheet(PDF) 3 Page - Sipex Corporation

Part # SP481REP
Description  1/10th Unit Load RS-485 Transceiver
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Manufacturer  SIPEX [Sipex Corporation]
Direct Link  http://www.sipex.com
Logo SIPEX - Sipex Corporation

SP481REP Datasheet(HTML) 3 Page - Sipex Corporation

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Date: 6/21/04
SP485R RS-485 Serial Transceiver
© Copyright 2004 Sipex Corporation
3
RECEIVER INPUT GRAPH
Typically 25°C @ Vcc = +5V unless otherwise noted.
MIN.
TYP.
MAX.
UNITS
CONDITIONS
AC Characteristics
Maximum Data Rate
1
Mbps
Propagation Delay
See Figures 3 and 7
t
PHL
1200
ns
R
DIFF=54Ω, CL1=CL2=100pF
t
PLH
1200
ns
R
DIFF=54Ω, CL1=CL2=100pF
Differential Receiver Skew
60
ns
| t
PLH – tPHL |; RDIFF=54Ω,
C
L1=CL2=100pF, see Figures 3 and 7
SHUTDOWN TIMING (SP481R)
Time to Shutdown
50
600
ns
RE = V
CC, DE = 0V
RS-485 Driver
Enable Time
See Figures 4 and 6
Enable to Low
40
500
ns
C
L=15pF, S1 Closed
Enable to High
40
500
ns
C
L=15pF, S2 Closed
Disable Time
See Figures 4 and 6
Disable From Low
40
500
ns
C
L=15pF, S1 Closed
Disable From High
40
500
ns
C
L=15pF, S2 Closed
RS-485 Receiver
Enable Time
See Figures 2 and 8
Enable to Low
40
500
ns
C
L=15pF, S1 Closed
Enable to High
40
500
ns
C
L=15pF, S2 Closed
Disable Time
See Figures 2 and 8
Disable From Low
40
500
ns
C
L=15pF, S1 Closed
Disable From High
40
500
ns
C
L=15pF, S2 Closed
POWER REQUIREMENTS
Supply Voltage V
CC
+4.75
+5.25
Volts
Supply Current I
CC
No Load
300
500
µA
RE = V
CC or 0V, DE = 0V
No Load
500
900
µA
RE = V
CC or 0V, DE = VCC
Supply Current in Shutdown
0.5
10
µA
RE = V
CC, DE = OV
ENVIRONMENTAL
Operating Temperature
Commercial (..C..)
0
+70
°C
Industrial (..E..)
–40
+85
°C
Storage Temperature
–65
+150
°C
ELECTRICAL CHARACTERISTICS
-7V
-3V
+6V
+12V
-60µA
+100µA
1/10 Unit Load
Maximum Input Current
versus voltage.
(Shaded region)
SP485R Reciever
-7V
-3V
+6V
+12V
-0.6 mA
+1.0mA
1 Unit Load
Maximum Input Current
versus voltage.
(Shaded region)
Standard SP485R Reciever


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