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SP485REP-L Datasheet(PDF) 3 Page - Exar Corporation

Part # SP485REP-L
Description  1/10th Unit Load RS-485 Transceiver
PDF  9 Pages
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Manufacturer  EXAR [Exar Corporation]
Direct Link  http://www.exar.com
Logo EXAR - Exar Corporation

SP485REP-L Datasheet(HTML) 3 Page - Exar Corporation

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Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 50-668-707 • www.exar.com
SP485R_00_072309
PARAMETERS
MIN.
TYP.
MAX.
UNITS CONDITIONS
RS-485 RECEIVER DC Characteristics (continued)
Common Mode Range
-7.0
+2.0
Volts
Receiver Sensitivity
+/-0.2
Volts
-7V ≤ V
CM ≤ +12V
Input Impedance
20
50
kΩ
-7V ≤ V
CM ≤ +12V
RS-485 RECEIVER AC Characteristics
Maximum Data Rate

Mbps
Propagation Delay; t
PHL
200
ns
See Figures 4 & 8, R
DIFF = 54Ω,
C
L = CL2 = 00pF
Propagation Delay; t
PLH
200
ns
See Figures 4 & 8, R
DIFF = 54Ω,
C
L = CL2 = 00pF
Differential Receiver Skew
60
ns
See Figures 4 & 8, R
DIFF = 54Ω,
C
L = CL2 = 00pF,
t
SKEW = |tPHL - tPLH|
RS-485 DRIVER Enable / Disable Time
Driver Enable to Output Low
40
500
ns
C
L = 5pF, see Figures 5 and 7,
S
 closed
Driver Enable to Output High
40
500
ns
C
L = 5pF, see Figures 5 and 7,
S
2 closed
Driver Disable Time from Low
40
500
ns
C
L = 5pF, see Figures 5 and 7,
S
 closed
Driver Disable Time from High
40
500
ns
C
L = 5pF, see Figures 5 and 7,
S
2 closed
RS-485 RECEIVER Enable / Disable Time
Receiver Enable to Output Low
40
500
ns
C
L = 5pF, see Figures 3 and 9,
S
 closed
Receiver Enable to Output High
40
500
ns
C
L = 5pF, see Figures 3 and 9,
S
2 closed
Receiver Disable from Low
40
500
ns
C
L = 5pF, see Figures 3 and 9,
S
 closed
Receiver Disable from High
40
500
ns
C
L = 5pF, see Figures 3 and 9,
S
 closed
POWER REQUIREMENTS
Supply Voltage V
CC
+4.75
+5.25
Volts
Supply Current I
CC, No Load
300
500
µA
RE = Vcc or 0V, DE = 0V
Supply Current I
CC, No Load
500
900
µA
RE = Vcc or 0V, DE = Vcc
ENVIRONMENTAL
Operating Temperature
Commercial (..C..)
0
+70
ºC
Industrial (..E..)
-40
+85
ºC
Storage Temperature
-65
+50
ºC
ELECTRICAL CHARACTERISTICS
Typically 25ºC @ V
CC = +5V unless otherwise noted.



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