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SP1485ECN-L/TR 데이터시트(PDF) 3 Page - Exar Corporation

부품명 SP1485ECN-L/TR
상세설명  Enhanced Low Power Half-Duplex RS-485 Transceivers
PDF  10 Pages
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제조업체  EXAR [Exar Corporation]
홈페이지  http://www.exar.com
Logo EXAR - Exar Corporation

SP1485ECN-L/TR 데이터시트(HTML) 3 Page - Exar Corporation

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Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 50-668-707 • www.exar.com
SP48E-485E_00_06609
speciFicAtions (continued)
pArAMeters
Min.
tYp.
MAX.
Units
conditions
sp1481e/sp1485e receiver
dc characteristics
DifferentialInputThreshold
-0.2
+0.2
Volts
-7V≤V
CM≤+12V
DifferentialInputThreshold
-0.4
+0.4
Volts
-7V≤V
CM≤+12V
(SP1485EMNONLY)
InputHysteresis
20
mV
V
CM=0V
OutputVoltageHigh
3.5
Volts
I
O=-4mA,VID=+200mV
OutputVoltageLow
0.4
Volts
I
O=+4mA,VID=-200mV
Three-State(HighImpedance)
OutputCurrent
±1
µA
0.4V≤V
O≤2.4V;RE=5V
InputResistance
12
15
kΩ
-7V≤V
CM≤+12V
InputCurrent(A,B);V
IN=12V
+1.0
mA
DE=0V,V
CC=0Vor5.25V,VIN=12V
InputCurrent(A,B);V
IN=-7V
-0.8
mA
DE=0V,V
CC=0Vor5.25V,VIN=-7V
Short-CircuitCurrent7
95
mA
0V≤V
O≤VCC
sp1481e/sp1485e receiver
Ac characteristics
MaximumDataRate
20
Mbps
RE=0V,DE=0V
ReceiverInputtoOutput
25
70
ns
t
PLH;RDIFF=54Ω,
C
L1 = CL2 = 100pF;Figures3&7
ReceiverInputtoOutput
25
70
ns
t
PHL;RDIFF=54Ω,
C
L1 = CL2
=
100pF;Figures3&7
Diff.ReceiverSkewIt
PLH-tPHLI
5
10
ns
R
DIFF=54Ω;CL1= CL2=100pF;
Figures3&7
ReceiverEnableto
OutputLow
45
70
ns
C
RL=15pF;Figures2&8;Sclosed
ReceiverEnableto
OutputHigh
45
70
ns
C
RL=15pF;Figures2&8;S2closed
ReceiverDisablefromLow
45
70
ns
C
RL=15pF;Figures2&8;Sclosed
ReceiverDisablefromHigh45
70
ns
C
RL=15pF;Figures2&8;S2closed
sp1481e
shutdown timing
TimetoShutdown
50
200
600
ns
RE=5V,DE=0V
DriverEnablefromShutdown
toOutputHigh
40
100
ns
C
L=100pF;SeeFigures4&6;S2closed
DriverEnablefromShutdown
toOutputLow
40
100
ns
C
L=100pF;SeeFigures4&6;Sclosed
ReceiverEnablefrom
ShutdowntoOutputHigh
300
1000
ns
C
L=15pF;SeeFigures2&8;S2closed
ReceiverEnablefrom
ShutdowntoOutputLow
300
1000
ns
C
L=15pF;SeeFigures2&8;Sclosed
poWer reQUireMents
SupplyVoltage
+4.75
+5.25
Volts
SupplyCurrent
SP1481E/1485E
NoLoad
900
μA
RE,DI=0VorV
CC;DE=VCC
600
μA
RE=0V,DI=0Vor5V;DE=0V
SP48E
ShutdownMode
10
μA
DE=0V,RE=V
CC
environMentAL And MecHAnicAL
OperatingTemperature
Commercial(_C_)
0
+70
°C
Industrial(_E_)
-40
+85
°C
(_M_)
-40
+125
°C
StorageTemperature
-65
+150
°C
Package
NSOIC(_N)
T
MINto TMAXandVCC=5V±5%unlessotherwisenoted



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