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參數(shù)資料
| 型號： | SP1491ECN-L/TR |
| 廠商： | Exar Corporation |
| 文件頁數(shù)： | 3/8頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC TXRX RS485 FULL DUPLEX 14SOIC |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 類型： | 收發(fā)器 |
| 驅(qū)動器/接收器數(shù)： | 1/1 |
| 規(guī)程： | RS422，RS485 |
| 電源電壓： | 4.75 V ~ 5.25 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 14-SOIC（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 14-SOIC（窄型） |
| 包裝： | 帶卷 (TR) |
3
Exar Corporation 48720 Kato Road, Fremont CA, 94538 50-668-707 www.exar.com
SP490_SP49E_0_05243
SP1490E/1491ErEcEivEr
dccharacteristics
DifferentialInputThreshold
0.2
+0.2 Volts
-7V≤V
CM≤12V
InputHysteresis
70
mV
V
CM=0V
OutputVoltageHigh
3.5
Volts
I
O=-4mA,VID=+200mV
OutputVoltageLow
0.4
Volts
I
O=+4mA,VID=-200mV
InputResistance
12
15
k
-7V≤V
CM≤12V(1unitload)
InputCurrent(A,B);V
IN=12V
±1.0 mA
V
IN=12V
InputCurrent(A,B);V
IN=-7V
-0.8 mA
V
IN=-7V
Short-CircuitCurrent
85
mA
0V≤V
O≤VCC
ParaMEtErS
Min.
tYP.
MaX. unitS conditionS
SP1490E/1491ErEcEivEr
accharacteristics
MaximumDataRate
20
Mbps
ReceiverInputtoOutput
20
45
50
ns
t
PLH;RDIFF=54,
C
L1 = CL2 = 100pF;Figures3&8
CL1
15pF
RO
A
B
A
B
DI
DE
3V
CL2
RDIFF
500
CL
Output
Under
Test
S1
S2
VCC
Figure 3. Driver/Receiver Timing Test Circuit
Figure 4. Driver Timing Test Load #2 Circuit
A
B
R
VOD
VOC
1K
CRL
Receiver
Output
S1
S2
Test Point
VCC
Figure 1. Driver DC Test Load Circuit
Figure 2. Receiver Timing Test Load Circuit
ReceiverInputtoOutput
20
45
50
ns
t
PHL;RDIFF=54,
C
L1 = CL2
=
100pF;Figures3&8
Diff.ReceiverSkewIt
PLH-tPHLI
5
10
ns
R
DIFF=54;CL1= CL2=100pF;
ReceiverTplh/Tphl
40
70
ns
PoWErrEQuirEMEntS
SupplyVoltage
+4.75
+5.25 Volts
SupplyCurrent
900
μA
EnvironMEntaLand
MEchanicaL
OperatingTemperature
Commercial(_C_)
0
+70 °C
Industrial(_E_)
-40
+85 °C
StorageTemperature
-65
+150 °C
SPEcificationS(continued)
T
MINtoTMAXandVCC=5V±5%unlessotherwisenoted.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SP1491ECNTR | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Full Duplex RS-485 Transceivers |
| SP1491ECP | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Full Duplex RS-485 Transceivers |
| SP1491ECP-L | 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述: |
| SP1491EEN | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Full Duplex RS-485 Transceivers |
| SP1491EEN/TR | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Full Duplex RS-485 Transceivers |
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