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參數(shù)資料
| 型號(hào)： | SP1490ECN-L |
| 廠商： | Exar Corporation |
| 文件頁數(shù)： | 2/8頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC TXRX RS485 FULL DUPLEX 8NSOIC |
| 標(biāo)準(zhǔn)包裝： | 98 |
| 類型： | 收發(fā)器 |
| 驅(qū)動(dòng)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： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-SOICN |
| 包裝： | 管件 |
| 其它名稱： | 1016-1493-5 SP1490ECN-L-ND |
2
Exar Corporation 48720 Kato Road, Fremont CA, 94538 50-668-707 www.exar.com
SP490_SP49E_0_05243
aBSoLutEMaXiMuMratinGS
Thesearestressratingsonlyandfunctionaloperationofthedeviceat
theseratingsoranyotherabovethoseindicatedintheoperationsections
ofthespecificationsbelowisnotimplied.Exposuretoabsolutemaximum
ratingconditionsforextendedperiodsoftimemayaffectreliability.
V
CC...................................................................................................+7V
InputVoltages
Drivers................................................-0.5Vto(V
CC+0.5V)
Receivers..................................................................±14V
OutputVoltages
Drivers......................................................................±14V
Receivers...........................................-0.5Vto(V
CC+0.5V)
StorageTemperature....................................................-65Cto+150
PowerDissipation.....................................................................1000mW
T
MINtoTMAXandVCC=5V±5%unlessotherwisenoted.
ParaMEtErS
Min.
tYP.
MaX. unitS conditionS
SP1490E/1491EdrivEr
DC Characteristics
DifferentialOutputVoltage
3.5
V
CC
Volts
Unloaded;R=∞ ;seefigure1
DifferentialOutputVoltage
2
V
CC
Volts
WithLoad;R=50;(RS422);
seefigure1
DifferentialOutputVoltage
1.5
V
CC
Volts
WithLoad;R=27;(RS485);see
figure1
ChangeinMagnitudeofDriver
DifferentialOutputVoltagefor
ComplimentaryStates
0.2
Volts
R=27orR=50;seefigure1
DriverCommon-Mode
OutputVoltage
3
Volts
R=27orR=50;seefigure1
InputHighVoltage
2.0
Volts
AppliestoD
InputLowVoltage
0.8
Volts
AppliestoD
InputCurrent
±10 μA
AppliestoD
DriverShort-CircuitCurrent
V
OUT=HIGH
±250 mA
-7V≤V
O≤+12V
V
OUT=LOW
±250 mA
-7V≤V
O≤+12V
SP1490E/1491EdrivEr
accharacteristics
MaximumDataRate
20
Mbps
DriverInputtoOutput
30
40
ns
t
R/F;RDIFF=54,CL1 = CL2=100pF;
seefigures3and6
DriverInputtoOutput
30
40
ns
t
R/F;RDIFF=54,CL1 = CL2=100pF;
seefigures3and6
DriverSkew
5
ns
seefigures3and6,
t
R/F = | tPLH - tPHL |
DriverRiseorFallTime8
20
ns
From10%to90%;R
DIFF=54,
SP1491Eonly
C
L1 = CL2=100pF;seefigures3and6
t
R/F
DriverEnabletoOutputHigh
20
70
ns
C
L1 = CL2=100pF;seefigures
4and7;S
2closed
DriverEnabletoOutputLow
40
70
ns
C
L1 = CL2=100pF;seefigures
4and7;S
closed
DriverDisableTimefromLow
40
70
ns
C
L1 = CL2=100pF;seefigures
4and7;S
closed
DriverDisableTimefromHigh
40
70
ns
C
L1 = CL2=100pF;seefigures
4and7;S
2closed
ELECTRICAL CHARACTERISTICS
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SP1490ECN-L/TR | 功能描述:RS-485接口IC 20MBPS FULL-DUPLEX RS485 W/+/-15KV ESD RoHS:否 制造商:Texas Instruments 數(shù)據(jù)速率:250 Kbps 工作電源電壓:3.3 V 電源電流:750 uA 工作溫度范圍:- 40 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| SP1490ECNTR | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Full Duplex RS-485 Transceivers |
| SP1490ECP | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Full Duplex RS-485 Transceivers |
| SP1490ECP-L | 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述: |
| SP1490EEN | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Full Duplex RS-485 Transceivers |
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