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参数资料
| 型号： | SP1491EEN-L |
| 厂商： | Exar Corporation |
| 文件页数： | 2/8页 |
| 文件大小： | 0K |
| 描述： | IC TXRX RS485 FULL DUPLEX 14SOIC |
| 标准包装： | 56 |
| 类型： | 收发器 |
| 驱动器/接收器数： | 1/1 |
| 规程： | RS422，RS485 |
| 电源电压： | 4.75 V ~ 5.25 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 14-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 14-SOIC（窄型） |
| 包装： | 管件 |
| 其它名称： | 1016-1004-5 |
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
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SP1491EEN-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 数据速率:250 Kbps 工作电源电压:3.3 V 电源电流:750 uA 工作温度范围:- 40 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| SP1491EENTR | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:Full Duplex RS-485 Transceivers |
| SP1491EEP | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:Full Duplex RS-485 Transceivers |
| SP1491ETR | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:Full Duplex RS-485 Transceivers |
| SP1-495-28529-000 | 制造商:TE CONNECTIVITY 功能描述: |
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