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| 型号： | SP485ECN-L/TR |
| 厂商： | Exar Corporation |
| 文件页数： | 3/10页 |
| 文件大小： | 0K |
| 描述： | IC TXRX RS485 HALF DUPLEX 8NSOIC |
| 标准包装： | 2,500 |
| 类型： | 收发器 |
| 驱动器/接收器数： | 1/1 |
| 规程： | RS485 |
| 电源电压： | 5V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOICN |
| 包装： | 带卷 (TR) |
| 其它名称： | SP485ECN-L/TR-ND |
2
Exar Corporation 48720 Kato Road, Fremont CA, 94538 50-668-707 www.exar.com
SP48E,485E_04_05243
ABSOLUTE MAXIMUM RATINGS
These are stress ratings only and functional operation
of the device at these ratings or any other above those
indicated in the operation sections of the specifications
below is not implied. Exposure to absolute maximum
rating conditions for extended periods of time may
affect reliability.
V
CC.......................................................................+7V
Input Voltages
Logic.........................-0.3V to (Vcc + 0.5V)
Drivers......................-0.3V to (Vcc + 0.5V)
Receivers.........................................+/-15V
ELECTRICAL CHARACTERISTICS
T
MIN to TMAX and VCC = +5.0V +/-5% unless otherwise noted.
PARAMETERS
MIN.
TYP.
MAX.
UNITS CONDITIONS
SP481E/SP485E DRIVER
DC Characteristics
Differential Output Voltage
GND
Vcc
Volts
Unloaded; R = ∞ ; see Figure 1
Differential Output Voltage
2
Vcc
Volts
With Load; R = 50 (RS-422); see
Figure 1
Differential Output Voltage
.5
Vcc
Volts
With Load; R = 27 (RS-485); see
Figure 1
Change in Magnitude of Driver
Differential Output Voltage for
Complimentary states
0.2
Volts
R = 27 or R = 50; see Figure 1
Driver Common Mode Output
Voltage
3
Volts
R = 27 or R = 50; see Figure 1
Input High Voltage
2.0
Volts
Applies to DE, DI, RE
Input Low Voltage
0.8
Volts
Applies to DE, DI, RE
Input Current
+/-0
A
Applies to DE, DI, RE
Driver Short Circuit Current
V
OUT = HIGH
+/-250
mA
-7V ≤ V
O ≤ +12V
V
OUT = LOW
+/-250
mA
-7V ≤ V
O ≤ +12V
SP481E/SP485E DRIVER
AC Characteristics
Max. Transmission Rate
0
Mbps
RE = 5V, DE = 5V; R
DIFF = 54,
C
L = CL2 = 00pF
Driver Input to Output, t
PLH
30
60
ns
See Figures 3 & 5, R
DIFF = 54,
C
L = CL2 = 00pF
Driver Input to Output, t
PLH
(SP485EMN ONLY)
30
80
ns
Driver Input to Output, t
PHL
30
60
ns
See Figures 3 & 5, R
DIFF = 54,
C
L = CL2 = 00pF
Driver Input to Output, t
PHL
(SP485EMN ONLY)
30
80
ns
Driver Skew
5
0
ns
see Figures 3 and 5,
t
SKEW = |tDPHL - tDPLH|
Driver Rise or Fall Time
5
40
ns
From 0%-90%; R
DIFF = 54
C
L = CL2 = 100pF; see Figures 3
and 6
Output Voltages
Logic.........................-0.3V to (Vcc + 0.5V)
Drivers.............................................+/-15V
Receivers..................-0.3V to (Vcc + 0.5V)
Storage Temperature.......................-65C to +150C
Power Dissipation
8-pin NSOIC...................................................550mW
(derate 6.60mW/C above +70C)
8-pin PDIP....................................................000mW
(derate .8mW/C above +70C)
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SP485ECP | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:Enhanced Low Power Half-Duplex RS-485 Transceivers |
| SP485ECP-L | 功能描述:RS-485接口IC RS485 10000 kbps temp 0C to 70C 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 |
| SP485EEN | 制造商:Exar 功能描述:Enhanced Low Power Half-Duplex RS-485 Transceivers 制造商:Other 功能描述:Enhanced Low Power Half-Duplex RS-485 Transceivers |
| SP485EEN-L | 功能描述:RS-485接口IC RS485 10000 kbps EMI temp -40C to 85C 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 |
| SP485EEN-L/TR | 功能描述:RS-485接口IC Low Pwr Half-Duplex RS-485 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 |
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