参数资料
| 型号： | SP491ES-L |
| 厂商： | Exar Corporation |
| 文件页数： | 4/10页 |
| 文件大小： | 0K |
| 描述： | IC TXRX RS485 FULL DUPLEX 14PDIP |
| 产品变化通告： | Interface Product Discontinuation 10/May/2011 |
| 标准包装： | 25 |
| 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： | 通孔 |
| 封装/外壳： | 14-DIP（0.300"，7.62mm） |
| 供应商设备封装： | 14-PDIP |
| 包装： | 管件 |
3
Exar Corporation 48720 Kato Road, Fremont CA, 94538 (50)668-707 www.exar.com
SP490,49_0_0627
T
MINtoTMAXandVCC=5V±5%unlessotherwisenoted.
PARAMETERS
MIN.
TYP.
MAX. UNITS CONDITIONS
SP490RECEIVER
ACCharacteristics
Maximum Data Rate
5
Mbps
Receiver Input to Output
45
50
ns
t
PLH; RDIFF = 54,
C
L = CL2 = 00pF; Figures 3 & 8
Receiver Input to Output
45
50
ns
t
PHL; RDIFF = 54,
C
L = CL2
=
00pF; Figures 3 & 8
Diff. Receiver Skew It
PLH-tPHLI
3
ns
R
DIFF = 54; CL = CL2 = 00pF;
Figures 3 & 8
POWERREQUIREMENTS
Supply Voltage
+4.75
+5.25 Volts
Supply Current
900
A
ENVIRONMENTALAND
MECHANICAL
Operating Temperature
Commercial (C_)
0
+70
°C
Industrial (E_)
-40
+85
°C
Storage Temperature
-65
+50 °C
Package
Plastic DIP (_S)
NSOIC (_N)
Figure 3. Driver/Receiver Timing Test Circuit
Figure 4. Driver Timing Test Load #2 Circuit
Figure . Driver DC Test Load Circuit
Figure 2. Receiver Timing Test Load Circuit
ELECTRICALCHARACTERISTICS
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