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参数资料
| 型号： | LMS485IM |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 通用总线功能 |
| 英文描述： | 5V Low Power RS-485 / RS-422 Differential Bus |
| 中文描述： | LINE TRANSCEIVER, PDSO8 |
| 封装： | SOIC-8 |
| 文件页数： | 4/13页 |
| 文件大小： | 249K |
| 代理商： | LMS485IM |
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
(Note 1)
Supply Voltage, V
CC
(Note 2)
Input Voltage, V
IN
(DI, DE, or RE)
Voltage Range at Any Bus Terminal
(AB)
Receiver Outputs
Package Thermal Impedance,
θ
JA
SOIC
DIP
Junction Temperature (Note 3)
Operating Free-Air Temperature
Range, T
A
Commercial
Industrial
Storage Temperature Range
Soldering Information
Infrared or Convection (20 sec.)
Lead Temperature (4 sec.)
ESD Rating (Note 4)
7V
0.3V to V
CC
+ 0.3V
7V to 12V
0.3V to V
CC
+ 0.3V
125C/W
88C/W
150C
0C to 70C
40C to 85C
65C to 150C
235C
260C
7kV
Operating Ratings
Min Nom Max
4.75
5.0
7
Supply Voltage, V
CC
Voltage at any Bus Terminal
(Separately or Common Mode)
V
IN
or V
IC
High-Level Input Voltage, V
IH
(Note 5)
Low-Level Input Voltage, V
IL
(Note 5)
Differential Input Voltage, V
ID
(Note 6)
High-Level Output
Driver, I
OH
Receiver, I
OH
Low-Level Output
Driver, I
OL
Receiver, I
OL
5.25
12
V
V
2
V
0.8
V
±
12
V
150 mA
42
mA
80
26
mA
mA
Electrical Characteristics
Over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
Symbol
Driver Section
| V
OD1
|
| V
OD2
|
Parameter
Conditions
Min
Typ
Max
Units
Differential Output Voltage
Differential Output Voltage
R =
∞
(
Figure 1
)
R = 50
(
Figure 1
) ,RS-422
R = 27
(
Figure 1
) ,RS-485
R = 27
or 50
(
Figure 1
), (Note 7)
5.25
V
V
2.0
1.5
5.0
0.2
V
OD
Change in Magnitude of
Driver Differential Output
Voltage for Complementary
Output States
Common-Mode Output
Voltage
Change in Magnitude of
Driver Common-Mode Output
Voltage for Complementary
Output States
CMOS Inout Logic Threshold
High
CMOS Input Logic Threshold
Low
Logic Input Current
Receiver Section
I
IN2
Input Current (A, B)
V
V
OC
R = 27
or 50
(
Figure 1
)
3.0
V
V
OC
R = 27
or 50
(
Figure 1
), (Note 7)
0.2
V
V
IH
DE, DI, RE
2.0
V
V
IL
DE, DI, RE
0.8
V
I
IN1
DE, DI, RE
±
2
μA
DE = 0V, V
CC
= 0V or 5.25V
V
IN
= 12V
V
IN
= 7V
7V
≤
V
CM
≤
+ 12V
1.0
mA
0.8
+0.2
V
TH
Differential Input Threshold
Voltage
Input Hysteresis Voltage
(V
TH+
V
TH
)
0.2
V
V
TH
V
CM
= 0
95
mV
L
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LMS485IM | 制造商:Texas Instruments 功能描述:IC BUS TRANSCEIVER SOIC8 5V 485 |
| LMS485IM/NOPB | 功能描述:TXRX 5V RS422/485 DIFF BUS 8SOIC RoHS:是 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:25 系列:- 类型:收发器 驱动器/接收器数:2/2 规程:RS232 电源电压:4.5 V ~ 5.5 V 安装类型:通孔 封装/外壳:16-DIP（0.300"，7.62mm） 供应商设备封装:16-PDIP 包装:管件 |
| LMS485IMX | 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述: |
| LMS485IMX/NOPB | 功能描述:TXRX 5V RS422/485 DIFF BUS 8SOIC RoHS:是 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:25 系列:- 类型:收发器 驱动器/接收器数:2/2 规程:RS232 电源电压:4.5 V ~ 5.5 V 安装类型:通孔 封装/外壳:16-DIP（0.300"，7.62mm） 供应商设备封装:16-PDIP 包装:管件 |
| LMS485INA | 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述: |
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