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参数资料
| 型号： | MAX1483 |
| 厂商： | Maxim Integrated Products, Inc. |
| 英文描述： | Low Power, Slew-Rate-Limited RS-486 Transceivers(250kbps，半双工，RS-485收发器) |
| 中文描述： | 20µA、1/8单位负载、限摆率、RS-485收发器 |
| 文件页数： | 1/12页 |
| 文件大小： | 142K |
| 代理商： | MAX1483 |
_______________General Desc ription
The MAX1482 and MAX1483 are low-power trans-
ceivers for RS-485 and RS-422 communication. Both
feature slew-rate-limited drivers that minimize EMI and
reduce reflections caused by improperly terminated
cables. Data rates are guaranteed up to 250kbps.
The MAX1482/MAX1483 draw only 20μA of supply cur-
rent. Additionally, they have a low-current shutdown
mode that consumes only 0.1μA. Both parts operate
from a single +5V supply.
Drivers are short-circuit current limited and are protect-
ed against excessive power dissipation by thermal
shutdown circuitry that places the driver outputs into a
high-impedance state. The receiver input has a fail-safe
feature that guarantees a logic-high output if the input
is open circuit.
The MAX1482 is full duplex and the MAX1483 is half
duplex. Both parts have a
1
8
-unit-load input impedance
that guarantees up to 256 transceivers on the bus.
________________________Applic ations
Low-Power RS-485/RS-422 Networks
Transceivers for EMI-Sensitive Applications
Industrial-Control Local Area Networks
Large 256-Node LANs
____________________________Features
o
Low 20μA Operating Current
o
Slew-Rate Limited for Reduced EMI and
Reduced Reflections
o
0.1μA Low-Current Shutdown Mode
o
Designed for RS-485 and RS-422 Applications
o
Operate from a Single +5V Supply
o
-7V to +12V Common-Mode Input Voltage Range
o
Allows up to 256 Transceivers on the Bus—
Guaranteed (
1
8
-unit load)
o
Current Limiting and Thermal Shutdown for
Driver Overload Protection
______________Ordering Information
M
20μA,
1
8
-Unit-Load, S lew-Rate-Limited
RS -485 Transc eivers
________________________________________________________________ Maxim Integrated Products
Call toll free 1-800-998-8800 for free samples or literature.
1
TOP VIEW
1
2
3
4
8
7
6
5
V
CC
B
A
GND
DI
DE
RE
RO
DIP/SO
R
D
1
2
3
4
8
7
6
5
V
CC
A
GND
DE
RE
B
RO
μ
MAX
DI
MAX1483
_________________Pin Configurations
MAX1483
NOTE: PIN LABELS Y AND Z ON TIMING, TEST, AND WAVEFORM
DIAGRAMS REFER TOPINS A AND B WHEN DE IS HIGH.
TYPICAL OPERATING CIRCUIT SHOWN WITH DIP/SOPACKAGE.
1
2
3
4
8
7
5
V
CC
+5V
GND
DI
DE
RE
RO
R
D
Rt
Rt
6
D
R
DE
RE
DI
RO
A
B
B
A
_________Typic al Operating Circ uits
19-0367; Rev 0; 2/95
PART
MAX1482
CPD
MAX1482CSD
MAX1482EPD
MAX1482ESD
MAX1483
CPA
MAX1483CSA
MAX1483CUA
MAX1483EPA
MAX1483ESA
-40°C to +85°C
-40°C to +85°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
0°C to +70°C
0°C to +70°C
TEMP. RANGE
PIN-PACKAGE
14 Plastic DIP
14 SO
14 Plastic DIP
14 SO
8 Plastic DIP
8 SO
8 μMAX
8 Plastic DIP
8 SO
MAX1482 appears at end of data sheet.
MAX1482 appears at end of data sheet.
相关PDF资料 |
PDF描述 |
|---|---|
| MAX1482CPD | 20A, 1.8-Unit-Load, Slew-Rate-Limited RS-485 Transceivers |
| MAX1482CSD | 20A, 1.8-Unit-Load, Slew-Rate-Limited RS-485 Transceivers |
| MAX1483CSA | 20A, 1.8-Unit-Load, Slew-Rate-Limited RS-485 Transceivers |
| MAX1482ESD | 20A, 1.8-Unit-Load, Slew-Rate-Limited RS-485 Transceivers |
| MAX1483EPA | 20A, 1.8-Unit-Load, Slew-Rate-Limited RS-485 Transceivers |
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