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| 型号： | MAX485 |
| 厂商： | Maxim Integrated Products, Inc. |
| 英文描述： | Low-Power, Slew-Rate-Limited RS-485Transceivers(2.5Mbps,半双工, RS-485收发器,直接LTC485代用件) |
| 中文描述： | 低功耗、限摆率、RS-485/RS-422收发器 |
| 文件页数： | 7/16页 |
| 文件大小： | 205K |
| 代理商： | MAX485 |
M
Low-Power, S lew-Rate-Limited
RS -485/RS -422 Transc eivers
_______________________________________________________________________________________
7
______________________________________________________________Pin Desc ription
MAX481
MAX483
MAX485
MAX487
MAX1487
TOP VIEW
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
B
GND
DI
DE
RE
RO
R
D
Rt
Rt
6
D
R
DE
RE
DI
RO
A
B
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
A
DI
MAX481
MAX483
MAX485
MAX487
MAX1487
Figure 1. MAX481/MAX483/MAX485/MAX487/MAX1487 Pin Configuration and Typical Operating Circuit
μMAX
—
—
5
6
7
8
—
2
—
1
3
—
μMAX
4
5
6
7
—
—
8
—
1
—
2
—
DIP/SO
DIP/SO
2
3
Receiver Output Enable. RO is enabled when–—is low; RO is
high impedance when–—is high.
3
4
Driver Output Enable. The driver outputs, Y and Z, are enabled
by bringing DE high. They are high impedance when DE is low. If
the driver outputs are enabled, the parts function as line drivers.
While they are high impedance, they function as line receivers if
DIP/SO
—
4
5
Driver Input. A low on DI forces output Y low and output Z high.
Similarly, a high on DI forces output Y high and output Z low.
5
6, 7
Ground
—
9
Noninverting Driver Output
—
10
Inverting Driver Output
—
3
4
6
—
Noninverting Receiver Input and Noninverting Driver Output
—
12
Noninverting Receiver Input
5
6
—
8
–—
DE
DI
GND
Y
Z
A
A
7
—
—
B
Inverting Receiver Input and Inverting Driver Output
—
7
11
B
Inverting Receiver Input
8
1
14
V
CC
Positive Supply: 4.75V
≤
V
CC
≤
5.25V
—
—
1, 8, 13
N.C.
No Connect—not internally connected
FUNCTION
FUNCTION
NAME
NAME
4
3
1
2
Receiver Output: If A > B by 200mV, RO will be high;
If A < B by 200mV, RO will be low.
2
RO
PIN
MAX481/MAX483/
MAX485/MAX487/
MAX1487
MAX488/
MAX490
MAX489/
MAX491
相关PDF资料 |
PDF描述 |
|---|---|
| MAX1487 | Low-Power, Slew-Rate-Limited RS-485/RS-422 Transceivers(2.5Mbps，半双工，RS-485/RS-422收发器) |
| MAX487 | Low-Power, Slew-Rate-Limited RS-485/RS-422 Transceivers(250kbps,±15kvESD保护,半双工,RS-485/RS-232收发器) |
| MAX488 | Low-Power, Slew-Rate-Limited RS-485Transceivers(250kbps,全双工, RS-485收发器) |
| MAX492 | Dual, Micropower, Single-Supply Rail-to-Rail Op Amps(输入失调电压500μV,单电源满量程运放) |
| MAX494 | Quad, Micropower, Single-Supply Rail-to-Rail Op Amps(输入失调电压500μV,单电源满量程运放) |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX4850ETE | 功能描述:模拟开关 IC RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16 |
| MAX4850ETE+ | 功能描述:模拟开关 IC High-Bandwidth Switch RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16 |
| MAX4850ETE+T | 功能描述:模拟开关 IC High-Bandwidth Switch RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16 |
| MAX4850ETE-T | 功能描述:模拟开关 IC RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16 |
| MAX4850HETE | 功能描述:模拟开关 IC RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16 |
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