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參數(shù)資料
| 型號(hào)： | MAX491 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | 【15kV ESD-Protected, Slew-Rate-Limited, Low-Power, RS-485/RS-422 Transceivers |
| 中文描述： | 低功耗、限擺率、RS-485/RS-422收發(fā)器 |
| 文件頁(yè)數(shù)： | 7/16頁(yè) |
| 文件大?。?/td> | 133K |
| 代理商： | MAX491 |
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±15kV ES D-Protec ted, S lew-Rate-Limited,
Low-Power, RS -485/RS -422 Transc eivers
_______________________________________________________________________________________
7
M
______________________________________________________________Pin Desc ription
1
2
Receiver Output: If A > B by 200mV, RO will be high;
If A < B by 200mV, RO will be low.
Receiver Output Enable. RO is enabled when–—is
low; RO is high impedance when–—is high.
2
—
3
—
Driver Output Enable. The driver outputs, Y and Z, are
enabled by bringing DE high. They are high imped-
ance when DE is low. If the driver outputs are enabled,
the parts function as line drivers. While they are high
4
3
Driver Input. A low on DI forces output Y low and out-
put Z high. Similarly, a high on DI forces output Y high
and output Z low.
6
—
Noninverting Receiver Input and Noninverting Driver
Output
—
6
Inverting Driver Output
—
5
Noninverting Driver Output
5
4
Ground
—
—
No Connect—not internally connected
8
1
Positive Supply: 4.75V
≤
V
CC
≤
5.25V
—
7
Inverting Receiver Input
7
—
Inverting Receiver Input and Inverting Driver Output
—
8
Noninverting Receiver Input
PIN
2
3
4
5
—
10
9
6, 7
1, 8, 13
14
11
—
12
RO
–—
DE
DI
A
Z
Y
GND
N.C.
V
CC
B
B
A
FUNCTION
MAX489E
MAX491E
NAME
MAX488E
MAX490E
MAX481E/MAX483E
MAX485E/MAX487E
MAX1487E
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| MAX491C | Low-Power, Slew-Rate-Limited RS-485/RS-422 Transceivers |
| MAX491CPD | Low-Power, Slew-Rate-Limited RS-485/RS-422 Transceivers |
| MAX491CSD | Low-Power, Slew-Rate-Limited RS-485/RS-422 Transceivers |
| MAX491E | Low-Power, Slew-Rate-Limited RS-485/RS-422 Transceivers |
| MAX491EPD | Low-Power, Slew-Rate-Limited RS-485/RS-422 Transceivers |
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