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參數(shù)資料
| 型號： | MAX483MJA |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 通用總線功能 |
| 英文描述： | 3.3V Differential Transceiver 8-SOIC -40 to 125 |
| 中文描述： | LINE TRANSCEIVER, CDIP8 |
| 封裝： | CERAMIC, DIP-8 |
| 文件頁數(shù)： | 7/19頁 |
| 文件大?。?/td> | 439K |
| 代理商： | MAX483MJA |
M
Low-Power, Slew-Rate-Limited
RS-485/RS-422 Transceivers
_______________________________________________________________________________________
7
______________________________________________________________Pin Description
MAX481
MAX483
MAX485
MAX487
MAX1487
TOP VIEW
NOTE: PIN LABELS Y AND Z ON TIMING, TEST, AND WAVEFORM DIAGRAMS REFER TO PINS A AND B WHEN DE IS HIGH.
TYPICAL OPERATING CIRCUIT SHOWN WITH DIP/SO PACKAGE.
1
2
3
4
8
7
5
V
CC
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
B
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
RE
is low; RO is
high impedance when
RE
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
RE
is low.
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
RE
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
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