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參數(shù)資料
| 型號： | MAX1481 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Software-Selectable, Half-/Full-Duplex, Slew-Rate-Limited, 12Mbps, RS-485/RS-422 Transceivers in レMAX Package |
| 中文描述： | 軟件可選的、半/全雙工、限擺率、12Mbps、RS-485/RS-422收發(fā)器，µMAX封裝 |
| 文件頁數(shù)： | 7/16頁 |
| 文件大?。?/td> | 184K |
| 代理商： | MAX1481 |
PIN
M
Software-Selectable, Half-/Full-Duplex, Slew-Rate-Limited,
12Mbps, RS-485/RS-422 Transceivers in μMAX Package
_______________________________________________________________________________________
7
______________________________________________________________Pin Desc ription
1
1
Receiver Output. When
RE
is low and if A - B
≥
200mV, RO goes high; if A - B
≤
-200mV, RO goes low.
—
2
Half-/Full-Duplex Selector Input. Connect H/
F
to V
CC
for half-duplex mode, and
connect to GND for full-duplex mode.
2
—
Receiver Output Enable Input. Drive
RE
low to enable RO; RO is high impedance
when
RE
is high. For MAX1481 only, drive
RE
high and DE low to enter the low-
power shutdown mode.
3
3
Driver Output Enable Input. Drive DE high to enable driver outputs. These outputs
are high impedance when DE is low.
4
4
Driver Input. With DE high, a low on DI forces noninverting output low and invert-
ing output high. Similarly, a high on DI forces noninverting output high and invert-
ing output low.
5
5
Ground
6
6
Inverting Receiver Input
—
—
Receiver Input Resistors*
7
7
Inverting Driver Output
—
—
Inverting Driver Output and Inverting Receiver Input
8
8
Noninverting Driver Output
—
—
Noninverting Driver Output and Noninverting Receiver Input
9
9
Noninverting Receiver Input
—
—
Receiver Input Resistors*
Positive Supply; +4.75V
≤
V
CC
≤
+5.25V
10
10
MAX1481/
MAX1484
1
RO
2
H/
F
PIN
—
RE
3
DE
4
DI
5
GND
—
B
6
B
—
Z
7
Z
—
Y
8
Y
—
A
9
A
10
V
CC
MAX1485/MAX1486
H/
F
= 0
FUNCTION
NAME
H/
F
= 1
*(MAX1485/MAX1486 only) In half-duplex mode, the driver outputs serve as receiver inputs. The full-duplex receiver inputs (A and B)
will still have a 1/8-unit load, but are not connected to the receiver.
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| MAX1481-MAX1486 | Software-Selectable, Half-/Full-Duplex, Slew-Rate-Limited, 12Mbps, RS-485/RS-422 Transceivers in レMAX Package |
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| MAX1484EUB | Software-Selectable, Half-/Full-Duplex, Slew-Rate-Limited, 12Mbps, RS-485/RS-422 Transceivers in レMAX Package |
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