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參數(shù)資料
| 型號： | MAX14780EESA+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 14/14頁 |
| 文件大?。?/td> | 0K |
| 描述： | TRANSCEIVER RS-485/RS-422 8SO |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準包裝： | 2,500 |
| 系列： | * |
9
Maxim Integrated
+5.0V, ±30kV ESD-Protected, Fail-Safe,
Hot-Swap, RS-485/RS-422 Transceiver
MAX14780E
Pin Configuration
Pin Description
Function Tables
R
D
RO
DI
VCC
B
A
GND
8
7
6
5
1
+
2
3
4
SO/PDIP
RE
DE
PIN
NAME
FUNCTION
1
RO
Receiver Output. When RE is low and if (A - B) R -50mV, RO is high; if (A - B) P -200mV, RO is low.
2
RE
Receiver Output Enable. Drive RE low to enable RO; RO is high impedance when RE is high. Drive
RE high and DE low to enter low-power shutdown mode. RE is a hot-swap input (see the Hot-Swap
Capability section for details).
3
DE
Driver Output Enable. Drive DE high to enable driver outputs. These outputs are high impedance
when DE is low. Drive RE high and DE low to enter low-power shutdown mode. DE is a hot-swap
input (see the Hot-Swap Capability section for details).
4
DI
Driver Input. With DE high, a low on DI forces noninverting output low and inverting output high.
Similarly, a high on DI forces noninverting output high and inverting output low.
5
GND
Ground
6
A
Noninverting Receiver Input and Noninverting Driver Output
7
B
Inverting Receiver Input and Inverting Driver Output
8
VCC
Positive Supply VCC = +5.0V Q10%. Bypass VCC to GND with a 0.1FF capacitor.
TRANSMITTING
INPUTS
OUTPUTS
RE
DE
DI
B
A
X
1
0
1
X
1
0
1
0
X
High-Z
1
0
X
Shutdown
RECEIVING
INPUTS
OUTPUTS
RE
DE
A-B
RO
0
X
R
-50mV
1
0
X
P
-200mV
0
X
Open/shorted
1
X
High-Z
1
0
X
Shutdown
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