參數(shù)資料
型號(hào): LTC485M
廠商: Linear Technology Corporation
英文描述: Low Power RS485 Interface Transceiver
中文描述: 低功率485接口收發(fā)器
文件頁(yè)數(shù): 5/12頁(yè)
文件大小: 327K
代理商: LTC485M
5
LTC485
C
HARA TERISTICS
U
A
TYPICAL PERFOR
CE
LTC485 Transmitting
INPUTS
DE
1
1
0
1
OUTPUTS
B
0
1
Z
Z
RE
X
X
X
X
DI
1
0
X
X
A
1
0
Z
Z
No Fault
No Fault
X
Fault
LINE
CONDITION
LTC485 Receiving
INPUTS
DE
0
0
0
0
OUTPUTS
R
1
0
1
Z
RE
0
0
0
1
A – B
0.2V
–0.2V
Inputs Open
X
PIN #
1
NAME
RO
DESCRIPTION
Receiver Output. If the receiver output is enabled
(RE low), then if A > B by 200mV, RO will be
high. If A < B by 200mV, then RO will be low.
Receiver Output Enable. A low enables the
receiver output, RO. A high input forces the
receiver output into a high impedance state.
Driver Outputs Enable. A high on DE enables the
driver output. A and B, and the chip will function
as a line driver. A low input will force the driver
outputs into a high impedance state and the chip
will function as a line receiver.
Driver Input. If the driver outputs are enabled
(DE high), then a low on DI forces the outputs A
low and B high. A high on DI with the driver
outputs enabled will force A high and B low.
Ground Connection.
Driver Output/Receiver Input.
Driver Output/Receiver Input.
Positive Supply; 4.75 < V
CC
< 5.25
2
RE
3
DE
4
DI
5
6
7
8
GND
A
B
V
CC
PIU
U
U
FU
U
Receiver Output High Voltage
vs Output Current
Receiver Output Low Voltage
vs Output Current
OUTPUT VOLTAGE (V)
0
0
O
4
12
16
20
1.0
36
LTC485 TPC01
8
0.5
2.0
24
28
32
1.5
T
A
= 25°C
OUTPUT VOLTAGE (V)
5
0
O
–2
–6
–8
–10
3
–18
LTC485 TPC02
–4
4
–12
–14
–16
2
T
A
= 25°C
TEMPERATURE (°C)
–50
3.0
O
3.2
3.6
3.8
4.0
75
4.8
LTC485 TPC03
3.4
0
125
4.2
4.4
4.6
–25
25
50
100
I = 8mA
Receiver Output High Voltage
vs Temperature
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC485MJ8 制造商:Linear Technology 功能描述:MS-Interface, Low Power RS485 Interface Transceiver
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