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LTC485CS8 датащи(PDF) 6 Page - Linear Technology

номер детали LTC485CS8
подробное описание детали  Low Power RS485 Interface Transceiver
PDF  12 Pages
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производитель  LINER [Linear Technology]
домашняя страница  http://www.linear.com
Logo LINER - Linear Technology

LTC485CS8 датащи(HTML) 6 Page - Linear Technology

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LTC485
sn485 LTC485ffs
1.5V
tPHL
f = 1MHz, tr ≤ 10ns, tf ≤ 10ns
R
–VOD2
A, B
0V
1.5V
tPLH
OUTPUT
INPUT
VOD2
VOL
VOH
LTC485 • F07
Figure 7. Receiver Propagation Delays
Figure 8. Receiver Enable and Disable Times
1.5V
tZL
1.5V
1.5V
tZH
1.5V
tLZ
0.5V
0.5V
tHZ
f = 1MHz, tr ≤ 10ns, tf ≤ 10ns
OUTPUT NORMALLY LOW
OUTPUT NORMALLY HIGH
3V
0V
RE
5V
0V
R
R
LTC485 • F08
LTC485 Transmitting
INPUTS
OUTPUTS
RE
DE
DI
B
A
X
1
1
No Fault
0
1
X
1
0
No Fault
1
0
X0X
X
Z
Z
X
1
X
Fault
Z
Z
LINE
CONDITION
LTC485 Receiving
INPUTS
OUTPUTS
RE
DE
A – B
R
00
≥0.2V
1
00
≤–0.2V
0
0
0
Inputs Open
1
10
X
Z
FU CTIO TABLES
SWITCHI G TI E WAVEFOR S
1.5V
tZL
2.3V
2.3V
tZH
1.5V
tLZ
0.5V
0.5V
tHZ
f = 1MHz, tr ≤ 10ns, tf ≤ 10ns
OUTPUT NORMALLY LOW
OUTPUT NORMALLY HIGH
3V
0V
DI
5V
VOL
VOH
0V
A, B
A, B
LTC485 • F06
Figure 6. Driver Enable and Disable Times



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