參數(shù)資料
型號: LTC485IN8
廠商: LINEAR TECHNOLOGY CORP
元件分類: 通用總線功能
英文描述: Low Power RS485 Interface Transceiver
中文描述: LINE TRANSCEIVER, PDIP8
封裝: 0.300 INCH, PLASTIC, DIP-8
文件頁數(shù): 4/12頁
文件大小: 327K
代理商: LTC485IN8
4
LTC485
SWITCHU
W
W
DI
3V
1.5V
t
PLH
t
r
t
SKEW
1/2 V
O
V
O
80%
10%
0V
B
A
V
O
0V
–V
O
90%
1.5V
t
PLH
t
SKEW
1/2 V
O
f = 1MHz, t
r
10ns, t
f
10ns
20%
t
f
V
DIFF
= V(A) – V(B)
LTC485 F05
Figure 5. Driver Propagation Delays
1.5V
t
ZL
2.3V
2.3V
t
ZH
1.5V
t
LZ
0.5V
0.5V
t
HZ
f = 1MHz, t
r
10ns, t
f
10ns
OUTPUT NORMALLY LOW
OUTPUT NORMALLY HIGH
3V
0V
DI
5V
V
OL
V
OH
0V
A, B
A, B
LTC485 F06
Figure 6. Driver Enable and Disable Times
1.5V
t
PHL
f = 1MHz, t
r
10ns, t
f
10ns
R
–V
OD2
A, B
0V
1.5V
t
PLH
OUTPUT
INPUT
V
OD2
V
OL
V
OH
LTC485 F07
Figure 7. Receiver Propagation Delays
Figure 8. Receiver Enable and Disable Times
1.5V
t
ZL
1.5V
1.5V
t
ZH
1.5V
t
LZ
0.5V
0.5V
t
HZ
f = 1MHz, t
r
10ns, t
f
10ns
OUTPUT NORMALLY LOW
OUTPUT NORMALLY HIGH
3V
0V
RE
5V
0V
R
R
LTC485 F08
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