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參數(shù)資料
| 型號： | LTC1349 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | 5V Low Power RS232,3-Driver/5-ReceiverTransceiver(5V,低功率，RS23，3發(fā)5收收發(fā)器(關斷，帶2個活動接收器）) |
| 中文描述： | 5V的低功耗的RS232 ,3 -驅(qū)動器/ 5 ReceiverTransceiver（5V的，低功率，RS23，3發(fā)5收收發(fā)器（關斷，帶2個活動接收器）） |
| 文件頁數(shù)： | 3/8頁 |
| 文件大小： | 156K |
| 代理商： | LTC1349 |
3
LTC1349
PARAMETER
Slew Rate
CONDITIONS
R
L
= 3k, C
L
= 51pF
R
L
= 3k, C
L
= 2500pF
t
HLD
(Figure 1)
t
LHD
(Figure 1)
t
HLR
(Figure 2)
t
LHR
(Figure 2)
MIN
TYP
8
5
2
2
0.3
0.2
MAX
30
UNITS
V/
μ
s
V/
μ
s
3
Driver Propagation Delay
(TTL to RS232)
Receiver Propagation Delay
(RS232 to TTL)
G
G
3.5
3.5
0.8
0.8
μ
s
μ
s
μ
s
μ
s
G
G
ELECTRICAL C
HARA TERISTICS
C
D
V
CC
= 5V, C1 = C2 = C3 = C4 = 0.1
μ
F, unless otherwise noted.
PARAMETER
Power Supply
V
CC
Supply Current
CONDITIONS
MIN
TYP
MAX
UNITS
No Load (All Drivers V
IN
= V
CC
)(Note 2), 0
°
C
≤
T
A
≤
70
°
C
No Load (All Drivers V
IN
= 0V)(Note 2), 0
°
C
≤
T
A
≤
70
°
C
No Load (All Drivers V
IN
= V
CC
)(Note 2), 0
°
C
≤
T
A
≤
85
°
C
No Load (All Drivers V
IN
= V
CC
)(Note 2), –40
°
C
≤
T
A
≤
0
°
C
No Load (All Drivers V
IN
= 0V)(Note 2), –40
°
C
≤
T
A
≤
85
°
C
SHUTDOWN (Note 3)
G
G
G
G
G
0.3
0.5
0.3
0.3
0.5
35
1.4
1.4
0.8
1.0
1.0
1.5
1.5
50
0.8
mA
mA
mA
mA
mA
μ
A
Supply Leakage Current (V
CC
)
On/Off Threshold Low
On/Off Threshold High
G
G
V
V
G
2.0
C
HARA TERISTICS
AC
V
CC
= 5V, C1 = C2 = C3 = C4 = 0.1
μ
F, unless otherwise noted.
TYPICAL PERFOW U
TEMPERATURE (°C)
–40
–8
D
–6
–2
0
2
40
10
LTC1349 TPC01
–4
0
100
4
6
8
–20
20
60
80
R
L
= 3k
OUTPUT HIGH
V
CC
= 5V
V
CC
= 4.5V
OUTPUT LOW
V
CC
= 4.5V
V
CC
= 5V
Driver Output Voltage
DATA RATE (k BAUD)
0
S
150
45
40
35
30
25
20
15
10
5
0
LTC1349 TPC03
50
175
25
75
100
125
V
CC
= 5V
R
L
= 3k
C
= 2500pF
3 DRIVERS ACTIVE
Supply Current vs Data Rate
TEMPERATURE (C)
–40
T
1.8
2.0
2.2
20
60
LTC1349 TPC02
1.6
1.4
–20
0
40
80
100
1.2
1.0
V
TH
V
TL
Receiver Input Thresholds
The
G
denotes specifications which apply over the operating temperature
range (0
°
C
≤
T
A
≤
70
°
Cfor commercial grade, –40
°
C
≤
T
A
≤
85
°
C for
industrial grade).
Note 1:
Absolute Maximum Ratings are those values beyond which the life
of the device may be impaired.
Note 2:
Supply current is measured with driver and receiver outputs
unloaded.
Note 3:
Supply current and leakage current measurements in SHUTDOWN
are performed with V
ON/OFF
= 0V.
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