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LTC1349CS データシート(PDF) 3 Page - Linear Technology

部品番号 LTC1349CS
部品情報  5V Low Power RS232 3-Driver/5-Receiver Transceiver with 2 Receivers Active in SHUTDOWN
PDF  8 Pages
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メーカー  LINER [Linear Technology]
ホームページ  http://www.linear.com
Logo LINER - Linear Technology

LTC1349CS データシート(HTML) 3 Page - Linear Technology

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3
LTC1349
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Slew Rate
RL = 3k, CL = 51pF
8
30
V/
µs
RL = 3k, CL = 2500pF
3
5
V/
µs
Driver Propagation Delay
tHLD (Figure 1)
q
2
3.5
µs
(TTL to RS232)
tLHD (Figure 1)
q
2
3.5
µs
Receiver Propagation Delay
tHLR (Figure 2)
q
0.3
0.8
µs
(RS232 to TTL)
tLHR (Figure 2)
q
0.2
0.8
µs
ELECTRICAL C
C
HARA TERISTICS
C
D
VCC = 5V, C1 = C2 = C3 = C4 = 0.1µF, unless otherwise noted.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Power Supply
VCC Supply Current
No Load (All Drivers VIN = VCC)(Note 2), 0 ≤ TA ≤ 70°C
q
0.3
0.8
mA
No Load (All Drivers VIN = 0V)(Note 2), 0 ≤ TA ≤ 70°C
q
0.5
1.0
mA
No Load (All Drivers VIN = VCC)(Note 2), – 40°C ≤ TA ≤ 85°C
q
0.3
1.0
mA
No Load (All Drivers VIN = 0V)(Note 2), – 40°C ≤ TA ≤ 85°C
q
0.5
1.5
mA
Supply Leakage Current (VCC)
SHUTDOWN (Note 3)
q
35
50
µA
On/Off Threshold Low
q
1.4
0.8
V
On/Off Threshold High
q
2.0
1.4
V
CC
HARA TERISTICS
AC
VCC = 5V, C1 = C2 = C3 = C4 = 0.1µF, unless otherwise noted.
TYPICAL PERFOR A CE CHARACTERISTICS
TEMPERATURE (°C)
–40
–8
–6
–2
0
2
40
10
LTC1349 • TPC01
–4
0
100
4
6
8
–20
20
60
80
RL = 3k
OUTPUT HIGH
VCC = 5V
VCC = 4.5V
OUTPUT LOW
VCC = 4.5V
VCC = 5V
Driver Output Voltage
DATA RATE (k BAUD)
0
150
45
40
35
30
25
20
15
10
5
0
LTC1349 • TPC03
50
175
25
75
100
125
VCC = 5V
RL = 3k
CL = 2500pF
3 DRIVERS ACTIVE
Supply Current vs Data Rate
TEMPERATURE (˚C)
–40
1.8
2.0
2.2
20
60
LTC1349 • TPC02
1.6
1.4
–20
0
40
80
100
1.2
1.0
VTH
VTL
Receiver Input Thresholds
The q denotes specifications which apply over the operating temperature
range (0
°C ≤ TA ≤ 70°Cfor commercial grade, – 40°C ≤ TA ≤ 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 VON/OFF = 0V.



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