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LTC1337CSW Arkusz danych(PDF) 3 Page - Linear Technology

Numer części LTC1337CSW
Szczegółowy opis  5V Low Power RS232 3-Driver/5-Receiver Transceiver
PDF  8 Pages
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Producent  LINER [Linear Technology]
Strona internetowa  http://www.linear.com
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LTC1337CSW Arkusz danych(HTML) 3 Page - Linear Technology

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LTC1337
1337fa
DC ELECTRICAL CHARACTERISTICS
AC CHARACTERISTICS
The ● denotes specifications which apply over the full operating
temperature range. VCC = 5V, C1 = C2 = C3 = C4 = 0.1µF, unless otherwise noted.
The ● denotes specifications which apply over the full operating temperature range.
VCC = 5V, C1 = C2 = C3 = C4 = 0.1µF, unless otherwise noted.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Power Supply Generator
V+ Output Voltage
IOUT = 0mA
8.0
V
IOUT = 12mA
7.5
V
V– Output Voltage
IOUT = 0mA
– 8.0
V
IOUT = 12mA
– 6.5
V
Supply Rise Time
Shutdown to Turn-On
0.2
ms
Power Supply
VCC Supply Current
No Load (Note 2)
●
0.3
0.5
mA
Supply Leakage Current (VCC)Shutdown (Note 3)
●
110
µA
On/Off Threshold Low
●
1.4
0.8
V
On/Off Threshold High
●
2.0
1.4
V
TYPICAL PERFOR A CE CHARACTERISTICS
TEMPERATURE (°C)
0
60
2.0
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1337 G02
20
70
10
30
40
50
INPUT HIGH
INPUT LOW
Driver Output Voltage
Receiver Input Thresholds
Supply Current vs Data Rate
DATA RATE (k BAUD)
0
150
45
40
35
30
25
20
15
10
5
0
1337 G03
50
175
25
75
100
125
VCC = 5V
RL = 3k
CL = 2500pF
3 DRIVERS ACTIVE
TEMPERATURE (°C)
0
60
10
8
6
4
2
0
–2
–4
–6
–8
1337 G01
20
70
10
30
40
50
VCC = 5V
OUTPUT HIGH
VCC = 4.5V
RL = 3k
VCC = 5V
VCC = 4.5V
OUTPUT LOW
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 and driver inputs tied high.
Note 3: Supply current and leakage measurements in Shutdown are
performed with VON = 0V.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Slew Rate
RL = 3k, CL = 51pF
8
30
V/µs
RL = 3k, CL = 2500pF
2
4
V/µs
Driver Propagation Delay
tHLD (Figure 1)
●
23
µs
(TTL to RS232)
tLHD (Figure 1)
●
23
µs
Receiver Propagation Delay
tHLR (Figure 2)
●
0.3
0.6
µs
(RS232 to TTL)
tLHR (Figure 2)
●
0.2
0.6
µs



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