参数资料
型号: LTC1347CSW#PBF
厂商: Linear Technology
文件页数: 3/8页
文件大小: 0K
描述: IC TXRX 5V RS232 LOW PWR 28-SOIC
标准包装: 27
类型: 收发器
驱动器/接收器数: 3/5
规程: RS232
电源电压: 5V
安装类型: 表面贴装
封装/外壳: 28-SOIC(0.295",7.50mm 宽)
供应商设备封装: 28-SOIC
包装: 管件
3
LTC1347
1347fa
Note 3: Supply current and leakage current measurements in Shutdown
are performed with VON/OFF = 0V.
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.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Slew Rate
RL = 3k, CL = 51pF
8
30
V/s
RL = 3k, CL = 2500pF
3
5
V/s
Driver Propagation Delay
tHLD (Figure 1)
2
3.5
s
(TTL to RS232)
tLHD (Figure 1)
2
3.5
s
Receiver Propagation Delay
tHLR (Figure 2)
0.3
0.8
s
(RS232 to TTL)
tLHR (Figure 2)
0.2
0.8
s
AC CHARACTERISTICS
TYPICAL PERFOR A CE CHARACTERISTICS
UW
Driver Output Voltage
TEMPERATURE (°C)
–40
–8
DRIVER
OUTPUT
VOLTAGE
(V)
–6
–2
0
2
40
10
1347 G01
–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
DATA RATE (kBAUD)
0
SUPPLY
CURRENT
(mA)
150
45
40
35
30
25
20
15
10
5
0
1347 G03
50
175
25
75
100
125
VCC = 5V
RL = 3k
CL = 2500pF
3 DRIVERS ACTIVE
Supply Current vs Data Rate
TEMPERATURE (C)
–40
THRESHOLD
VOLTAGE
(V)
1.8
2.0
2.2
20
60
1347 G02
1.6
1.4
–20
0
40
80
100
1.2
1.0
VTH
VTL
Receiver Input Thresholds
DC ELECTRICAL CHARACTERISTICS
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Power Supply Generator
V+ Output Voltage
IOUT = 0mA
8.0
V
IOUT = 12mA
7.5
V
VOutput Voltage
IOUT = 0mA
– 8.0
V
IOUT = – 12mA
– 7.0
V
Supply Rise Time
Shutdown to Turn-On
0.2
ms
Power Supply
VCC Supply Current
No Load (All Drivers VIN = 5V)(Note 2)
0.6
1.1
mA
No Load (All Drivers VIN = 0V) (Note 2)
0.8
1.3
mA
Shutdown (Note 3)
80.0
120.0
A
On/Off Threshold Low
1.4
0.8
V
On/Off Threshold High
2.0
1.4
V
The denotes specifications which apply over the full operating
temperature range. VCC = 5V, C1 = C2 = C3 = C4 = 0.1F, unless otherwise noted.
The denotes specifications which apply over the full operating temperature range.
VCC = 5V, C1 = C2 = C3 = C4 = 0.1F, unless otherwise noted.
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