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ST75185CDR Datasheet(PDF) 7 Page - STMicroelectronics

Part # ST75185CDR
Description  Multiple RS-232 drivers and receivers
Download  21 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST75185CDR Datasheet(HTML) 7 Page - STMicroelectronics

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ST75185
Electrical characteristics
7/21
Note:
All typical values are at TA = 25°C, VCC = 5V, VDD = 9V and VSS=-9V
Table 8.
Receiver electrical characteristics over operating conditions
Symbol
Parameter
Test Conditions
Value
Unit
Min.
Typ.
Max.
VT+
Positive Going Threshold Voltage
(See
Figure 9)2.2
2.4
V
VT-
Negative Going Threshold Voltage
TA = 25 °C (See Figure 9)
0.75
0.97
V
Vhys
Input Hysteresis (VT+ - VT-)
0.5
V
VOH
High Level Output Voltage
IOH = -0.5mA
VIH = 0.75 V
2.6
4
5
V
Inputs Open
2.6
VOL
Low Level Output Voltage
VI = 3 V
IOL = 10 mA
0.2
0.45
V
IIH
High Level Input Current
VI = 25 V (See Figure 9)3.6
8.3
mA
VI = 3 V
(See
Figure 9)0.43
IIL
Low Level Input Current
VI = -25 V (See Figure 9)
-3.6
-8.3
mA
VI = -3 V (See Figure 9)-0.43
IOS
Short-Circuit Output Current
VI = 0 V
VO = 0 V
(See
Figure 7)
-3.4
-12
mA
Table 9.
Receiver switching characteristics
(VDD = 12V, VSS = -12V, VCC = 5V TA = 25°C)
Symbol
Parameter
Test Conditions
Value
Unit
Min.
Typ.
Max.
tPLH
Propagation Delay Time Low to
High Level Output
RL = 5 KΩ
CL = 50 pF
(See
Figure 9)
400
1000
ns
tPHL
Propagation Delay Time High to
Low Level Output
RL = 5 KΩ
CL = 50 pF
(See
Figure 9)
70
150
ns
tTLH
Transition Time Low to High Level
Output
RL = 5 KΩ
CL = 50 pF
(See
Figure 9)
200
525
ns
tTHL
Transition Time High to Low Level
Output
RL = 5 KΩ
CL = 50 pF
(See
Figure 9)
20
60
ns


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