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ST490ABN 데이터시트(PDF) 4 Page - STMicroelectronics

부품명 ST490ABN
상세설명  LOW POWER HIGH SPEED RS-485/RS-422 TRANSCEIVER
PDF  11 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST490ABN 데이터시트(HTML) 4 Page - STMicroelectronics

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ST490A
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RECEIVER ELECTRICAL CHARACTERISTICS
VCC = 4.5V to 5.5V, TA = -40 to 85°C, unless otherwise specified. Typical values are referred to Ta = 25°C)
DRIVER SWITCHING CHARACTERISTICS
VCC =4.5V to 5.5V, TA = -40 to 85°C, unless otherwise specified. Typical values are referred to Ta = 25°C)
RECEIVER SWITCHING CHARACTERISTICS
VCC =4.5V to5.5V, TA = -40 to 85°C, unless otherwise specified. Typical values are referred to Ta = 25°C)
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
IIN1
Logic Input Current
± 2.0
µA
IIN2
Input Current (A, B)
other input=0V
VCC= 0 or 5.25V
VIN=12V
0.5
1
mA
VIN=-7V
-0.35
-0.8
mA
VTH
Receiver Differential
Threshold Voltage
VCM = -7V to 12V
-0.2
0.2
V
∆V
TH
Receiver Input Hysteresis
VCM =0V
70
mV
VOH
Receiver Output High
Voltage
IOUT = -8mA, VID = 200mV
3.5
4.7
V
VOL
Receiver Output Low
Voltage
IOUT = 8mA, VID = -200mV
0.2
0.4
V
RRIN
Receiver Input Resistance
VCM = -7V to 12V
12
24
K
Ω
IOSR
Receiver Short-Circuit
Current
VO =0V toVCC
795
mA
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
DR
Maximum Data Rate
Jitter <5%
25
50
Mbps
tPLH
tPHL
Propagation Delay Input to
Output
RL=54Ω
CL1=CL2=50pF, (Figure 1)
10
16
ns
tSKEW
Differential Output Delay
Skew
RL=54Ω
CL1=CL2=50pF, (Figure 1)
1
3
ns
tTLH
tTHL
Rise or Fall Differential
Time
RL=54Ω
CL1=CL2=50pF, (Figure 1)
8
12
ns
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
tPLH
tPHL
Propagation Delay Input to
Output
CL = 15pF
(Figures 2,4)
19
30
ns
tSKD
|tPLH - tPHL| Receiver Output
Skew
CL = 15pF
(Figures 2,4)
1
3
ns
tTLH
tTHL
Rise or Fall Time
CL = 15pF
(Figures 2,4)
8
ns



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