ST490ABN 查看數據表（PDF） - STMicroelectronics
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ST490ABN Datasheet PDF : 17 Pages
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ST490AB
Electrical characteristics
Table 8.
Symbol
Receiver electrical characteristics
(VCC = 4.5 V to 5.5 V, TA = -40 to 85 °C, unless otherwise specified. Typical values are
referred to TA = 25 °C)
Parameter
Test conditions
Min. Typ. Max. Unit
IIN1 Logic input current
IIN2 Input current (A, B)
VTH
ΔVTH
VOH
VOL
RRIN
IOSR
Receiver differential threshold
voltage
Receiver input hysteresis
Receiver output high voltage
Receiver output low voltage
Receiver input resistance
Receiver short-circuit current
Other input=0V
VCC= 0 or 5.25V
VIN=12V
VIN=-7V
VCM = -7V to 12V
VCM = 0V
IOUT = -8mA, VID = 200mV
IOUT = 8mA, VID = -200mV
VCM = -7V to 12V
VO = 0V to VCC
± 2.0 μA
0.5
1
mA
-0.35 -0.8 mA
-0.2
0.2
V
70
mV
3.5 4.7
V
0.2 0.4
V
12
24
kΩ
7
95 mA
Table 9.
Symbol
Driver switching characteristics
(VCC = 4.5 V to 5.5 V, TA = -40 to 85 °C, unless otherwise specified. Typical values are
referred to TA = 25 °C)
Parameter
Test conditions
Min. Typ. Max. Unit
DR
tPLH
tPHL
tSKEW
tTLH
tTHL
Maximum data rate
Propagation delay input
to output
Differential output delay
skew
Rise or fall differential
time
Jitter <5%
RL= 54Ω, CL1=CL2=50pF, (Figure 1)
RL= 54Ω, CL1=CL2=50pF, (Figure 1)
RL= 54Ω, CL1=CL2=50pF, (Figure 1)
25
50
Mbps
10
16
ns
1
3
ns
8
12
ns
Table 10.
Symbol
Receiver switching characteristics
(VCC = 4.5 V to 5.5 V, TA = -40 to 85 °C, unless otherwise specified. Typical values are
referred to TA = 25 °C)
Parameter
Test conditions
Min. Typ. Max. Unit
tPLH
tPHL
tSKD
tTLH
tTHL
Propagation delay input
to output
|tPLH - tPHL| Receiver
output skew
CL = 15pF, (Figure 2, Figure 4)
CL = 15pF, (Figure 2, Figure 4)
Rise or fall time
CL = 15pF, (Figure 2, Figure 4)
19
30
ns
1
3
ns
8
ns
7/17
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