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AX88780 数据表(PDF) 39 Page - ASIX Electronics Corporation

部件名 AX88780
功能描述  High-Performance Non-PCI Single-Chip 32-bit 10/100M Fast Ethernet Controller
PDF  55 Pages
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制造商  ASIX [ASIX Electronics Corporation]
网页  http://www.asix.com.tw
标志 ASIX - ASIX Electronics Corporation

AX88780 数据表(HTML) 39 Page - ASIX Electronics Corporation

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AX88780
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ASIX ELECTRONICS CORPORATION
6.1.5 DC Characteristics of 3.3V IO Pins
Symbol
Description
Min
Typ
Max
Units
VCC3
Power supply of 3.3V IO
3.0
3.3
3.6
V
Vil
Input low voltage
-
-
0.8
V
Vih
Input high voltage
2.0
-
-
V
Vol
Output low voltage
-
-
0.4
V
Voh
Output high voltage
2.4
V
Rpu
Input pull-up resistance
40
75
190
K
Ω
Rpd
Input pull-down resistance
40
75
190
K
Ω
6.1.6 Transmission Characteristics
Symbol
Description
Conditions
Min.
Typ.
Max.
Units
Vpp
Peak-to-Peak differential output voltage
10BASE-T mode
4.5
5
5.5
V
2xVtxa
Peak-to-Peak differential output voltage, 2xVtxa
100BASE-TX
1.9
2
2.1
V
Tr/Tf
Signal rising/falling time
100BASE-TX
3
4
5
ns
Tjit
Output jitter
100BASE-TX
1.4
ns
Vtxov
Overshoot
100BASE-TX
5
%
6.1.7 Reception Characteristics
Symbol
Description
Conditions
Min.
Typ.
Max.
Units
Rimp
Reception impedance
5
KΩ
Vsqu
Differential squelch voltage
10BASE-TX
300
400
500
mV
Vcom
Common mode input voltage
1.2
1.6
2
V
Lfree
Max error-free cable length
100
Meter
Figure 6: Transmit waveform specification
0V
Tr
10%
90%
+Vtxon
+Vtxa



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