AX88772 ASIX [ASIX Electronics Corporation], AX88772 Datasheet - Page 35
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AX88772
Manufacturer Part Number
AX88772
Description
USB to 10/100 Fast Ethernet/HomePNA Controller
Manufacturer
ASIX [ASIX Electronics Corporation]
Datasheet
1.AX88772.pdf
(42 pages)
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8.3 Power-up Sequence
At power-up, AX88772 requires the VDD3/AVDD3 power supply to rise to nominal operating voltage within Trise3 and
the VDDK/AVDD2/AVDDK power supply to rise to nominal operating voltage within Trise2.
8.4 AC Timing Characteristics
8.4.1 Clock Timing
8.4.1.1 XIN12M
T
T
T
Symbol
T
T
Symbol
T
VDDK/VDD2/AVDDK
H_XIN12M
P_XIN12M
L_XIN12M
R_XIN12M
F_XIN12M
T
T
delay32
VDD3/AVDD3
rise3
rise2
3.3V power supply rise time
2.5V power supply rise time
3.3V rise to 2.5V rise time delay
XIN12M clock cycle time
XIN12M clock high time
XIN12M clock low time
XIN12M rise time
XIN12M fall time
T
R_XIN12M
Parameter
Parameter
T
H_XIN12M
T
T
F_XIN12M
P_XIN12M
T
USB to 10/100 Fast Ethernet/HomePNA Controller
V
V
L_XIN12M
Trise3
IL
IH
(max) to V
(min) to V
From 0V to 3.3V
From 0V to 2.5V
Trise2
Condition
Condition
IL
IH
35
(max)
(min)
Tdelay32
Min
Min
-5
-
-
-
-
-
-
-
V
V
ASIX ELECTRONICS CORPORATION
IH
IL
83.33
Typ
Typ
41.6
41.6
-
-
-
-
-
3.3V
0V
0V
2.5V
Max
Max
1.0
1.0
10
10
5
-
-
-
Unit
Unit
ms
ms
ms
ns
ns
ns
ns
ns
AX88772