AX88172A ASIX [ASIX Electronics Corporation], AX88172A Datasheet - Page 28

• Manufacturer Part Number: AX88172A
• Description: USB 2.0 to 10/100M Fast Ethernet Controller
• Manufacturer: ASIX [ASIX Electronics Corporation]

*: If the system applications require using hardware reset pin, RESET_N, to reset AX88772A/AX88172A during device
Symbol
9.4 AC Timing Characteristics
T
T
T
T
T
T
Symbol
Symbol
RESET_N
Trst
H_XTL12P
L_XTL12P
H_XTL25P
L_XTL25P
P_XTL12P
P_XTL25P
9.4.1 Clock Timing
9.4.2 Reset Timing
XTL12P
initialization or normal operation after VBUS pin is asserted, the above timing spec (Min=5
RESET_N should be met.
Notice that the following AC timing specifications for output pins are based on C
load)=50pF.
XTL25P
XTL12P
Reset pulse width after XTL12P is running
XTL12P clock cycle time
XTL12P clock high time
XTL12P clock low time
XTL25P clock cycle time
XTL25P clock high time
XTL25P clock low time
Parameter
Parameter
T
Description
T
H_XTL25P
H_XTL12P
T
P_XTL25P
T
P_XTL12P
T
Trst
T
L_XTL25P
L_XTL12P
Condition
Condition
USB 2.0 to 10/100M Fast Ethernet Controller
Min
60
28
Typ
-
Min
Min
-
-
-
-
-
-
120000 XTL12P clock cycle*
V
V
V
V
Max
ASIX ELECTRONICS CORPORATION
IH
IH
IL
IL
83.33
Typ
41.6
41.6
Typ
40.0
20.0
20.0
AX88772A/AX88172A
Max
Max
-
-
-
-
-
-
Unit
Low-pin-count
Unit
Unit
μ
ns
ns
ns
ns
ns
ns
s, Max=10ms) of
L
(Output