Specifications

ASIX ELECTRONICS CORPORATION
36
AX88772
USB to 10/100 Fast Ethernet/HomePNA Controller
8.4 AC Timing Characteristics
8.4.1 Clock Timing
8.4.1.1 XIN12M
T
P_XIN12M
T
H_XIN12M
T
L_XIN12M
T
R_XIN12M
T
F_XIN12M
Symbol Parameter Condition Min Typ Max Unit
T
P_XIN12M
XIN12M clock cycle time - 83.33 - ns
T
H_XIN12M
XIN12M clock high time - 41.6 - ns
T
L_XIN12M
XIN12M clock low time - 41.6 - ns
T
R_XIN12M
XIN12M rise time V
IL
(max) to V
IH
(min) - - 1.0 ns
T
F_XIN12M
XIN12M fall time V
IH
(min) to V
IL
(max) - - 1.0 ns
8.4.1.2 XIN25M
T
P_XIN25M
T
H_XIN25M
T
L_XIN25M
T
R_XIN25M
T
F_XIN25M
Symbol Parameter Condition Min Typ Max Unit
T
P_XIN25M
XIN25M clock cycle time - 40.0 - ns
T
H_XIN25M
XIN25M clock high time - 20.0 - ns
T
L_XIN25M
XIN25M clock low time - 20.0 - ns
T
R_XIN25M
XIN25M rise time V
IL
(max) to V
IH
(min) - - 1.0 ns
T
F_XIN25M
XIN25M fall time V
IH
(min) to V
IL
(max) - - 1.0 ns
VIH
VIL
VIH
VIL