TQ8025 查看數據表（PDF） - TriQuint Semiconductor
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TQ8025 Datasheet PDF : 10 Pages
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TQ8025
PRELIMINARY DATA SHEET
Table 9. TQ8025 Timing — RAM Loading, External Configure Pulse Mode 1
Symbol
Parameter
Min.
T1
LOAD high to READY low
3
T2
CLOCK low to READY high
3
T3
ADDREN low to RADD enabled
3
T4
Setup LOAD high to CLOCK high
4
T5
CLOCK low to RADD increment
2
T6
AD0:15 setup before CLOCK low
0
T7
AD0:15 hold time after CLOCK low
2
T8
Setup last CLOCK before CONFIGURE low
2
T9
CONFIGURE low pulse width
10
T10
ADDREN high to RADD tristate
3
T11
LOAD low prior to 3rd CLOCK low
4
T12
LOAD high pulse
TBD
T13
CONFIGURE low to READY low
TBD
T14
CONFIGURE low to SIGNAL PATHS updated
4
T15
CLOCK period
20
Notes: 1. LDMODE = 1; AUTOCONFIG = 0, RESET– = 1.
Max.
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Figure 3. TQ8025 Timing —␣ RAM Loading, External Configure Pulse Mode
CLOCK
LOAD
ADDREN
RADD0:1
READY
AD0:15
CONFIGURE
SIGNAL PATHS
T4
T12
T3
0
T1
T6
D0
T15
T11
T5
1
2
T7
D1
D2
OLD CONFIGURATION
T10
3
0
T2
T13
D3
T8
T9
T14
NEW CONFIGURATION
LDMODE = 1; AUTOCONFIG = 1, RESET– = 1, CONFIG = 1.
6
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