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Lattice Semiconductor
ispMACH 4000V/B/C/Z Family Data Sheet
ispMACH 4000V/B/C Internal Timing Parameters
Over Recommended Operating Conditions
Parameter
Description
-2.5
-2.7
-3
-3.5
Units
In/Out Delays
t IN
t GOE
t GCLK_IN
t BUF
t EN
t DIS
Input Buffer Delay
Global OE Pin Delay
Global Clock Input Buffer Delay
Delay through Output Buffer
Output Enable Time
Output Disable Time
—
—
—
—
—
—
0.60
2.04
0.78
0.85
0.96
0.96
—
—
—
—
—
—
0.60
2.54
1.28
0.85
0.96
0.96
—
—
—
—
—
—
0.70
3.04
1.28
0.85
0.96
0.96
—
—
—
—
—
—
0.70
3.54
1.28
0.85
0.96
0.96
ns
ns
ns
ns
ns
ns
Routing/GLB Delays
t ROUTE
t MCELL
t INREG
t FBK
t PDb
t PDi
Delay through GRP
Macrocell Delay
Input Buffer to Macrocell Register
Delay
Internal Feedback Delay
5-PT Bypass Propagation Delay
Macrocell Propagation Delay
—
—
—
—
—
—
0.61
0.45
0.11
0.00
0.44
0.64
—
—
—
—
—
—
0.81
0.55
0.31
0.00
0.44
0.64
—
—
—
—
—
—
1.01
0.55
0.31
0.00
0.44
0.64
—
—
—
—
—
—
1.01
0.65
0.31
0.00
0.94
0.94
ns
ns
ns
ns
ns
ns
Register/Latch Delays
t S
t S_PT
t ST
t ST_PT
t H
t HT
t SIR
t SIR_PT
t HIR
t HIR_PT
t COi
t CES
t CEH
t SL
t SL_PT
t HL
t GOi
D-Register Setup Time
(Global Clock)
D-Register Setup Time
(Product Term Clock)
T-Register Setup Time
(Global Clock)
T-Register Setup Time
(Product Term Clock)
D-Register Hold Time
T-Register Hold Time
D-Input Register Setup Time
(Global Clock)
D-Input Register Setup Time
(Product Term Clock)
D-Input Register Hold Time
(Global Clock)
D-Input Register Hold Time
(Product Term Clock)
Register Clock to Output/Feedback
MUX Time
Clock Enable Setup Time
Clock Enable Hold Time
Latch Setup Time
(Global Clock)
Latch Setup Time (Product Term
Clock)
Latch Hold Time
Latch Gate to Output/Feedback
MUX Time
0.92
1.42
1.12
1.42
0.88
0.88
0.82
1.45
0.88
0.88
—
2.25
1.88
0.92
1.42
1.17
—
—
—
—
—
—
—
—
—
—
—
0.52
—
—
—
—
—
0.33
1.12
1.32
1.32
1.32
0.68
0.68
1.37
1.45
0.63
0.63
—
2.25
1.88
1.12
1.32
1.17
—
—
—
—
—
—
—
—
—
—
—
0.52
—
—
—
—
—
0.33
1.02
1.32
1.22
1.32
0.98
0.98
1.27
1.45
0.73
0.73
—
2.25
1.88
1.02
1.32
1.17
—
—
—
—
—
—
—
—
—
—
—
0.52
—
—
—
—
—
0.33
0.92
1.32
1.12
1.32
1.08
1.08
1.27
1.45
0.73
0.73
—
2.25
1.88
0.92
1.32
1.17
—
—
—
—
—
—
—
—
—
—
—
0.52
—
—
—
—
—
0.33
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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