
Lattice Semiconductor
ispMACH 4000ZE Family Data Sheet
24
ispMACH 4000ZE Internal Timing Parameters
Over Recommended Operating Conditions
Parameter
Description
LC4032ZE
LC4064ZE
Units
-4
Min.
Max.
Min.
Max.
In/Out Delays
tIN
Input Buffer Delay
—
0.85
—
0.90
ns
tGCLK_IN
Global Clock Input Buffer Delay
—
1.60
—
1.60
ns
tGOE
Global OE Pin Delay
—
2.25
—
2.25
ns
tBUF
Delay through Output Buffer
—
0.75
—
0.90
ns
tEN
Output Enable Time
—
2.25
—
2.25
ns
tDIS
Output Disable Time
—
1.35
—
1.35
ns
tPGSU
Input Power Guard Setup Time
—
3.30
—
3.55
ns
tPGH
Input Power Guard Hold Time
—
0.00
—
0.00
ns
tPGPW
Input Power Guard BIE Minimum Pulse Width
—
5.00
—
5.00
ns
tPGRT
Input Power Guard Recovery Time Following BIE
Dissertation
—
5.00
—
5.00
ns
Routing Delays
tROUTE
Delay through GRP
—
1.60
—
1.70
ns
tPDi
Macrocell Propagation Delay
—
0.25
—
0.25
ns
tMCELL
Macrocell Delay
—
0.65
—
0.65
ns
tINREG
Input Buffer to Macrocell Register Delay
—
0.90
—
1.00
ns
tFBK
Internal Feedback Delay
—
0.55
—
0.55
ns
tORP
Output Routing Pool Delay
—
0.30
—
0.30
ns
Register/Latch Delays
tS
D-Register Setup Time (Global Clock)
0.70
—
0.85
—
ns
tS_PT
D-Register Setup Time (Product Term Clock)
1.25
—
1.85
—
ns
tH
D-Register Hold Time
1.50
—
1.65
—
ns
tST
T-Register Setup Time (Global Clock)
0.90
—
1.05
—
ns
tST_PT
T-register Setup Time (Product Term Clock)
1.45
—
1.65
—
ns
tHT
T-Resister Hold Time
1.50
—
1.65
—
ns
tSIR
D-Input Register Setup Time (Global Clock)
0.85
—
0.80
—
ns
tSIR_PT
D-Input Register Setup Time (Product Term Clock)
1.45
—
1.45
—
ns
tHIR
D-Input Register Hold Time (Global Clock)
1.15
—
1.30
—
ns
tHIR_PT
D-Input Register Hold Time (Product Term Clock)
0.90
—
1.10
—
ns
tCOi
Register Clock to Output/Feedback MUX Time
—
0.35
—
0.40
ns
tCES
Clock Enable Setup Time
1.00
—
2.00
—
ns
tCEH
Clock Enable Hold Time
0.00
—
0.00
—
ns
tSL
Latch Setup Time (Global Clock)
0.70
—
0.95
—
ns
tSL_PT
Latch Setup Time (Product Term Clock)
1.45
—
1.85
—
ns
tHL
Latch Hold Time
1.40
—
1.80
—
ns
tGOi
Latch Gate to Output/Feedback MUX Time
—
0.40
—
0.35
ns
tPDLi
Propagation Delay through Transparent Latch to Output/
Feedback MUX
—
0.30
—
0.25
ns
tSRi
Asynchronous Reset or Set to Output/Feedback MUX
Delay
—
0.30
—
0.30
ns