3-18
DC and Switching Characteristics
Lattice Semiconductor
LatticeXP Family Data Sheet
LatticeXP Internal Timing Parameters
1
Over Recommended Operating Conditions
Parameter
Description
-5
-4
-3
Units
Min.
Max.
Min.
Max.
Min.
Max.
PFU/PFF Logic Mode Timing
tLUT4_PFU
LUT4 Delay (A to D Inputs to F Output)
—
0.28
—
0.34
—
0.40
ns
tLUT6_PFU
LUT6 Delay (A to D Inputs to OFX Output)
—
0.44
—
0.53
—
0.63
ns
tLSR_PFU
Set/Reset to Output of PFU
—
0.90
—
1.08
—
1.29
ns
tSUM_PFU
Clock to Mux (M0,M1) Input Setup Time
0.13
—
0.15
—
0.19
—
ns
tHM_PFU
Clock to Mux (M0,M1) Input Hold Time
-0.04
—
-0.03
—
-0.03
—
ns
tSUD_PFU
Clock to D Input Setup Time
0.13
—
0.16
—
0.19
—
ns
tHD_PFU
Clock to D Input Hold Time
-0.03
—
-0.02
—
-0.02
—
ns
tCK2Q_PFU
Clock to Q Delay, D-type Register Configuration
—
0.40
—
0.48
—
0.58
ns
tLE2Q_PFU
Clock to Q Delay Latch Configuration
—
0.53
—
0.64
—
0.76
ns
tLD2Q_PFU
D to Q Throughput Delay when Latch is Enabled
—
0.55
—
0.66
—
0.79
ns
PFU Dual Port Memory Mode Timing
tCORAM_PFU
Clock to Output
—
0.40
—
0.48
—
0.58
ns
tSUDATA_PFU
Data Setup Time
-0.18
—
-0.14
—
-0.11
—
ns
tHDATA_PFU
Data Hold Time
0.28
—
0.34
—
0.40
—
ns
tSUADDR_PFU
Address Setup Time
-0.46
—
-0.37
—
-0.30
—
ns
tHADDR_PFU
Address Hold Time
0.71
—
0.85
—
1.02
—
ns
tSUWREN_PFU
Write/Read Enable Setup Time
-0.22
—
-0.17
—
-0.14
—
ns
tHWREN_PFU
Write/Read Enable Hold Time
0.33
—
0.40
—
0.48
—
ns
PIC Timing
PIO Input/Output Buffer Timing
tIN_PIO
Input Buffer Delay
—
0.62
—
0.72
—
0.85
ns
tOUT_PIO
Output Buffer Delay
—
2.12
—
2.54
—
3.05
ns
IOLOGIC Input/Output Timing
tSUI_PIO
Input Register Setup Time (Data Before Clock)
1.35
—
1.83
—
2.37
—
ns
tHI_PIO
Input Register Hold Time (Data After Clock)
0.05
—
0.05
—
0.05
—
ns
tCOO_PIO
Output Register Clock to Output Delay
—
0.36
—
0.44
—
0.52
ns
tSUCE_PIO
Input Register Clock Enable Setup Time
-0.09
—
-0.07
—
-0.06
—
ns
tHCE_PIO
Input Register Clock Enable Hold Time
0.13
—
0.16
—
0.19
—
ns
tSULSR_PIO
Set/Reset Setup Time
0.19
—
0.23
—
0.28
—
ns
tHLSR_PIO
Set/Reset Hold Time
-0.14
—
-0.11
—
-0.09
—
ns
EBR Timing
tCO_EBR
Clock to Output from Address or Data
—
4.01
—
4.81
—
5.78
ns
tCOO_EBR
Clock to Output from EBR Output Register
—
0.81
—
0.97
—
1.17
ns
tSUDATA_EBR
Setup Data to EBR Memory
-0.26
—
-0.21
—
-0.17
—
ns
tHDATA_EBR
Hold Data to EBR Memory
0.41
—
0.49
—
0.59
—
ns
tSUADDR_EBR
Setup Address to EBR Memory
-0.26
—
-0.21
—
-0.17
—
ns
tHADDR_EBR
Hold Address to EBR Memory
0.41
—
0.49
—
0.59
—
ns
tSUWREN_EBR
Setup Write/Read Enable to EBR Memory
-0.17
—
-0.13
—
-0.11
—
ns
tHWREN_EBR
Hold Write/Read Enable to EBR Memory
0.26
—
0.31
—
0.37
—
ns
tSUCE_EBR
Clock Enable Setup Time to EBR Output Register
0.19
—
0.23
—
0.28
—
ns
tHCE_EBR
Clock Enable Hold Time to EBR Output Register
-0.13
—
-0.10
—
-0.08
—
ns