3-16
DC and Switching Characteristics
LatticeECP/EC Family Data Sheet
LatticeECP/EC Internal Switching Characteristics
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)
—
0.25
—
0.31
—
0.36
ns
tLUT6_PFU
LUT6 Delay (A to D Inputs to OFX Output)
—
0.40
—
0.48
—
0.56
ns
tLSR_PFU
Set/Reset to Output of PFU
—
0.81
—
0.98
—
1.14
ns
tSUM_PFU
Clock to Mux (M0,M1) Input Setup Time
0.12
—
0.14
—
0.16
—
ns
tHM_PFU
Clock to Mux (M0,M1) Input Hold Time
-0.05
—
-0.06
—
-0.06
—
ns
tSUD_PFU
Clock to D Input Setup Time
0.12
—
0.14
—
0.16
—
ns
tHD_PFU
Clock to D Input Hold time
-0.03
—
-0.03
—
-0.04
—
ns
tCK2Q_PFU
Clock to Q Delay, D-type Register Configuration
—
0.36
—
0.44
—
0.51
ns
tLE2Q_PFU
Clock to Q Delay Latch Configuration
—
0.48
—
0.58
—
0.68
ns
tLD2Q_PFU
D to Q Throughput Delay when Latch is Enabled
—
0.50
—
0.60
—
0.69
ns
PFU Dual Port Memory Mode Timing
tCORAM_PFU
Clock to Output
—
0.36
—
0.44
—
0.51
ns
tSUDATA_PFU
Data Setup Time
-0.20
—
-0.24
—
-0.28
—
ns
tHDATA_PFU
Data Hold Time
0.26
—
0.31
—
0.36
—
ns
tSUADDR_PFU
Address Setup Time
-0.51
—
-0.62
—
-0.72
—
ns
tHADDR_PFU
Address Hold Time
0.64
—
0.77
—
0.90
—
ns
tSUWREN_PFU
Write/Read Enable Setup Time
-0.24
—
-0.29
—
-0.34
—
ns
tHWREN_PFU
Write/Read Enable Hold Time
0.30
—
0.36
—
0.42
—
ns
PIC Timing
PIO Input/Output Buffer Timing
tIN_PIO
Input Buffer Delay
—
0.56
—
0.67
—
0.78
ns
tOUT_PIO
Output Buffer Delay
—
1.92
—
2.31
—
2.69
ns
IOLOGIC Input/Output Timing
tSUI_PIO
Input Register Setup Time (Data Before Clock)
0.90
—
1.08
—
1.26
—
ns
tHI_PIO
Input Register Hold Time (Data after Clock)
0.62
—
0.74
—
0.87
—
ns
tCOO_PIO
Output Register Clock to Output Delay
—
0.33
—
0.40
—
0.46
ns
tSUCE_PIO
Input Register Clock Enable Setup Time
-0.10
—
-0.12
—
-0.14
—
ns
tHCE_PIO
Input Register Clock Enable Hold Time
0.12
—
0.14
—
0.17
—
ns
tSULSR_PIO
Set/Reset Setup Time
0.18
—
0.21
—
0.25
—
ns
tHLSR_PIO
Set/Reset Hold Time
-0.15
—
-0.18
—
-0.21
—
ns
EBR Timing
tCO_EBR
Clock to Output from Address or Data
—
3.64
—
4.37
—
5.10
ns
tCOO_EBR
Clock to Output from EBR output Register
—
0.74
—
0.88
—
1.03
ns
tSUDATA_EBR
Setup Data to EBR Memory
-0.29
—
-0.35
—
-0.41
—
ns
tHDATA_EBR
Hold Data to EBR Memory
0.37
—
0.44
—
0.52
—
ns
tSUADDR_EBR
Setup Address to EBR Memory
-0.29
—
-0.35
—
-0.41
—
ns
tHADDR_EBR
Hold Address to EBR Memory
0.37
—
0.45
—
0.52
—
ns
tSUWREN_EBR
Setup Write/Read Enable to EBR Memory
-0.18
—
-0.22
—
-0.26
—
ns
tHWREN_EBR
Hold Write/Read Enable to EBR Memory
0.23
—
0.28
—
0.33
—
ns