102
Altera Corporation
APEX 20K Programmable Logic Device Family Data Sheet
Table 91. EP20K400E fMAX Routing Delays
Symbol
-1 Speed Grade
-2 Speed Grade
-3 Speed Grade
Unit
Min
Max
Min
Max
Min
Max
tF1-4
0.25
0.26
ns
tF5-20
1.01
1.12
1.25
ns
tF20+
3.71
3.92
4.17
ns
Table 92. EP20K400E Minimum Pulse Width Timing Parameters
Symbol
-1 Speed Grade
-2 Speed Grade
-3 Speed Grade
Unit
Min
Max
Min
Max
Min
Max
tCH
1.36
2.22
2.35
ns
tCL
1.36
2.26
2.35
ns
tCLRP
0.18
0.19
ns
tPREP
0.18
0.19
ns
tESBCH
1.36
2.26
2.35
ns
tESBCL
1.36
2.26
2.35
ns
tESBWP
1.17
1.38
1.56
ns
tESBRP
0.94
1.09
1.25
ns
Table 93. EP20K400E External Timing Parameters
Symbol
-1 Speed Grade
-2 Speed Grade
-3 Speed Grade
Unit
Min
Max
Min
Max
Min
Max
tINSU
2.51
2.64
2.77
ns
tINH
0.00
ns
tOUTCO
2.00
5.25
2.00
5.79
2.00
6.32
ns
tINSUPLL
3.221
3.38
-
ns
tINHPLL
0.00
-
ns
tOUTCOPLL
0.50
2.25
0.50
2.45
-
ns
