
Altera Corporation
97
APEX 20K Programmable Logic Device Family Data Sheet
Tables 79 through 84 describe fMAX LE Timing Microparameters, fMAX ESB Timing Microparameters, fMAX Routing Delays, Minimum Pulse
Width Timing Parameters, External Timing Parameters, and External
Bidirectional Timing Parameters for EP20K300E APEX 20KE devices.
Table 78. EP20K200E External Bidirectional Timing Parameters
Symbol
-1
-2
-3
Unit
Min
Max
Min
Max
Min
Max
tINSU BIDIR
2.81
3.19
3.54
ns
tI N H B ID IR
0.00
ns
tOUT C OBIDIR
2.00
5.12
2.00
5.62
2.00
6.11
ns
tXZ BIDIR
7.51
8.32
8.67
ns
tZX BIDIR
7.51
8.32
8.67
ns
tINSU BIDIRPL L
3.30
3.64
-
ns
tI N H B ID IR P L L
0.00
-
ns
tOUT C OBIDIRP LL
0.50
3.01
0.50
3.36
-
ns
tXZ BIDIRPL L
5.40
6.05
-
ns
tZX BIDIRPL L
5.40
6.05
-
ns
Table 79. EP20K300E fMAX LE Timing Microparameters
Symbol
-1
-2
-3
Unit
Min
Max
Min
Max
Min
Max
tSU
0.16
0.17
0.18
ns
tH
0.31
0.33
0.38
ns
tCO
0.28
0.38
0.51
ns
tLUT
0.79
1.07
1.43
ns