
Altera Corporation
87
APEX 20K Programmable Logic Device Family Data Sheet
Table 56. EP20K30E Minimum Pulse Width Timing Parameters
Symbol
-1
-2
-3
Unit
Min
Max
Min
Max
Min
Max
tCH
0.55
0.78
1.15
ns
tCL
0.55
0.78
1.15
ns
tCLRP
0.22
0.31
0.46
ns
tPREP
0.22
0.31
0.46
ns
tESBCH
0.55
0.78
1.15
ns
tESBCL
0.55
0.78
1.15
ns
tESBWP
1.43
2.01
2.97
ns
tESBRP
1.15
1.62
2.39
ns
Table 57. EP20K30E External Timing Parameters
Symbol
-1
-2
-3
Unit
Min
Max
Min
Max
Min
Max
tINSU
2.02
2.13
2.24
ns
tINH
0.00
ns
tOUTCO
2.00
4.88
2.00
5.36
2.00
5.88
ns
tINSUPLL
2.11
2.23
-
ns
tINHPLL
0.00
-
ns
tOUTCOPLL
0.50
2.60
0.50
2.88
-
ns
Table 58. EP20K30E External Bidirectional Timing Parameters
Symbol
-1
-2
-3
Unit
Min
Max
Min
Max
Min
Max
tINSUBIDIR
1.85
1.77
1.54
ns
tINHBIDIR
0.00
ns
tOUTCOBIDIR
2.00
4.88
2.00
5.36
2.00
5.88
ns
tXZBIDIR
7.48
8.46
9.83
ns
tZXBIDIR
7.48
8.46
9.83
ns
tINSUBIDIRPLL
4.12
4.24
-
ns
tINHBIDIRPLL
0.00
-
ns
tOUTCOBIDIRPLL
0.50
2.60
0.50
2.88
-
ns
tXZBIDIRPLL
5.21
5.99
-
ns
tZXBIDIRPLL
5.21
5.99
-
ns