Differential SSTL-2
tPI
530
818
857
912
1094
ps
tPCOUT
251
382
400
426
511
ps
Differential SSTL-18
tPI
569
898
941
1001
1201
ps
tPCOUT
290
462
484
515
618
ps
Differential SSTL-18
tPI
569
898
941
1001
1201
ps
tPCOUT
290
462
484
515
618
ps
1.8-V differential HSTL
tPI
569
898
941
1001
1201
ps
tPCOUT
290
462
484
515
618
ps
1.8-V differential HSTL
tPI
569
898
941
1001
1201
ps
tPCOUT
290
462
484
515
618
ps
1.5-V differential HSTL
tPI
587
993
1041
1107
1329
ps
tPCOUT
308
557
584
621
746
ps
1.5-V differential HSTL
tPI
587
993
1041
1107
1329
ps
tPCOUT
308
557
584
621
746
ps
(1)
These I/O standards are only supported on DQS pins.
(2)
This column refers to –3 speed grades for EP2SGX30, EP2SGX60, and EP2SGX90 devices.
(3)
This column refers to –3 speed grades for EP2SGX130 devices.
Table 4–85. Stratix II GX I/O Input Delay for Row Pins (Part 1 of 3)
I/O Standard
Parameter
Fast Corner
Industrial/
Commercial
-3 Speed
-3 Speed
-4 Speed
Grade
-5 Speed
Grade
Unit
LVTTL
tPI
749
1287
1350
1435
1723
ps
tPCOUT
410
760
798
848
1018
ps
2.5 V
tPI
761
1273
1335
1419
1704
ps
tPCOUT
422
746
783
832
999
ps
1.8 V
tPI
827
1427
1497
1591
1911
ps
tPCOUT
488
900
945
1004
1206
ps
1.5 V
tPI
830
1498
1571
1671
2006
ps
tPCOUT
491
971
1019
1084
1301
ps
Table 4–84. Stratix II GX I/O Input Delay for Column Pins (Part 3 of 3)
I/O Standard
Parameter
Fast Corner
Industrial/
Commercial
-3 Speed
Grade (2)
-3 Speed
Grade (3)
-4 Speed
Grade
-5 Speed
Grade
Unit