EP2C20F256C8N Datasheet, PDF (137/470 Pages) Altera Corporation – Cyclone II Device Handbook, Volume 1

DC Characteristics and Timing Specifications
I/O Delays
Refer to Tables 5–39 through 5–43 for I/O delays.
Table 5–39. I/O Delay Parameters
Symbol
t_{D I P}
t_{O P}
t_{P C O U T}
t_{P I}
Parameter
Delay from I/O datain to output pad
Delay from I/O output register to output pad
Delay from input pad to I/O dataout to core
Delay from input pad to I/O input register
Table 5–40. Cyclone II I/O Input Delay for Column Pins (Part 1 of 3)
I/O Standard
LVTTL
2.5V
1.8V
1.5V
LVCMOS
SSTL_2_CLASS_I
SSTL_2_CLASS_II
SSTL_18_CLASS_I
SSTL_18_CLASS_II
Fast Corner
Parameter _{Industrial/ Commer}
Automotive -cial
–6
Speed
Grade
–7
Speed
Grade
(1)
–7
Speed
Grade
(2)
–8
Speed
Grade
Unit
t_{P I}
t_{P C O U T}
t_{P I}
t_{P C O U T}
t_{P I}
t_{P C O U T}
t_{P I}
t_{P C O U T}
t_{P I}
t_{P C O U T}
t_{P I}
t_{P C O U T}
t_{P I}
t_{P C O U T}
t_{P I}
t_{P C O U T}
t_{P I}
t_{P C O U T}
581
609 1222 1228 1282 1282 ps
367
385
760 783 854 854 ps
624
654 1192 1238 1283 1283 ps
410
430
730 793 855 855 ps
725
760 1372 1428 1484 1484 ps
511
536
910 983 1056 1056 ps
790
828 1439 1497 1556 1556 ps
576
604
977 1052 1128 1128 ps
581
609 1222 1228 1282 1282 ps
367
385
760 783 854 854 ps
533
558
990 1015 1040 1040 ps
319
334
528 570 612 612 ps
533
558
990 1015 1040 1040 ps
319
334
528 570 612 612 ps
577
605 1027 1035 1045 1045 ps
363
381
565 590 617 617 ps
577
605 1027 1035 1045 1045 ps
363
381
565 590 617 617 ps
Altera Corporation
February 2008
5–33
Cyclone II Device Handbook, Volume 1