EP2S90F1020C5 Datasheet, PDF (181/768 Pages) Altera Corporation – Stratix II Device Handbook, Volume 1

DC & Switching Characteristics
Table 5–38. IOE Internal Timing Microparameters
Symbol
Parameter
-3 Speed
Grade (1)
Min
(3)
Max
-3 Speed
Grade (2)
Min
(3)
Max
-4 Speed
Grade
Min
(4)
Max
-5 Speed
Grade
Unit
Min
(3)
Max
t_{S U}
IOE input and output 122
128
140
163
ps
register setup time
140
before clock
t_H
IOE input and output 72
75
82
96
ps
register hold time after
82
clock
t_{C O}
IOE input and output 101 169 101 177 97 194 101 226 ps
register clock-to-
101
output delay
t_{P IN 2C O M BO UT _R} Row input pin to IOE 410 760 410 798 391 873 410 1,018 ps
combinational output
410
t_{P I N 2 C O M B O U T _ C} Column input pin to
IOE combinational
output
428 787 428 825 408 904 428 1,054 ps
428
t_{C O M B I N 2 P I N _ R}
Row IOE data input to 1,101 2,026 1,101 2,127 1,049 2,329 1,101 2,439 ps
combinational output
1,101
pin
t_{C O M B I N 2 P I N _ C}
Column IOE data
991 1,854 991 1,946 944 2,131 991 2,246 ps
input to combinational
991
output pin
t_{C L R}
Minimum clear pulse 200
210
229
268
ps
width
229
t_{P R E}
Minimum preset pulse 200
210
229
268
ps
width
229
t_{C L K L}
Minimum clock low
600
630
690
804
ps
time
690
t_{C L K H}
Minimum clock high 600
630
690
804
ps
time
690
Notes to Table 5–38:
(1) These numbers apply to -3 speed grade EP2S15, EP2S30, EP2S60, and EP2S90 devices.
(2) These numbers apply to -3 speed grade EP2S130 and EP2S180 devices.
(3) For the -3 and -5 speed grades, the minimum timing is for the commercial temperature grade. Only -4 speed grade
devices offer the industrial temperature grade.
(4) For the -4 speed grade, the first number is the minimum timing parameter for industrial devices. The second
number is the minimum timing parameter for commercial devices.
Altera Corporation
April 2011
5–35
Stratix II Device Handbook, Volume 1