EP2S180F1508I4 Datasheet, PDF (173/238 Pages) Altera Corporation – Section I. Stratix II Device Family Data Sheet

DC & Switching Characteristics
Table 5–39. DSP Block Internal Timing Microparameters (Part 2 of 2)
Symbol
t_{C L K L}
t_{C L K H}
Parameter
Minimum clock low
time
Minimum clock high
time
-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
1,190
1,249
1,368
1,594
ps
1,368
1,190
1,249
1,368
1,594
ps
1,368
Notes to Table 5–39:
(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.
Table 5–40. M512 Block Internal Timing Microparameters (Part 1 of 2) Note (1)
Symbol
Parameter
-3 Speed
Grade (2)
Min
(4)
Max
-3 Speed
Grade (3)
Min
(4)
Max
-4 Speed
Grade
Min
(5)
Max
-5 Speed
Grade
Unit
Min
(4)
Max
t_{M 5 1 2 R C}
Synchronous read cycle 2,089 2,318 2,089 2.433 1,989 2,664 2,089 3,104 ps
time
2,089
t_{M 5 1 2 W E R E S U} Write or read enable
22
23
25
29
ps
setup time before clock
25
t_{M 5 1 2 W E R E H} Write or read enable
203
213
233
272
ps
hold time after clock
233
t_{M 5 1 2 DATA S U} Data setup time before
22
23
25
29
ps
clock
25
t_{M 5 1 2 D ATA H}
Data hold time after
203
213
233
272
ps
clock
233
t_{M 5 1 2 WA D D R S U} Write address setup
22
23
25
29
ps
time before clock
25
t_{M 5 1 2 WA D D R H} Write address hold time 203
213
233
272
ps
after clock
233
t_{M 5 1 2 R A D D R S U} Read address setup
22
23
25
29
ps
time before clock
25
t_{M 5 1 2 R A D D R H} Read address hold time 203
213
233
272
ps
after clock
233
Altera Corporation
April 2011
5–37
Stratix II Device Handbook, Volume 1