EP2S15 Datasheet, PDF (174/238 Pages) Altera Corporation – Stratix II Device Family

Timing Model
Table 5–40. M512 Block Internal Timing Microparameters (Part 2 of 2) Note (1)
Symbol
t_{M 5 1 2 D ATA C O 1}
t_{M 5 1 2 D ATA C O 2}
t_{M 5 1 2 C L K L}
t_{M 5 1 2 C L K H}
t_{M 5 1 2 C L R}
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
Clock-to-output delay
when using output
registers
298 478 298 501 284 548 298 640 ps
298
Clock-to-output delay 2,102 2,345 2,102 2,461 2,003 2,695 2,102 3,141 ps
without output registers
2,102
Minimum clock low time 1,315
1,380
1,512
1,762
ps
1,512
Minimum clock high time 1,315
1,380
1,512
1,762
ps
1,512
Minimum clear pulse
144
151
165
192
ps
width
165
Notes to Table 5–40:
(1) F_MAX of M512 block obtained using the Quartus II software does not necessarily equal to 1/TM512RC.
(2) These numbers apply to -3 speed grade EP2S15, EP2S30, EP2S60, and EP2S90 devices.
(3) These numbers apply to -3 speed grade EP2S130 and EP2S180 devices.
(4) 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.
(5) 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 5–41. M4K Block Internal Timing Microparameters (Part 1 of 2) Note (1)
Symbol
t_{M 4 K R C}
t_{M 4 K W E R E S U}
t_{M 4 K W E R E H}
t_{M 4 K B E S U}
t_{M 4 K B E H}
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
Synchronous read cycle 1,462 2,240 1,462 2,351 1,393 2,575 1,462 3,000 ps
time
1,462
Write or read enable
22
23
25
29
ps
setup time before clock
25
Write or read enable
203
213
233
272
ps
hold time after clock
233
Byte enable setup time 22
23
25
29
ps
before clock
25
Byte enable hold time 203
213
233
272
ps
after clock
233
5–38
Stratix II Device Handbook, Volume 1
Altera Corporation
May 2007