DC & Switching Characteristics
Table 5–39. DSP Block Internal Timing Microparameters (Part 2 of 2)
-3 Speed
Grade (1)
-3 Speed
Grade (2)
-4 Speed
Grade
-5 Speed
Grade
Symbol
Parameter
Unit
Min
Max
(3)
Min
Max
(3)
Min
(4)
Min
(3)
Max
Max
tCLKL
tCLKH
Minimum clock low
time
1,190
1,249
1,368
1,368
1,594
ps
ps
Minimum clock high
time
1,190
1,249
1,368
1,368
1,594
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)
-3 Speed
Grade (2)
-3 Speed
Grade (3)
-4 Speed
Grade
-5 Speed
Grade
Symbol
Parameter
Unit
Min
(4)
Min
(4)
Min
(5)
Min
(4)
Max
Max
Max
Max
tM512RC
Synchronous read cycle 2,089 2,318 2,089 2.433 1,989 2,664 2,089 3,104 ps
time
2,089
tM512WERESU
tM512WEREH
tM512DATASU
tM512DATAH
Write or read enable
setup time before clock
22
203
22
23
213
23
25
25
29
272
29
ps
ps
ps
ps
ps
ps
ps
ps
Write or read enable
hold time after clock
233
233
Data setup time before
clock
25
25
Data hold time after
clock
203
22
213
23
233
233
272
29
tM512WADDRSU Write address setup
time before clock
25
25
tM512WADDRH Write address hold time
after clock
203
22
213
23
233
233
272
29
tM512RADDRSU Read address setup
time before clock
25
25
tM512RADDRH
Read address hold time
after clock
203
213
233
233
272
Altera Corporation
April 2011
5–37
Stratix II Device Handbook, Volume 1
ALTERA [ ALTERA CORPORATION ]
