DC & Switching Characteristics
Table 5–38. IOE Internal Timing Microparameters
-3 Speed
-3 Speed
Grade (2)
-4 Speed
Grade
-5 Speed
Grade
Grade (1)
Symbol
Parameter
Unit
Min
Min
(3)
Min
Min
Max
Max
Max
Max
(3)
(4)
(3)
tSU
IOE input and output
register setup time
before clock
122
128
140
140
163
ps
ps
ps
tH
IOE input and output
register hold time after
clock
72
75
82
82
96
tCO
IOE input and output
register clock-to-
output delay
101
169
101
177
97
101
194
101
226
tPIN2COMBOUT_R Row input pin to IOE
combinational output
410
428
760
787
410
428
798
825
391
410
873
904
410 1,018 ps
428 1,054 ps
tPIN2COMBOUT_C Column input pin to
IOE combinational
408
428
output
tCOMBIN2PIN_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
pin
1,101
tCOMBIN2PIN_C
Column IOE data
input to combinational
output pin
991 1,854 991 1,946 944 2,131 991 2,246 ps
991
tCLR
Minimum clear pulse
width
200
200
600
600
210
210
630
630
229
229
268
268
804
804
ps
ps
ps
ps
tPRE
Minimum preset pulse
width
229
229
tCLKL
tCLKH
Minimum clock low
time
690
690
Minimum clock high
time
690
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
May 2007
5–35
Stratix II Device Handbook, Volume 1
ALTERA [ ALTERA CORPORATION ]
