DC Characteristics and Timing Specifications
Table 5–19. M4K Block Internal Timing Microparameters (Part 3 of 3)
–6 Speed Grade (1) –7 Speed Grade (2) –8 Speed Grade (3)
Parameter
Unit
Min
Max
Min
Max
Min
Max
TM4KCLR
191
—
—
—
244
217
—
—
244
244
—
—
ps
ps
Notes to Table 5–19:
(1) For the –6 speed grades, the minimum timing is for the commercial temperature grade. The –7 speed grade devices
offer the automotive temperature grade. The –8 speed grade devices offer the industrial temperature grade.
(2) For each parameter of the –7 speed grade columns, the value in the first row represents the minimum timing
parameter for automotive devices. The second row represents the minimum timing parameter for commercial
devices.
(3) For each parameter of the –8 speed grade columns, the value in the first row represents the minimum timing
parameter for industrial devices. The second row represents the minimum timing parameter for commercial
devices.
Cyclone II Clock Timing Parameters
Refer to Tables 5–20 through 5–34 for Cyclone II clock timing parameters.
Table 5–20. Cyclone II Clock Timing Parameters
Symbol
Parameter
tCIN
Delay from clock pad to I/O input register
Delay from clock pad to I/O output register
Delay from PLL inclkpad to I/O input register
Delay from PLL inclkpad to I/O output register
tCOUT
tPLLCIN
tPLLCOUT
EP2C5/A Clock Timing Parameters
Tables 5–21 and 5–22 show the clock timing parameters for EP2C5/A
devices.
Table 5–21. EP2C5/A Column Pins Global Clock Timing Parameters (Part 1 of 2)
Fast Corner
–7 Speed
Grade
(1)
–7 Speed
Grade
(2)
–6 Speed
Grade
–8 Speed
Grade
Parameter
Unit
Industrial/
Commercial
Automotive
tCIN
1.283
1.343
1.358
2.329
2.363
0.076
2.484
2.516
0.038
2.688
2.717
0.042
2.688
2.717
0.052
ns
ns
ns
tCOUT
1.297
tPLLCIN
–0.188
–0.201
Altera Corporation
February 2008
5–23
Cyclone II Device Handbook, Volume 1
ALTERA [ ALTERA CORPORATION ]
