AX500-PQ208I Datasheet, PDF (69/262 Pages) Microsemi Corporation – Axcelerator Family FPGAs

Timing Model and Waveforms
Axcelerator Family FPGAs
A, B, D, FCI
Y, FCO
GND
Y, FCO
VCCA
50% 50%
VCCA
50%
GND
50%
t_PD, t_PDC
t_PD, t_PDC
VCCA
50%
GND
50%
t_PD, t_PDC
t_PD, t_PDC
Figure 2-28 • C-Cell Timing Model and Waveforms
Timing Characteristics
Table 2-62 • C-Cell
Worst-Case Commercial Conditions VCCA = 1.425 V, VCCI = 3.0 V, T_J = 70°C
–2 Speed
–1 Speed
Std Speed
Parameter
Description
Min. Max. Min. Max. Min. Max. Units
C-Cell Propagation Delays
t_PD
Any input to output Y
0.74
0.84
t_PDC
Any input to carry chain output (FCO)
0.57
0.64
t_PDB
Any input through DB when one input is used
0.95
1.09
t_CCY
Input to carry chain (FCI) to Y
0.61
0.69
t_CC
Input to carry chain (FCI) to carry chain output
0.08
0.09
(FCO)
0.99 ns
0.76 ns
1.28 ns
0.82 ns
0.11 ns
Revision 18
2- 55