Ac timing characteristics – 3.3v operation at40klv, At40k/at40klv series fpga – Rainbow Electronics AT40K40LV User Manual
Page 33
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AT40K/AT40KLV Series FPGA
0896C–FPGA–04/02
AC Timing Characteristics – 3.3V Operation AT40KLV
Delays are based on fixed loads and are described in the notes.
Maximum times based on worst case: V
CC
= 3.00V, temperature = 70
°C
Minimum times based on best case: V
CC
= 3.60V, temperature = 0
°C
Maximum delays are the average of t
PDLH
and t
PDHL
.
Cell Function
Parameter
Path
-3
Units
Notes
Core
2-input Gate
t
PD
(Maximum)
x/y -> x/y
2.9
ns
1 unit load
3-input Gate
t
PD
(Maximum)
x/y/z -> x/y
2.8
ns
1 unit load
3-input Gate
t
PD
(Maximum)
x/y/w -> x/y
3.4
ns
1 unit load
4-input Gate
t
PD
(Maximum)
x/y/w/z -> x/y
3.4
ns
1 unit load
Fast Carry
t
PD
(Maximum)
y -> y
2.3
ns
1 unit load
Fast Carry
t
PD
(Maximum)
x -> y
2.9
ns
1 unit load
Fast Carry
t
PD
(Maximum)
y -> x
3.0
ns
1 unit load
Fast Carry
t
PD
(Maximum)
x -> x
2.3
ns
1 unit load
Fast Carry
t
PD
(Maximum)
w -> y
3.4
ns
1 unit load
Fast Carry
t
PD
(Maximum)
w -> x
3.4
ns
1 unit load
Fast Carry
t
PD
(Maximum)
z -> y
3.4
ns
1 unit load
Fast Carry
t
PD
(Maximum)
z -> x
2.4
ns
1 unit load
DFF
t
PD
(Maximum)
q -> x/y
2.8
ns
1 unit load
DFF
t
PD
(Maximum)
R -> x/y
3.2
ns
1 unit load
DFF
t
PD
(Maximum)
S -> x/y
3.0
ns
1 unit load
DFF
t
PD
(Maximum)
q -> w
2.7
ns
Incremental -> L
t
PD
(Maximum)
x/y -> L
2.4
ns
1 unit load
Local Output Enable
t
PZX
(Maximum)
oe -> L
2.8
ns
1 unit load
Local Output Enable
t
PXZ
(Maximum)
oe -> L
2.4
ns