
40MX and 42MX FPGA Families
1-42
v6.0
Table 30
A40MX04 Timing Characteristics (Nominal 5.0V Operation)
(Worst-Case Commercial Conditions, V
CC
= 4.75V, T
J
= 70°C)
‘–3’ Speed
‘–2’ Speed
‘–1’ Speed
‘Std’ Speed
‘–F’ Speed
Units
Parameter Description
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Max.
Logic Module Propagation Delays
PD1
Single Module
1.2
1.4
1.6
1.9
2.7
ns
t
PD2
Dual-Module Macros
2.3
3.1
3.5
4.1
5.7
ns
t
CO
Sequential Clock-to-Q
1.2
1.4
1.6
1.9
2.7
ns
t
GO
Latch G-to-Q
1.2
1.4
1.6
1.9
2.7
ns
t
RS
Logic Module Predicted Routing Delays
1
Flip-Flop (Latch) Reset-to-Q
1.2
1.4
1.6
1.9
2.7
ns
t
RD1
FO=1 Routing Delay
1.2
1.6
1.8
2.1
3.0
ns
t
RD2
FO=2 Routing Delay
1.9
2.2
2.5
2.9
4.1
ns
t
RD3
FO=3 Routing Delay
2.4
2.8
3.2
3.7
5.2
ns
t
RD4
FO=4 Routing Delay
2.9
3.4
3.9
4.5
6.3
ns
t
RD8
Logic Module Sequential Timing
2
FO=8 Routing Delay
5.0
5.8
6.6
7.8
10.9
ns
t
SUD
t
HD3
Flip-Flop (Latch) Data Input Set-Up
3.1
3.5
4.0
4.7
6.6
ns
Flip-Flop (Latch) Data Input Hold
0.0
0.0
0.0
0.0
0.0
ns
t
SUENA
Flip-Flop (Latch) Enable Set-Up
3.1
3.5
4.0
4.7
6.6
ns
t
HENA
Flip-Flop (Latch) Enable Hold
0.0
0.0
0.0
0.0
0.0
ns
t
WCLKA
Flip-Flop (Latch) Clock Active
Pulse Width
3.3
3.8
4.3
5.0
7.0
ns
t
WASYN
Flip-Flop (Latch)
Asynchronous Pulse Width
3.3
3.8
4.3
5.0
7.0
ns
t
A
Flip-Flop Clock Input Period
4.8
5.6
6.3
7.5
10.4
ns
f
MAX
Flip-Flop (Latch) Clock Frequency
(FO = 128)
181
167
154
134
80
MHz
Input Module Propagation Delays
t
INYH
Pad-to-Y HIGH
0.7
0.8
0.9
1.1
1.5
ns
t
INYL
Pad-to-Y LOW
0.6
0.7
0.8
1.0
1.3
ns
Notes:
1. Routing delays are for typical designs across worst-case operating conditions. These parameters should be used for estimating
device performance. Post-route timing analysis or simulation is required to determine actual performance.
2. Set-up times assume fanout of 3. Further testing information can be obtained from the Timer utility.
3. The hold time for the DFME1A macro may be greater than 0 ns. Use the Timer utility from the Designer software to check the hold
time for this macro.
4. Delays based on 35 pF loading.