™
A C T
1 S e r i e s F P G A s
A C T 1 T i m i n g C h a r a c t e r i s t i c s
1
(Wo r s t -C a s e C o m m e r c ia l C o n d it io n s , V
Logic Module Propagation Delays
Parameter Description
= 4 . 7 5 V, T = 7 0 °C )
J
C C
‘–3’ Speed ‘–2’ Speed ‘–1’ Speed ‘Std’ Speed 3.3 V Speed
Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Units
t
t
t
t
t
Single Module
2.9
6.8
2.9
2.9
2.9
3.4
7.8
3.4
3.4
3.4
3.8
8.8
3.8
3.8
3.8
4.5
10.4
4.5
6.5
15.1
6.5
ns
ns
ns
ns
ns
PD1
PD2
CO
Dual Module Macros
Sequential Clk to Q
Latch G to Q
4.5
6.5
GO
RS
Flip-Flop (Latch) Reset to Q
4.5
6.5
2
Predicted Routing Delays
t
t
t
t
t
FO=1 Routing Delay
FO=2 Routing Delay
FO=3 Routing Delay
FO=4 Routing Delay
FO=8 Routing Delay
0.9
1.4
2.1
3.1
6.6
1.1
1.7
2.5
3.6
7.7
1.2
1.9
2.8
4.1
8.7
1.4
2.2
2.0
3.2
ns
ns
ns
ns
ns
RD1
RD2
RD3
RD4
RD8
3.3
4.8
4.8
7.0
10.2
14.8
3
Sequential Timing Characteristics
t
t
t
t
t
Flip-Flop (Latch) Data Input Setup
Flip-Flop (Latch) Data Input Hold
Flip-Flop (Latch) Enable Setup
Flip-Flop (Latch) Enable Hold
5.5
0.0
5.5
0.0
6.4
0.0
6.4
0.0
7.2
0.0
7.2
0.0
8.5
0.0
8.5
0.0
10.0
0.0
ns
ns
ns
ns
SUD
4
HD
10.0
0.0
SUENA
HENA
Flip-Flop (Latch) Clock Active Pulse
Width
WCLKA
6.8
8.0
9.0
10.5
9.8
ns
t
Flip-Flop (Latch)
WASYN
Asynchronous Pulse Width
6.8
8.0
9.0
10.5
22.3
9.8
ns
ns
t
f
Flip-Flop Clock Input Period
14.2
16.7
18.9
20.0
A
Flip-Flop (Latch) Clock
Frequency (FO = 128)
MAX
70
60
53
45
50
MHz
Notes:
1.
V
= 3.0 V for 3.3V specifications.
CC
2. 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 worst-case performance. Post-route timing is based
on actual routing delay measurements performed on the device prior to shipment.
3. Setup times assume fanout of 3. Further testing information can be obtained from the DirectTime Analyzer utility.
4. The Hold Time for the DFME1A macro may be greater than 0 ns. Use the Designer 3.0 or later Timer to check the Hold Time for this macro.
1 -2 9 7
ACTEL [ Actel Corporation ]
