A42MX16-PQ208A Datasheet, PDF (32/78 Pages) Actel Corporation – 40MX and 42MX Automotive FPGA Families

40MX and 42MX Automotive FPGA Families
Timing Characteristics
The timing numbers in the datasheet represent sample timing characteristics of the devices. Refer to the Timer tool in
the Designer software for design-specific timing information.
Table 1-9 • A40MX02 Timing Characteristics (Nominal 5.0V Operation)
Worst-Case Automotive Conditions, V_CC = 4.75V, T_J = 125°C
Std. Speed
Parameter
Logic Module Propagation Delays¹
Description
Min.
Max.
Units
t_PD1
Single Module
t_PD2
Dual-Module Macros
t_CO
Sequential Clock-to-Q
t_GO
Latch G-to-Q
t_RS
Flip-Flop (Latch) Reset-to-Q
Logic Module Predicted Routing Delays¹
2.2
ns
4.7
ns
2.2
ns
2.2
ns
2.2
ns
t_RD1
FO=1 Routing Delay
t_RD2
FO=2 Routing Delay
t_RD3
FO=3 Routing Delay
t_RD4
FO=4 Routing Delay
t_RD8
FO=8 Routing Delay
Logic Module Sequential Timing²
2.3
ns
3.2
ns
4.2
ns
5.1
ns
8.8
ns
t_SUD
Flip-Flop (Latch) Data Input Set-Up
t_HD³
Flip-Flop (Latch) Data Input Hold
t_SUENA
Flip-Flop (Latch) Enable Set-Up
t_HENA
Flip-Flop (Latch) Enable Hold
t_WCLKA
Flip-Flop (Latch) Clock Active Pulse
t_WASYN
Flip-Flop (Latch)
t_A
Flip-Flop Clock Input Period
f_MAX
Flip-Flop (Latch) Clock Frequency
Input Module Propagation Delays
5.4
ns
0.0
ns
5.4
ns
0.0
ns
5.8
ns
5.8
ns
8.7
ns
116
MHz
t_INYH
Pad-to-Y HIGH
t_INYL
Pad-to-Y LOW
Input Module Predicted Routing Delays¹
1.3
ns
1.2
ns
t_IRD1
t_IRD2
t_IRD3
t_IRD4
t_IRD8
Notes:
FO=1 Routing Delay
FO=2 Routing Delay
FO=3 Routing Delay
FO=4 Routing Delay
FO=8 Routing Delay
3.7
ns
4.6
ns
5.6
ns
6.5
ns
10.2
ns
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. Setup times assume a fanout of 3. Further testing information can be obtained from the Timer tool.
3. The hold time for the DFME1A macro may be greater than 0 ns. Use the Timer tool in Designer to check the hold time for this
macro.
4. Delays based on 35 pF loading.
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