A1425A-PL84C Datasheet, PDF (34/90 Pages) Microsemi Corporation – Up to 10,000 Gate Array Equivalent Gates (up to 25,000 equivalent PLD Gates)

Detailed Specifications
A1425A, A14V25A Timing Characteristics
Table 2-22 • A1425A, A14V25A Worst-Case Commercial Conditions, VCC = 4.75 V, T_J = 70°C¹
Logic Module Propagation Delays² –3 Speed³ –2 Speed³ –1 Speed Std. Speed 3.3 V Speed¹ Units
Parameter/Description
Min. Max. Min. Max. Min. Max. Min. Max. Min. Max.
t_PD Internal Array Module
t_CO Sequential Clock to Q
t_CLR Asynchronous Clear to Q
Predicted Routing Delays⁴
2.0
2.3
2.6
3.0
3.9 ns
2.0
2.3
2.6
3.0
3.9 ns
2.0
2.3
2.6
3.0
3.9 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 Timing
0.9
1.0
1.1
1.3
1.7 ns
1.2
1.4
1.6
1.8
2.4 ns
1.4
1.6
1.8
2.1
2.8 ns
1.7
1.9
2.2
2.5
3.3 ns
2.8
3.2
3.6
4.2
5.5 ns
t_SUD Flip-Flop Data Input Setup
0.5
0.6
0.7
0.8
0.8
ns
t_HD Flip-Flop Data Input Hold
0.0
0.0
0.0
0.0
0.0
ns
t_SUD Latch Data Input Setup
0.5
0.6
0.7
0.8
0.8
ns
t_HD Latch Data Input Hold
0.0
0.0
0.0
0.0
0.0
ns
t_WASYN Asynchronous Pulse Width 1.9
2.4
3.2
3.8
4.8
ns
t_WCLKA Flip-Flop Clock Pulse Width 1.9
2.4
3.2
3.8
4.8
ns
t_A
Flip-Flop Clock Input Period 4.0
5.0
6.8
8.0
10.0
ns
f_MAX Flip-Flop Clock Frequency
250
200
150
125
100 MHz
Notes:
1. VCC = 3.0 V for 3.3 V specifications.
2. For dual-module macros, use t_PD + t_RD1 + t_PDn + t_CO + t_RD1 + t_PDn or t_PD1 + t_RD1 + t_SUD, whichever is appropriate.
3. The –2 and –3 speed grades have been discontinued. Refer to PDN 0104, PDN 0203, PDN 0604, and PDN 1004 at
http://www.microsemi.com/soc/support/notifications/default.aspx#pdn.
4. 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.
2-26
Revision 3