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A14100A-RQ208C 数据表(PDF) 29 Page - Actel Corporation |
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A14100A-RQ208C 数据表(HTML) 29 Page - Actel Corporation |
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29 / 68 page ![]() 1-203 Accelerator Series FPGAs – ACT ™ 3 Family A1425A, A14V25A Timing Characteristics (Worst-Case Commercial Conditions, VCC = 4.75 V, TJ = 70°C) 1 Notes: 1. VCC = 3.0 V for 3.3V specifications. 2. For dual-module macros, use tPD + tRD1 + tPDn , tCO + tRD1 + tPDn or tPD1 + tRD1 + tSUD , whichever is appropriate. 3. 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. Logic Module Propagation Delays2 ‘–3’ Speed ‘–2’ Speed ‘–1’ Speed ‘Std’ Speed 3.3V Speed1 Parameter Description Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Units tPD Internal Array Module 2.0 2.3 2.6 3.0 3.9 ns tCO Sequential Clock to Q 2.0 2.3 2.6 3.0 3.9 ns tCLR Asynchronous Clear to Q 2.0 2.3 2.6 3.0 3.9 ns Predicted Routing Delays3 tRD1 FO=1 Routing Delay 0.9 1.0 1.1 1.3 1.7 ns tRD2 FO=2 Routing Delay 1.2 1.4 1.6 1.8 2.4 ns tRD3 FO=3 Routing Delay 1.4 1.6 1.8 2.1 2.8 ns tRD4 FO=4 Routing Delay 1.7 1.9 2.2 2.5 3.3 ns tRD8 FO=8 Routing Delay 2.8 3.2 3.6 4.2 5.5 ns Logic Module Sequential Timing tSUD Flip-Flop Data Input Setup 0.5 0.6 0.7 0.8 0.8 ns tHD Flip-Flop Data Input Hold 0.0 0.0 0.0 0.0 0.0 ns tSUD Latch Data Input Setup 0.5 0.6 0.7 0.8 0.8 ns tHD Latch Data Input Hold 0.0 0.0 0.0 0.0 0.0 ns tWASYN Asynchronous Pulse Width 1.9 2.4 3.2 3.8 4.8 ns tWCLKA Flip-Flop Clock Pulse Width 1.9 2.4 3.2 3.8 4.8 ns tA Flip-Flop Clock Input Period 4.0 5.0 6.8 8.0 10.0 ns fMAX Flip-Flop Clock Frequency 250 200 150 125 100 MHz |
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