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数据搜索系统，热门电子元器件搜索 |
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STR71XF 数据表(PDF) 57 Page - STMicroelectronics |
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STR71XF 数据表(HTML) 57 Page - STMicroelectronics |
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57 / 78 page  STR71xF Electrical parameters 57/78 See Figure 25, Figure 26, Figure 27 and Figure 28 for related timing diagrams. 1. Data based on characterisation results, not tested in production. See Figure 29, Figure 30, Figure 31 and Figure 32 for related timing diagrams. 1. Data based on characterisation results, not tested in production. Table 34. EMI read operation Symbol Parameter Test Conditions Value Unit Min1) Typ Max1) tRCR Read to CSn Removal Time MCLK=50 MHz 4 wait states 50 pf load on all pins 19 tMCLK 21 ns tRP Read Pulse Time 98 tC 100 ns tRDS Read Data Setup Time 22 ns tRDH Read Data Hold Time 0 ns tRAS Read Address Setup Time 27 1.5*tM CLK 33 ns tRAH Read Address Hold Time 0.65 2 ns tRAT Read Address Turnaround Time 1.9 3.25 ns tRRT RDn Turnaround Time 20 tMCLK 21 ns Table 35. EMI write operation Symbol Parameter Test conditions Value Unit Min1) Typ Max1) tWCR WEn to CSn Removal Time MCLK=50 MHz 3 wait states 50 pf load on all pins 20 tMCLK 22.5 ns tWP Write Pulse Time 77.5 tC 80 ns tWDS1 Write Data Setup Time 1 97 tC + tMCLK 100 ns tWDS2 Write Data Setup Time 2 77 tC 80 ns tWDH Write Data Hold Time 20 tMCLK 23 ns tWAS Write Address Setup Time 27 1.5*tMCLK 33 ns tWAH Write Address Hold Time 0.6 3 ns tWAT Write Address Turnaround Time 1.75 4.1 ns tWWT WEn Turnaround Time 20 tMCLK 23 ns |
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