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AS4C2M32S 数据表(PDF) 21 Page - Alliance Semiconductor Corporation |
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AS4C2M32S 数据表(HTML) 21 Page - Alliance Semiconductor Corporation |
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21 / 53 page ![]() AS4C2M32S Confidential 21 Rev. 3.0 Dec. /2012 Timing Waveforms Figure 19. AC Parameters for Write Timing (Burst Length=4) T0 T1 T2 Don’t Care tCH Activate Command Bank A T3 T4 T5 T6 T7 T8 T9 T10 T11 T12 T13 T14 T15 T16 T17 T18 T19 T20 T21 T22 tCL Begin Auto Precharge Bank B RAx RBx RAy RAx CAx RBx CBx RAy CAy Ax0 Ax1 Ax2 Ax3 Bx0 Bx1 Bx2 Bx3 Ay0 Ay1 Ay2 Ay3 tRCD tRC tDAL tWR Write with Auto Precharge Command Bank A Activate Command Bank B Write with Auto Precharge Command Bank B Activate Command Bank A Write Command Bank A Precharge Command Bank A tIS tIS tIH tIH tIS Begin Auto Precharge Bank A tIS tIH Hi-Z CLK CS# CKE RAS# CAS# WE# BA0,1 A10 A0-A9 DQM DQ |
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