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STR910FAM32 数据表(PDF) 74 Page - STMicroelectronics |
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STR910FAM32 数据表(HTML) 74 Page - STMicroelectronics |
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74 / 99 page  Electrical characteristics STR91xFAx32 STR91xFAx42 STR91xFAx44 74/99 Table 32. EMI non-mux write operation Non-mux read Figure 18. Non-mux bus read timings Symbol Parameter Value Min Max tWCR WRn to CSn inactive (tBCLK/2) - 2 ns (tBCLK/2) + 2 ns tWAS Write Address Setup Time ((WSTWEN + 1/2) x tBCLK ) - 2 ns ((WSTWEN + 1/2) x tBCLK) + 1 ns tWDS Write Data Setup Time ((WSTWEN + 1/2) x tBCLK ) - 5 ns ((WSTWEN + 1/2) x tBCLK) tWP Write Pulse Width (WSTWR-WSTWEN + 1) x tBCLK - 1 ns (WSTWR-WSTWEN + 1) x tBCLK + 1.5 ns EMI_CSxn EMI_A[15:0] Address Data EMI_D[7:0] EMI_RDn t RAS t RP t RDH t RAH t RCR t RDS Table 33. EMI read operation Symbol Parameter Value Min Max tRCR Read to CSn inactive 0 1.5 ns tRAS Read Address Setup Time ((WSTOEN) x tBCLK)- 1.5 ns (WSTOEN) x tBCLK tRDS Read Data Setup Time 12.5 - tRDH Read Data Hold Time 0- tRP Read Pulse Width ((WSTRD-WSTOEN+1) x tBCLK)- 0.5 ns ((WSTRD-WSTOEN+1) x tBCLK)+ 2 ns |
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