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STR910FAM32 数据表(PDF) 75 Page - STMicroelectronics |
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STR910FAM32 数据表(HTML) 75 Page - STMicroelectronics |
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75 / 99 page ![]() STR91xFAx32 STR91xFAx42 STR91xFAx44 Electrical characteristics 75/99 Mux write Figure 19. Mux write diagram EMI_CSxn EMI_A[23:16] Address Data EMI_AD[15:0] EMI_WRLn EMI_WRHn t WAS t WP t WCR t WDS EMI_ALE Address t AAH t AAS t AW Table 34. Mux write times Symbol Parameter Value Min Max tWCR WRn to CSn inactive (tBCLK/2) - 2ns (tBCLK/2) + 2ns tWAS Write Address Setup Time (WSTWEN + 1/2) x tBCLK - 2.5 ns (WSTWEN + 1/2) x tBCLK + 2 ns tWDS Write Data Setup Time ((WSTWEN - ALE_LENGTH) x tBCLK) - 2 ns ((WSTWEN - ALE_LENGTH) x tBCLK) + 1 ns tWP Write Pulse Width ((WSTWR-WSTWEN + 1) x tBCLK) - 1 ns ((WSTWR-WSTWEN + 1) x tBCLK) + 1.5 ns tAW ALE pulse width (ALE_LENGTH x tBCLK )- 3.5 ns (ALE_LENGTH x tBCLK ) tAAS Address to ALE setup time (ALE_LENGTH x tBCLK )- 3.5 ns (ALE_LENGTH x tBCLK ) tAAH Address to ALE hold time (tBCLK/2) - 1 ns (tBCLK/2) + 2 ns |
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