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CY7C1481BV25 데이터시트(PDF) 15 Page - Cypress Semiconductor |
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CY7C1481BV25 데이터시트(HTML) 15 Page - Cypress Semiconductor |
15 / 21 page CY7C1481BV25 Document Number: 001-74847 Rev. *B Page 15 of 21 Figure 5. Read/Write Cycle Timing [21, 22, 23] Timing Diagrams (continued) tCYC t CL CLK tADH tADS ADDRESS t CH tAH tAS A2 tCEH tCES Single WRITE D(A3) A3 A4 BURST READ Back-to-Back READs High-Z Q(A2) Q(A4) Q(A4+1) Q(A4+2) Q(A4+3) t WEH t WES t OEHZ tDH tDS tCDV tOELZ A1 A5 A6 D(A5) D(A6) Q(A1) Back-to-Back WRITEs DON’T CARE UNDEFINED ADSP ADSC BWE, BW X CE ADV OE Data In (D) Data Out (Q) Notes 21. On this diagram, when CE is LOW: CE1 is LOW, CE2 is HIGH and CE3 is LOW. When CE is HIGH: CE1 is HIGH, CE2 is LOW, or CE3 is HIGH. 22. The data bus (Q) remains in High Z following a write cycle, unless a new read access is initiated by ADSP or ADSC. 23. GW is HIGH. |
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