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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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HM5259165B датащи(PDF) 31 Page - Elpida Memory |
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HM5259165B датащи(HTML) 31 Page - Elpida Memory |
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31 / 63 page  HM5259165B/HM5259805B/HM5259405B-75/A6 Data Sheet E0118H10 31 Read with auto precharge to Read command interval 1. Different bank: When some banks are in the active state, the second read command (another bank) is executed. Even when the first read with auto-precharge is a burst read that is not yet finished, the data read by the second command is valid. The internal auto-precharge of one bank starts at the next clock of the second command. Read with Auto Precharge to Read Command Interval (Different bank) CLK Command BS Dout READ A READ out A0 out A1 out B0 out B1 CAS Latency = 3 Burst Length = 4 bank0 Read A bank3 Read Note: Internal auto-precharge starts at the timing indicated by " ". 2. Same bank: The consecutive read command (the same bank) is illegal. Write with auto precharge to Write command interval 1. Different bank: When some banks are in the active state, the second write command (another bank) is executed. In the case of burst writes, the second write command has priority. The internal auto-precharge of one bank starts at the next clock of the second command . Write with Auto Precharge to Write Command Interval (Different bank) CLK Command BS Din WRIT A WRIT in B1 in B2 in B3 in A0 in A1 in B0 Burst Length = 4 bank0 Write A bank3 Write Note: Internal auto-precharge starts at the timing indicated by " ". 2. Same bank: The consecutive write command (the same bank) is illegal. |
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