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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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W949D6KB 데이터시트(PDF) 19 Page - Winbond |
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W949D6KB 데이터시트(HTML) 19 Page - Winbond |
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19 / 60 page  W949D6KB / W949D2KB Publication Release Date: Dec. 11, 2014 Revision: A01-002 - 19 - 7.5.2 Status Register Read Timing Diagram NOP CL=3 0 0 1 tRP tSRR tSRC DQ:Reg out = Don’t Care PCHA, or PCH CK CK Command BA1,BA0 An~A0 DQS DQ NOP NOP NOP NOP MRS CMD READ CMD Notes: 1. SRR can only be issued after power-up sequence is complete. 2. SRR can only be issued with all banks precharged. 3. SRR CL is unchanged from value in the mode register. 4. SRR BL is fixed at 2. 5. tSRR = 2 (min). 6. tSRC = CL + 1; (min time between read to next valid command) 7. No commands other than NOP and DES are allowed between the SRR and the READ. |
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