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W949D6KB Scheda tecnica(PDF) 19 Page - Winbond

Il numero della parte W949D6KB
Spiegazioni elettronici  Power Down Mode
PDF  60 Pages
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Produttore elettronici  WINBOND [Winbond]
Homepage  http://www.winbond.com
Logo WINBOND - Winbond

W949D6KB Scheda tecnica(HTML) 19 Page - Winbond

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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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