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EM68932DVKB Arkusz danych(PDF) 19 Page - Etron Technology, Inc.

Numer części EM68932DVKB
Szczegółowy opis  4M x 32 Mobile DDR Synchronous DRAM (SDRAM)
PDF  40 Pages
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Producent  ETRON [Etron Technology, Inc.]
Strona internetowa  http://www.etron.com
Logo ETRON - Etron Technology, Inc.

EM68932DVKB Arkusz danych(HTML) 19 Page - Etron Technology, Inc.

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EtronTech
EM68932DVKB
Etron Confidential
19
Rev. 1.0
Aug. 2009
Timing Waveforms
Figure 5. Initialization Waveform Sequence
A10
DM
(High-Z)
DQ,DQS
BA0,1
All
Banks
VDD
VDDQ
CK
CK
CKE
NOP
PRE
ARF
ARF
MRS
MRS
ACT
CODE
CODE
RA
CODE
CODE
RA
BA0=L
BA1=L
BA0=L
BA1=H
BA
tCK
tRP
tRFC
tRFC
tMRD
tMRD
200 µS
Don’t Care
VDD / VDDQ powered up
Clock stable
Load
Mode Reg.
Load
Ext. Mode Reg.
Command
Address
Figure 6. Basic Timing Parameters for Commands
Valid
Valid
Valid
Don’t Care
tIH
tIS
tCK
tCH
tCL
CK
CK
Input
Notes: Input = A0 - A11, BA0,BA1, CKE, CS, RAS, CAS, WE;



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