EM639325TS-5IG Datasheet, PDF (38/47 Pages) Etron Technology, Inc. – 4M x 32 bit Synchronous DRAM (SDRAM)

EtronTech
EM639325
Figure 36. Auto Precharge after Write Burst (Burst Length=4)
CLK
T0 T1 T2 T3 T4 T5 T6 T7 T8 T9 T10 T11 T12 T13 T14 T15 T16 T17 T18 T19 T20 T21 T22
CKE ^High
CS#
Begin Auto
Precharge
Bank B
Begin Auto
Precharge
Bank A
RAS#
CAS#
WE#
BA0,1
A10
RAx
A0-A9, _RAx
A11
DQM
DQ ^Hi-Z
Activate
Command
Bank A
RBx
CAx RBx
CBx
CAy
tDAL
RBy
RBy
CBy
DAx0 DAx1 DAx2 DAx3 DBx0 DBx1 DBx2 DBx3 DAy0 DAy1 DAy2 DAy3
Write
Command
Bank A
Activate
Command
Bank B
Write with
Auto Precharge
Command
Bank B
Write with
Auto Precharge
Command
Bank A
Activate
Command
Bank B
DBy0 DBy1 DBy2 DBy3
Write with
Auto Precharge
Command
Bank B
Don’t Care
Rev. 2.1
38
Aug. /2015