EtronTech
EM638325
2Mega x 32 SDRAM
Figure 10.1. Random Column Write (Page within same Bank)
(Burst Length=4, CAS# Latency=1)
T0 T 1 T2 T3 T4 T5 T6 T7 T8 T9 T10 T 11 T12 T13 T14 T15 T16 T17 T18 T19 T20 T21 T22
CLK
CKE
tCK1
CS#
RAS#
CAS#
WE#
BS0,1
A10
RBz
RBw
CBw
CBy
RBw
RBz
CBz
A0~A9
DQM
CBx
Hi-Z
DQ
DBy1 DBy2 DBy3
DBw0DBw1DBw2 DBw3DBx0 DBx1
DBz1 DBz2 DBz3
DBy0
DBz0
Activate
Command
Bank A
Write
Command
Bank B
Precharge
Command
Bank B
Write
Command
Bank A
Write
Command
Bank B
Write
Command
Bank B
Activate
Command
Bank B
Preliminary
35
Rev 1.4
Oct. 2005