EM638165 Etron Technology Inc., EM638165 Datasheet - Page 36

• Manufacturer Part Number: EM638165
• Description: 4Mega x 16 Synchronous DRAM (SDRAM)
• Manufacturer: Etron Technology Inc.

Figure 10.3. Random Column Write (Page within same Bank)
Preliminary
A0~A9,A11
BA0,1
RAS#
CAS#
DQM
CKE
CS#
WE #
CLK
A10
DQ
Hi-Z
T0
(Burst Length=4, CAS# Latency=3)
Command
Activate
Bank A
RBw
RBw
t
CK3
T 1 T2
T3
Command
Bank B
DBw0 DBw1DBw2 DBw3 DBx0 DBx1 DBy0 DBy1 DBy2 DBy3
CBw
Write
T4
T5
T6
T7
Command
Bank B
CBx
Write
T8
T9
Command
Bank B
36
Write
CBy
T10 T 11 T12 T13 T14 T15 T16 T17 T18 T19 T20 T21 T22
Precharge
Command
Bank B
Command
Activate
Bank B
Rev 0.6
RBz
RBz
EM638165
Command
Bank B
DBz0 DBz1
Feb. 2001
Write
CBz
DBz2