EM638165 Etron Technology Inc., EM638165 Datasheet - Page 35

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

Figure 10.2. 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=2)
Command
Activate
RBw
Bank A
RBw
t
CK2
T 1 T2
Command
Bank B
Write
CBw
DBw0 DBw1 DBw2 DBw3 DBx0 DBx1 DBy0 DBy1
T3
T4
T5
T6
Command
Bank B
Write
CBx
T7
T8
Command
Bank B
Write
CBy
T9
35
T10 T 11 T12 T13 T14 T15 T16 T17 T18 T19 T20 T21 T22
DBy2 DBy3
Precharge
Command
Bank B
Command
Activate
Bank B
RBz
RBz
Command
Bank B
DBz0 DBz1 DBz2 DBz3
CBz
Write
Rev 0.6
EM638165
Feb. 2001