EM638165 Etron Technology Inc., EM638165 Datasheet - Page 41

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

Figure 12.2. Random Row Write (Interleaving Banks)
Preliminary
A0~A9,A11
BA0,1
RAS#
CAS#
DQM
CKE
CS#
WE#
* t
CLK
A10
DQ
WR
High
Hi-Z
Command
> t
Activate
Bank A
RAx
RAx
WR
T0
(Burst Length=8, CAS# Latency=2)
t
RCD
(min.)
Command
T 1 T2
t
Bank A
CK2
Write
CAx
DAx0 DAx1 DAx2 DAx3 DAx4DAx5
T3
T4
T5
T6
T7
Command
Activate
DAx6 DAx7 DBx0 DBx1
Bank B
RBx
RBx
T8
T9
Command
41
t
Bank B
WR*
Write
CBx
Precharge
Command
T10 T 11 T12 T13 T14 T15 T16 T17 T18 T19 T20 T21 T22
Bank A
t
DBx2 DBx3 DBx4 DBx5 DBx6
RP
Command
Activate
Bank A
RAy
RAy
DBx7
Command
Rev 0.6
t
Bank A
CAy
WR*
DAy0 DAy1DAy2
Write
EM638165
Precharge
Command
Bank B
Feb. 2001
DAy3
DAy4