EM638165 Etron Technology Inc., EM638165 Datasheet - Page 67

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

Figure 23. Full Page Random Column Write
Preliminary
A0~A9,A11
BA0,1
RAS#
CAS#
DQM
CKE
CS#
WE#
CLK
A10
DQ
T0
Command
Activate
RAx
Bank A
RAx
T 1 T2
t
t
CK2
RRD
Command
Activate
Bank B
RBx
RBx CAx
T3
Command
Bank A
t
DAx0 DBx0DAy0
RCD
Write
T4
Command
Bank B
Write
CBx
T5
Command
Bank A
Write
CAy
T6
DAy1 DBy0 DBy1 DAz0 DAz1 DAz2 DBz0 DBz1
T7
Command
Bank B
CBy
Write
T8
T9
Command
67
Bank A
Write
CAz
T10 T 11 T12 T13 T14 T15 T16 T17 T18 T19 T20 T21 T22
(Burst Length=Full Page, CAS# Latency=2)
CBz
Command
Bank B
Write
(Precharge Temination)
DBz2
Command Bank B
t
Precharge
WR
Write Data
is masked
t
RP
Command
Activate
RBw
Bank B
Rev 0.6
RBw
EM638165
Feb. 2001