EM636327Q-7 Etron Technology Inc., EM636327Q-7 Datasheet - Page 56

• Manufacturer Part Number: EM636327Q-7
• Description: 512K x 32 High Speed Synchronous Graphics DRAM(SGRAM)
• Manufacturer: Etron Technology Inc.

Figure 15.3. Interleaved Column Write Cycle
Preliminary
A0 ~ A8
CA S#
RAS#
WE#
DQM
CKE
CS#
CLK
DSF
A 9
BS
DQ
Hi-Z
T0
Command
Activate
Bank A
RAx
RAx
T 1
t
CK3
t
RRD
T2
t
RCD
> t
RRD(min)
T3
Command
Bank A
DAx0 DAx1 DAx2 DAx3
CAx
Write
T4
Command
Activate
Bank B
RBw
RBw
T5
T6
T7
Command
Bank B
DBw0 DBw1 DBx0 DBx1
CBw
Write
T8
T9
Command
Bank B
Write
CBx
56
T10 T 11 T12 T13 T14 T15 T16 T17 T18 T19 T20 T21 T22
(Burst Length=4, CAS# Latency=3)
Command
Bank B
DBy0
CBy
Write
DBy1 DAy0
Command
Bank A
CAy
Write
DAy1 DBz0
Command
Bank B
t
CBz
Write
WR
Precharge
Command
Bank A
DBz1 DBz2 DBz3
t
RP
EM636327
t
Precharge
Command
WR(min)
Bank B
December
1998