EM636327Q-7 Etron Technology Inc., EM636327Q-7 Datasheet - Page 55

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

Figure 15.2. Interleaved Column Write Cycle
Preliminary
A0~A8
CA S#
RA S#
WE#
DQM
CKE
C S#
CLK
DSF
A 9
BS
DQ
Hi-Z
T0
Command
Activate
Bank A
RAx
RAx
t
T 1
CK2
t
RCD
T2 T3
Command
Bank A
Write
t
DAx0 DAx1 DAx2 DAx3
CAx
RRD
T4
Command
Activate
Bank B
RBw
RBw
T5
T6
Command
Bank B
DBw0 DBw1 DBx0 DBx1
Write
CBw
T7
T8
Command
Bank B
Write
CBx
T9
55
T10 T 11 T12 T13 T14 T 15 T16 T 17 T18 T19 T20 T21 T22
Command
Bank B
DBy0
Write
CBy
(Burst Length=4, CAS# Latency=2)
DBy1 DAy0
Command
Bank A
Write
CAy
DAy1 DBz0
Command
Bank B
CBz
Write
Precharge
Command
Bank A
DBz1 DBz2 DBz3
t
RP
t
Precharge
Command
WR
EM636327
Bank B
t
RP
December
1998