EM636327Q-7 Etron Technology Inc., EM636327Q-7 Datasheet - Page 54

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

Figure 15.1. Interleaved Column Write Cycle
Preliminary
A0~ A8
CA S#
RA S#
DSF
DQM
CKE
CS#
WE#
CLK
A 9
BS
DQ
Hi-Z
T0 T 1
Command
Activate
Bank A
RAx
RAx
t
RCD
t
CK1
Command
DAx0 DAx1 DAx2 DAx3
Bank A
t
Write
CAx
RRD
T2 T3
Command
Activate
Bank B
RBw
RBw
T4 T5
Command
Bank B
DBw0 DBw1 DBx0 DBx1
CBw
Write
T6
T7
Command
Bank B
Write
CBx
T8 T9
Command
Bank B
DBy0
CBy
Write
54
T10 T 11 T12 T13 T14 T 15 T16 T 17 T18 T19 T20 T21 T22
DBy1 DAy0
(Burst Length=4, CAS# Latency=1)
Command
Bank A
Write
CAy
DAy1
Precharge
Command
Bank A
t
Command
RP
DBz0
Bank B
CBz
Write
DBz1 DBz2 DBz3
t
WR
Precharge
Command
EM636327
Bank B
t
RP
December
1998