EM636327Q-7 Etron Technology Inc., EM636327Q-7 Datasheet - Page 48

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

Figure 13.1. Read and Write Cycle
Preliminary
A0 ~ A8
CA S#
RAS#
DQM
CKE
CS#
WE#
CLK
DSF
A 9
BS
DQ
Hi-Z
T0
Command
Activate
Bank A
RAx
RAx
T 1
t
CK1
Command
Bank A
CAx
Read
T2
Ax0
T3
Ax1
T4
Ax2
T5
Ax3
T6
T7
(Burst Length=4, CAS# Latency=1)
T8
T9
Command
Bank A
Write
CAy
DAy0 DAy1
48
T10 T 11 T12 T13 T14 T15 T16 T17 T18 T19 T20 T21 T22
is Masked with a
The Write Data
Zero Clock
Latency
DAy3
Command
Bank A
CAz
Read
Az0
is Masked with a
Az1
The Read Data
Two Clock
Latency
Az3
EM636327
December
Precharge
Command
Bank B
1998