EM638165 Etron Technology Inc., EM638165 Datasheet - Page 44

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

Figure 13.2. Read and Write Cycle
Preliminary
A0~A9,A11
BA0,1
RAS#
CAS#
DQM
CKE
CS#
WE#
CLK
A10
DQ
Hi-Z
T0
Command
Activate
Bank A
RAx
RAx
T 1 T2
t
CK2
Command
Bank A
CAx
Read
T3
T4
Ax0
T5
Ax1
T6
Ax2
T7
(Burst Length=4, CAS# Latency=2)
Ax3
T8
T9
Command
Bank A
44
Write
DAy0 DAy1
CAy
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
Rev 0.6
Az0
EM638165
Az1
is Masked with a
The Read Data
Two Clock
Latency
Feb. 2001
Az3