EM638165 Etron Technology Inc., EM638165 Datasheet - Page 56

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

Figure 17.2. Auto Precharge after Write Burst
Preliminary
A0~A9,A11
BA0,1
RAS#
CAS#
DQM
WE#
CKE
CS#
CLK
A10
DQ
High
Hi-Z
Command
Activate
Bank A
RAx
RAx
T0
t
CK2
Command
T 1 T2
Bank A
Write
DAx0 DAx1 DAx2 DAx3
CAx
T3
Command
Activate
Bank B
RBx
RBx
T4
Auto Precharge
T5
Write with
Command
Bank B
DBx0 DBx1 DBx2 DBx3
CBx
T6
T7
T8
Auto Precharge
T9
Write with
Command
Bank A
56
DAy0
CAy
T10 T 11 T12 T13 T14 T15 T16 T17 T18 T19 T20 T21 T22
DAy1 DAy2
(Burst Length=4, CAS# Latency=2)
Command
Activate
Bank B
DAy3
RBy
RBy
Auto Precharge
Write with
Command
Bank B
CBy
DBy0
DBy1 DBy2 DBy3
Command
Activate
Bank A
RAz
RAz
Rev 0.6
Auto Precharge
EM638165
Write with
Command
DAz0 DAz1
Bank A
CAz
DAz2 DAz3
Feb. 2001