EM638165 Etron Technology Inc., EM638165 Datasheet - Page 55

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

Figure 17.1. Auto Precharge after Write Burst
Preliminary
A0~A9,A11
BA0,1
RAS#
CAS#
DQM
CKE
CS#
WE#
CLK
A10
DQ
High
Hi-Z
Command
Activate
Bank A
RAx
RAx
T0
Command
DAx0 DAx1 DAx2 DAx3
Bank A
CAx
Write
t
CK1
T 1 T2
Command
Activate
Bank B
RBx
RBx
T3
Auto Precharge
T4
Write with
Command
Bank B
CBx
DBx0 DBx1 DBx2 DBx3
T5
T6
T7
Auto Precharge
T8
Write with
Command
Bank A
DAy0
CAy
T9
55
DAy1DAy2
T10
Command
Activate
Bank B
RBy
RBy
(Burst Length=4, CAS# Latency=1)
T 11
DAy3 DBy0
Auto Precharge
T12 T13 T14 T15 T16 T17 T18 T19 T20 T21 T22
Write with
Command
Bank B
CBy
DBy1 DBy2 DBy3
Command
Rev 0.6
RAz
RAz
Activate
Bank A
Auto Precharge
EM638165
Write with
Command
Bank A
DAz0 DAz0
CAz
Feb. 2001
DAz0DAz0