em636165 Etron Technology Inc., em636165 Datasheet - Page 38

• Manufacturer Part Number: em636165
• Description: 1m X 16 Bit Synchronous Dram Sdram
• Manufacturer: Etron Technology Inc.

Figure 12.1. Random Row Write (Interleaving Banks)
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CLK
CS#
RAS#
CAS#
WE#
A11
A10
DQM
CKE
A0-A9
DQ
Activate
Cammand
Bank A
High
Hi-Z
* t
RAx
RAx
T0 T1 T2 T3 T4 T5 T6 T7 T8 T9 T10
WR
t
RCD
(Burst Length=8, CAS# Latency=2)
> t
t
CK
Write
Command
Bank A
DAx0
WR
CAx
(min.)
DAx1 DAx2 DAx3 DAx4 DAx5 DAx6 DAx7 DBx0 DBx1 DBx2 DBx3 DBx4 DBx5 DBx6 DBx7 DAy0 DAy1 DAy2 DAy3 DAy4
Activate
Command
Bank B
RBx
RBx
Write
Command
Bank B
t
WR*
CBx
38
Precharge
Command
Bank A
T11 T12 T13 T14 T15 T16 T17 T18 T19 T20 T21 T22
t
RP
Activate
Command
Bank A
RAy
RAy
Write
Command
Bank A
t
WR*
CAy
Rev. 3.4
EM636165
Precharge
Command
Bank B
“H” or “L”
Apr. 2008