參數(shù)資料
型號： WED9LC6816V1612BC
廠商： WHITE ELECTRONIC DESIGNS CORP
元件分類： 存儲器
英文描述： SPECIALTY MEMORY CIRCUIT, PBGA153
封裝： 14 X 22 MM, MO-163, BGA-153
文件頁數(shù)： 3/26頁
文件大?。?/td> 324K
代理商： WED9LC6816V1612BC
WED9LC6816V
11
White Electronic Designs Corporation (602) 437-1520 www.whiteedc.com
White Electronic Designs
September, 2003
Rev. 1
White Electronic Designs Corp. reserves the right to change products or specications without notice.
SDRAM CURRENT STATE TRUTH TABLE (CONT.)
Current
State
Command
Action
Notes
SDCE#
SDRAS#
SDCAS#
SDWE#
A12 & A13
(BA)
A11-A0
Description
Read
with Auto
Precharge
L
OP Code
Mode Register Set
ILLEGAL
L
H
X
Auto or Self Refresh
ILLEGAL
L
H
L
X
Precharge
ILLEGAL
2
L
H
BA
Row Address
Bank Activate
ILLEGAL
2
L
H
L
BA
Column
Write
ILLEGAL
L
H
L
H
BA
Column
Read
ILLEGAL
L
H
L
X
Burst Termination
ILLEGAL
L
H
X
No Operation
Continue the Burst
H
X
Device Deselect
Continue the Burst
Write
with Auto
Precharge
L
OP Code
Mode Register Set
ILLEGAL
L
H
X
Auto or Self Refresh
ILLEGAL
L
H
L
X
Precharge
ILLEGAL
2
L
H
BA
Row Address
Bank Activate
ILLEGAL
2
L
H
L
BA
Column
Write
ILLEGAL
L
H
L
H
BA
Column
Read
ILLEGAL
L
H
L
X
Burst Termination
ILLEGAL
L
H
X
No Operation
Continue the Burst
H
X
Device Deselect
Continue the Burst
Precharging
L
OP Code
Mode Register Set
ILLEGAL
L
H
X
Auto or Self Refresh
ILLEGAL
L
H
L
X
Precharge
No Operation; Bank(s) idle after tRP
L
H
BA
Row Address
Bank Activate
ILLEGAL
2
L
H
L
BA
Column
Write w/o Precharge
ILLEGAL
2
L
H
L
H
BA
Column
Read w/o Precharge
ILLEGAL
20
L
H
L
X
Burst Termination
No Operation; Bank(s) idle after tRP
L
H
X
No Operation
No Operation; Bank(s) idle after tRP
H
X
Device Deselect
No Operation; Bank(s) idle after tRP
Row
Activating
L
OP Code
Mode Register Set
ILLEGAL
L
H
X
Auto or Self Refresh
ILLEGAL
L
H
L
X
Precharge
ILLEGAL
2
L
H
BA
Row Address
Bank Activate
ILLEGAL
2
L
H
L
BA
Column
Write
ILLEGAL
2
L
H
L
H
BA
Column
Read
ILLEGAL
2
L
H
L
X
Burst Termination
No Operation; Row active after tRCD
L
H
X
No Operation
No Operation; Row active after tRCD
H
X
Device Deselect
No Operation; Row active after tRCD
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WED9LC6816V2012BC 制造商:未知廠家 制造商全稱:未知廠家 功能描述:256K X 32 SSRAM/ 4M X 32 SDRAM
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