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參數(shù)資料
| 型號： | MB81F643242C |
| 廠商： | Fujitsu Limited |
| 英文描述： | 4 X 512 K X 32 BIT SYNCHRONOUS DYNAMIC RAM |
| 中文描述： | 4 × 512 kX的32位同步動態(tài)隨機存儲器 |
| 文件頁數(shù)： | 18/56頁 |
| 文件大?。?/td> | 1001K |
| 代理商： | MB81F643242C |
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18
MB81F643242C-60/-70/-10
Advanced Info (AE0.1E)
FULL COLUMN BURST AND BURST STOP COMMAND (BST)
The full column burst is an option of burst length and available only at sequential mode of burst type. This full column
burst mode is repeatedly access to the same column. If burst mode reaches end of column address, then it wraps
round to first column address (= 0) and continues to count until interrupted by the news read (READ) /write (WRIT),
precharge (PRE), or burst stop (BST) command. The selection of Auto-precharge option is illegal during the full
column burst operation except write command at BURST READ & SINGLE WRITE mode.
The BST command is applicable to terminate the burst operation. If the BST command is asserted during the burst
mode, its operation is terminated immediately and the internal state moves to Bank Active.
When read mode is interrupted by BST command, the output will be in High-Z.
For the detail rule, please refer to “TIMING DIAGRAM - 8” in section “
I
TIMING DIAGRAMS“.
When write mode is interrupted by BST command, the data to be applied at the same time with BST command will
be ignored.
BURST READ & SINGLE WRITE
The burst read and single write mode provides single word write operation regardless of its burst length. In this
mode, burst read operation does not be affected by this mode.
Burst
Length
Starting Column
Address
A
2
A
1
A
0
Sequential Mode
Interleave
2
X X 0
0 – 1
0 – 1
X X 1
1 – 0
1 – 0
4
X 0 0
0 – 1 – 2 – 3
0 – 1 – 2 – 3
X 0 1
1 – 2 – 3 – 0
1 – 0 – 3 – 2
X 1 0
2 – 3 – 0 – 1
2 – 3 – 0 – 1
X 1 1
3 – 0 – 1 – 2
3 – 2 – 1 – 0
8
0 0 0
0 – 1 – 2 – 3 – 4 – 5 – 6 – 7
0 – 1 – 2 – 3 – 4 – 5 – 6 – 7
0 0 1
1 – 2 – 3 – 4 – 5 – 6 – 7 – 0
1 – 0 – 3 – 2 – 5 – 4 – 7 – 6
0 1 0
2 – 3 – 4 – 5 – 6 – 7 – 0 – 1
2 – 3 – 0 – 1 – 6 – 7 – 4 – 5
0 1 1
3 – 4 – 5 – 6 – 7 – 0 – 1 – 2
3 – 2 – 1 – 0 – 7 – 6 – 5 – 4
1 0 0
4 – 5 – 6 – 7 – 0 – 1 – 2 – 3
4 – 5 – 6 – 7 – 0 – 1 – 2 – 3
1 0 1
5 – 6 – 7 – 0 – 1 – 2 – 3 – 4
5 – 4 – 7 – 6 – 1 – 0 – 3 – 2
1 1 0
6 – 7 – 0 – 1 – 2 – 3 – 4 – 5
6 – 7 – 4 – 5 – 2 – 3 – 0 – 1
1 1 1
7 – 0 – 1 – 2 – 3 – 4 – 5 – 6
7 – 6 – 5 – 4 – 3 – 2 – 1 – 0
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相關代理商/技術參數(shù) |
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| MB81F643242C-10 | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:4 X 512 K X 32 BIT SYNCHRONOUS DYNAMIC RAM |
| MB81F643242C-60 | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:4 X 512 K X 32 BIT SYNCHRONOUS DYNAMIC RAM |
| MB81F643242C-70 | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:4 X 512 K X 32 BIT SYNCHRONOUS DYNAMIC RAM |
| MB81G83222-012 | 制造商:FUG 功能描述:81G83222-012 |
| MB81N261647A22FN | 制造商:Fujitsu 功能描述: |
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