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參數(shù)資料
| 型號： | MSM5416272 |
| 廠商： | OKI SEMICONDUCTOR CO., LTD. |
| 英文描述： | 262,144-Word ×16-Bit Multiport DRAM(256k字×16位多端口動(dòng)態(tài)RAM) |
| 中文描述： | 262,144字× 16位多端口內(nèi)存（256k字× 16位多端口動(dòng)態(tài)RAM）的 |
| 文件頁數(shù)： | 32/37頁 |
| 文件大小： | 366K |
| 代理商： | MSM5416272 |
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Semiconductor
MSM5416272
32/37
Block Write:
RAS
falling edge ---
CAS
=
TRG
= "H", DSF = "L"
CAS
falling edge --- DSF = "H"
Block write allows for the data in the color register to be written into 8 consecutive column
address locations, starting from a selected column address in a selected row.
The block write operation can be selectively controlled on an I/O basis, and a column mask
capability is also available. This function is implemented as lower byte and upper byte. During
a block write cycle, the 3 least significant column address locations (A0C, A1C and A2C) are
internally controlled, and only the 6 most significant column addresses (A3C - A8C) are latched
at the falling edge of
CAS
.
1) No mask block write:
WE
"high" at the falling edge of
RAS
The data on 16 DQ pins is cleared by the data of the color register.
2) Masked block write:
WE
"low" at the falling edge of
RAS
The mask data is the same as that of a RAM write cycle. (new mask and persistent mask)
1
1
*
*
1
*
*
1
D
8 Column
￥
8 DQ (Lower Byte)
Note : Location "*" can not be loaded.
Color Register
I/O Mask
Column Mask
11001110
11111010
10010011
Lower Byte
Bit 0
Bit 15
Upper Byte
01110011
01101011
00111100
1
1
*
*
1
*
*
1
0
0
*
*
0
*
*
0
0
0
*
*
0
*
*
0
1
1
*
*
1
*
*
1
*
*
*
*
*
*
*
*
1
1
*
*
1
*
*
1
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
1
1
1
1
*
*
*
*
1
1
1
1
*
*
*
*
*
*
*
*
*
*
*
*
0
0
0
0
*
*
*
*
*
*
*
*
*
*
*
*
1
1
1
1
*
*
*
*
1
1
1
1
*
*
Column 7
Column 6
Column 5
Column 4
Column 3
Column 2
Column 1
Column 0
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
8 Column
￥
8 DQ (Upper Byte)
Example of Block Write
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MSM5416273 | 262,144-Word ×16-Bit Multiport DRAM(256k字×16位多端口動(dòng)態(tài)RAM) |
| MSM5416282 | 262,144-Word ×16-Bit Multiport DRAM(256k字×16位多端口動(dòng)態(tài)RAM) |
| MSM5416283 | 262,144-Word ×16-Bit Multiport DRAM(256k字×16位多端口動(dòng)態(tài)RAM) |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MSM5416273-50G3-K | 制造商:ROHM Semiconductor 功能描述:DUE TO FLOOD DAMAGE TO TESTERS |
| MSM5416273-50GS-K | 制造商:ROHM Semiconductor 功能描述: 制造商:OK International 功能描述:256K X 16 VIDEO DRAM, 50 ns, PDSO64 |
| MSM541627360GSK | 制造商:OK International 功能描述: |
| MSM5416273-60GS-K | 制造商:ROHM Semiconductor 功能描述: |
| MSM5416283-50G3-K | 制造商:OKI Semiconductor 功能描述:OKIMSM5416283-50G3-K MULTIPORT DRAM |
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