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| 型號： | HYB18T1G800C4F-3 |
| 廠商： | QIMONDA AG |
| 元件分類： | DRAM |
| 英文描述： | 128M X 8 DDR DRAM, 0.45 ns, PBGA60 |
| 封裝： | GREEN, PLASTIC, TFBGA-60 |
| 文件頁數(shù)： | 15/58頁 |
| 文件大?。?/td> | 1898K |
| 代理商： | HYB18T1G800C4F-3 |
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HYB18T1G[40/80/16]0C4F
1-Gbit Double-Data-Rate-Two SDRAM
Internet Data Sheet
Rev. 1.01, 2008-11
22
04212008-66HT-ZLFE
3.3
Extended Mode Register EMR(2)
The Extended Mode Registers EMR(2) and EMR(3) are reserved for future use and must be programmed when setting the
mode register during initialization.
TABLE 12
EMR(2) Programming Extended Mode Register Definition, BA2:0=010B
1) w = write only
2) When DRAM is operated at 85
°C ≤
T
Case ≤ 95°C the extended self refresh rate must be enabled by setting bit A7 to 1 before the self refresh
mode can be entered.
3) If PASR (Partial Array Self Refresh) is enabled, data located in areas of the array beyond the specified location will be lost if self refresh
is entered. Data integrity will be maintained if
t
REF conditions are met and no Self Refresh command is issued.
Field
Bits
Type1)
Description
BA2
16
w
Bank Address
0B
BA2 Bank Address
BA
[15:14]
w
Bank Adress
00B BA MRS
01B BA EMRS(1)
10B BA EMRS(2)
11B BA EMRS(3): Reserved
A
[13:8]
w
Address Bus
000000B A Address bits
SRF
7
w
Address Bus, High Temperature Self Refresh Rate for
T
CASE > 85°C
0B
A7 disable
1B
A7 enable 2)
A
[6:3]
w
Address Bus
0000B A Address bits
DCC
3
Duty Cycle Correction (DCC) is enable when DLL is on
0B
don’t care
1B
don’t care
Partial Self Refresh for 8 banks
PASR [2:0]
w
Address Bus, Partial Array Self Refresh for 8 Banks3)
Note: Only for 1G and 2G components
000B PASR0 Full Array
001B PASR1 Half Array (BA[2:0]=000, 001, 010 & 011)
010B PASR2 Quarter Array (BA[2:0]=000, 001)
011B PASR3 1/8 array (BA[2:0] = 000)
100B PASR4 3/4 array (BA[2:0]= 010, 011, 100, 101, 110 & 111)
101B PASR5 Half array (BA[2:0]=100, 101, 110 & 111)
110B PASR6 Quarter array (BA[2:0]= 110 & 111)
111B PASR7 1/8 array(BA[2:0]=111)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HYB18T256400AF-3.7 | 制造商:Infineon Technologies AG 功能描述:64M X 4 DDR DRAM, 0.5 ns, PBGA60 |
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| HYB18T512400AF-5 | 制造商:Intersil Corporation 功能描述:SDRAM, DDR, 128M x 4, 60 Pin, Plastic, BGA |
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