参数资料
型号: W949D2CBJX6E
厂商: WINBOND ELECTRONICS CORP
元件分类: DRAM
英文描述: 16M X 32 DDR DRAM, 5 ns, PBGA90
封装: 8 X 13 MM, 0.80 MM PITCH, HALOGEN FREE AND LEAD FREE, VFBGA-90
文件页数: 9/60页
文件大小: 1160K
代理商: W949D2CBJX6E
W949D6CB / W949D2CB
512Mb Mobile LPDDR
Publication Release Date: Jun, 14, 2011
- 17 -
Revision A01-006
6.7.1 SRR Register (A[n:0] = 0)
Rising Edge of DQ Bus
SRR Register 0
Manufacturer
Identification
Revision
Identification
Refresh
Rate
Reserved(0) Density DT DW
DQ3
DQ2
DQ1
DQ0
Density
DQ13
DQ14
DQ15
DQ12 Device Type
Refresh Rate
DQ10
DQ9
DQ8
0
3
4
7
8
10
11
12
13
15
16
X
0
1
Winbond
LPDDR
Reserved
0
1
Revision ID
Device
Width
16 bits
32 bits
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
128
256
512
1024
2048
Reserved
64
1
0
1
0
1
0
1
0
1
0
1
0
x
Reserved
0.25
Reserved
1
Reserved
(See Note 1)
DQ7:4
DQ11
Note 2 : The refresh rate mulitiplier is based on the menory’s temperature sensor.
Note 3 : Required average periodic refresh interval = tREFI * multiplier
Note 1 : The manufacture’s revision number
starts at ‘0000’ and increments by ‘0001’ each
time a change in the manufacturer’s
specification(AC timings, or feature set), IBIS
(pull up or pull down characteristics), or
process occurs.
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相关代理商/技术参数
参数描述
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