参数资料
型号: W949D2CBJX5E
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: 3/60页
文件大小: 1160K
代理商: W949D2CBJX5E
W949D6CB / W949D2CB
512Mb Mobile LPDDR
Publication Release Date: Jun, 14, 2011
- 11 -
Revision A01-006
6.1.1 Initialization Flow Diagram
1
VDD and VDDQ Ramp: CKE must be held high
2
Apply stable clocks
3
Wait at least 200us with NOP or DESELECT on command bus
4
PRECHARGE ALL
5
Assert NOP or DESELCT for
tRP time
6
Issue two AUTO REFRESH commands each followed by
NOP or DESELECT commands for
tRFC time
7
Configure Mode Register
8
Assert NOP or DESELECT for
tMRD time
9
Configure Extended Mode Register
10
Assert NOP or DESELECT for
tMRD time
11
LPDDR SDRAM is ready for any valid command
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相关代理商/技术参数
参数描述
W949D2CBJX5ETR 制造商:Winbond Electronics Corp 功能描述:512M MDDR, X32, 200MHZ
W949D2CBJX5I 制造商:Winbond Electronics Corp 功能描述:DRAM Chip Mobile LPDDR SDRAM 512M-Bit 16Mx32 1.8V 90-Pin VFBGA
W949D2CBJX5I TR 制造商:Winbond Electronics Corp 功能描述:512M MDDR, X32, 200MHZ, INDUST
W949D2CBJX6E 制造商:Winbond Electronics Corp 功能描述:DRAM Chip Mobile LPDDR SDRAM 512M-Bit 16Mx32 1.8V 90-Pin VFBGA
W949D2CBJX6ETR 制造商:Winbond Electronics Corp 功能描述:512M MDDR, X32, 166MHZ, 65NM