参数资料
型号: W949D2CBJX5E
厂商: Winbond Electronics
文件页数: 33/60页
文件大小: 0K
描述: IC LPDDR SDRAM 512MBIT 90VFBGA
标准包装: 240
格式 - 存储器: RAM
存储器类型: 移动 LPDDR SDRAM
存储容量: 512M(16M x 32)
速度: 200MHz
接口: 并联
电源电压: 1.7 V ~ 1.95 V
工作温度: -25°C ~ 85°C
封装/外壳: 90-TFBGA
供应商设备封装: 90-VFBGA(8x13)
包装: 托盘
W949D6CB / W949D2CB
512Mb Mobile LPDDR
CK
CK
Command
READ
NOP
PRE
NOP
NOP
NOP
Address
BA,Col n
CL=2
Bank
(a or all)
t RP
BA,Row
DQS
DQ
DO n
CL=3
DQS
DQ
1) DO n=Data Out from column n
DO n
= Don't Care
2) Cases shown are either uninterrupted of 4, or interrupted bursts of 8 or 16
3) Shown with nominal tAC,tDQSCK and tDQSQ
4) Precharge may be applied at (BL/2) tCK after the READ command.
5) Note that Precharge may not be issued before tRAS ns after the ACTIVE command for applicable banks.
6) The ACTIVE command may be applied if tRC has been met.
7.5.11 Burst Terminate of Read
The BURST TERMINATE command is used to truncate read bursts (with Auto Pre-charge disabled). The most
recently registered READ command prior to the BURST TERMINATE command will be truncated. Note that the
BURST TERMINATE command is not bank specific.
This command should not be used to terminate write bursts.
CK
CK
CKE
(High)
CS
RAS
CAS
WE
A0-An
BA0,BA1
= Don't Care
7.6 Write
The WRITE command is used to initiate a burst write access to an active row, with a burst length as set in the Mode
Register. BA0 and BA1 select the bank, and the address inputs select the starting column location. The value of A10
determines whether or not Auto Pre-charge is used. If Auto Pre-charge is selected, the row being accessed will be
pre-charged at the end of the write burst; if Auto Pre-charge is not selected, the row will remain open for subsequent
accesses.
Publication Release Date: Sep, 21, 2011
- 33 -
Revision A01-007
相关PDF资料
PDF描述
W971GG6JB25I IC DDR2 SDRAM 1GBIT 84WBGA
W971GG8JB-25 IC DDR2 SDRAM 1GBIT 60WBGA
W9725G6IB-25 IC DDR2-800 SDRAM 256MB 84-WBGA
W9725G6JB25I IC DDR2 SDRAM 256MBIT 84WBGA
W9725G6KB-25I IC DDR2 SDRAM 256MBIT 84WBGA
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