参数资料
型号: W948D2FBJX5E
厂商: Winbond Electronics
文件页数: 28/60页
文件大小: 0K
描述: IC LPDDR SDRAM 256MBIT 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: 256M(8Mx32)
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
W948D6FB / W948D2FB
256Mb Mobile LPDDR
7.5.1 Read Command
CK
CK
CKE
CS
RAS
CAS
WE
A0-An
A10
BA0,BA1
(High)
CA
Enable AP
AP
Disable AP
BA
= Don't Care
BA=BANK Address CA=Coulmn Address AP=Auto
Precharge
The basic Read timing parameters for DQs are shown in following figure; they apply to all Read operations.
7.5.2 Basic Read Timing Parameters
t CK
t CK
t CH
t CL
CK
CK
t DQSCK
t DQSCK
DQS
tACmax
t RPRE
t DQSQmax
t AC
t RPST
t HZ
DQ
t LZ
DO n
DO n+1
DO n+2
DO n+3
t QH
t QH
DQS
tACmin
t DQSCK
t RPRE
t AC
t DQSCK
t DQSQmax
t RPST
t HZ
DQ
t LZ
DO n
t QH
DO n+1
DO n+2
DO n+3
t QH
1)DO n=Data Out from column n
= Don,t Care
2)All DQ are vaild tAC after the CK edge.
All DQ are valid tDQSQ after the DQS edge, regardless of tAC
Publication Release Date : Oct, 15, 2012
- 28 -
Revision : A01-004
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