参数资料
型号: W947D2HBJX5E
厂商: Winbond Electronics
文件页数: 18/60页
文件大小: 0K
描述: IC LPDDR SDRAM 128MBIT 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: 128M(4Mx32)
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
W947D6HB / W947D2HB
128Mb Mobile LPDDR
6.7.2 Status Register Read Timing Diagram
CK
t RP
t SRR
t SRC
CK
Command
CMD
NOP
MRS
NOP
READ
NOP
NOP
NOP
CMD
BA1,BA0
An – A0
01
0
CL=3
DQS
DQ
PCHA, or PCH
DQ:Reg out
= Don’t Care
Notes :
1. SRR can only be issued after power-up sequence is complete.
2. SRR can only be issued with all banks precharged.
3. SRR CL is unchanged from value in the mode register.
4. SRR BL is fixed at 2.
5. tSRR = 2 (min).
6. tSRC = CL + 1; (min time between read to next valid command)
7. No commands other than NOP and DES are allowed between the SRR and the READ.
Publication Release Date:Jun,17, 2011
- 18 -
Revision A01-003
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