参数资料
型号: MT48H32M16LFB4-75B IT:C
厂商: Micron Technology Inc
文件页数: 30/85页
文件大小: 0K
描述: IC SDRAM 512MB 54VFBGA
标准包装: 1,000
格式 - 存储器: RAM
存储器类型: 移动 SDRAM
存储容量: 512M(32Mx16)
速度: 133MHz
接口: 并联
电源电压: 1.7 V ~ 1.95 V
工作温度: -40°C ~ 85°C
封装/外壳: 54-VFBGA
供应商设备封装: 54-VFBGA(8x8)
包装: 散装
512Mb: 32 Meg x 16, 16 Meg x 32 Mobile SDRAM
Commands
WRITE
The WRITE command is used to initiate a burst write access to an active row. The values
on the BA0 and BA1 inputs select the bank; the address provided selects the starting col-
umn location. The value on input A10 determines whether auto precharge is used. If au-
to precharge is selected, the row being accessed is precharged at the end of the write
burst; if auto precharge is not selected, the row remains open for subsequent accesses.
Input data appearing on the DQ is written to the memory array, subject to the DQM in-
put logic level appearing coincident with the data. If a given DQM signal is registered
LOW, the corresponding data is written to memory; if the DQM signal is registered
HIGH, the corresponding data inputs are ignored and a WRITE is not executed to that
byte/column location.
Figure 10: WRITE Command
CLK
CKE
CS#
RAS#
CAS#
WE#
Address
A10 1
BA0, BA1
HIGH
Column address
EN AP
DIS AP
Bank address
Valid address
Don’t Care
Note:
1. EN AP = enable auto precharge, DIS AP = disable auto precharge.
PDF: 09005aef8459c827
512mb_mobile_sdram_y67m_at.pdf – Rev. B 3/11 EN
30
Micron Technology, Inc. reserves the right to change products or specifications without notice.
? 2011 Micron Technology, Inc. All rights reserved.
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