参数资料
型号: MT48H32M16LFB4-75B IT:C
厂商: Micron Technology Inc
文件页数: 65/85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
PRECHARGE Operation
WRITE with auto precharge interrupted by a WRITE (with or without auto precharge)
A WRITE to bank m will interrupt a WRITE on bank n when registered. The precharge to
bank n will begin after t WR is met, where t WR begins when the WRITE to bank m is reg-
istered. The last valid data WRITE to bank n will be data registered one clock prior to a
WRITE to bank m (see Figure 42 (page 71)).
Figure 35: READ With Auto Precharge Interrupted by a READ
T0
T1
T2
T3
T4
T5
T6
T7
CLK
Command
NOP
READ - AP
Bank n
NOP
READ - AP
Bank m
NOP
NOP
NOP
NOP
Internal
Bank n
Page active
READ with burst of 4
Interrupt burst, precharge
t RP - bank n
Idle
t RP - bank m
states
Bank m
Address
Page active
Bank n,
Col a
READ with burst of 4
Bank m,
Col d
Precharge
DQ
D OUT
a
D OUT
a+1
D OUT
d
D OUT
d+1
CL = 3 (bank n)
CL = 3 (bank m)
Don’t Care
Note:
1. DQM is LOW.
PDF: 09005aef8459c827
512mb_mobile_sdram_y67m_at.pdf – Rev. B 3/11 EN
65
Micron Technology, Inc. reserves the right to change products or specifications without notice.
? 2011 Micron Technology, Inc. All rights reserved.
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