参数资料
型号: MT42L64M32D1KL-25 IT:A
厂商: Micron Technology Inc
文件页数: 77/164页
文件大小: 0K
描述: IC DDR2 SDRAM 2GBIT 168FBGA
标准包装: 1,000
格式 - 存储器: RAM
存储器类型: 移动 LPDDR2 SDRAM
存储容量: 2G(64M x 32)
速度: 400MHz
接口: 并联
电源电压: 1.14 V ~ 1.3 V
工作温度: -25°C ~ 85°C
封装/外壳: 168-WFBGA
供应商设备封装: 168-FBGA(12x12)
包装: 散装
2Gb: x16, x32 Mobile LPDDR2 SDRAM S4
REFRESH Command
Figure 53: Regular Distributed Refresh Pattern
t REFI
t REFI
0ms
t REFBW
t REFBW
32ms
64ms
96ms
Notes:
1. Compared to repetitive burst REFRESH with subsequent REFRESH pause.
2. As an example, in a 1Gb LPDDR2 device at T C ≤ 85?C, the distributed refresh pattern has
one REFRESH command per 7.8 μ s; the burst refresh pattern has one REFRESH command
per 0.52 μ s, followed by ≈ 30ms without any REFRESH command.
PDF: 09005aef83f3f2eb
2gb_mobile_lpddr2_s4_g69a.pdf – Rev. N 3/12 EN
77
Micron Technology, Inc. reserves the right to change products or specifications without notice.
2010 Micron Technology, Inc. All rights reserved.
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