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参数资料
| 型号： | MT46H128M32LFCM-5AT:A |
| 元件分类： | DRAM |
| 英文描述： | 128M X 32 DDR DRAM, 5 ns, PBGA90 |
| 封装： | 10 X 13 MM, GREEN, PLASTIC, VFBGA-90 |
| 文件页数： | 53/106页 |
| 文件大小： | 3431K |
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SELF REFRESH
The SELF REFRESH command is used to place the device in self refresh mode; self re-
fresh mode is used to retain data in the memory device while the rest of the system is
powered down. When in self refresh mode, the device retains data without external clock-
ing. The SELF REFRESH command is initiated like an AUTO REFRESH command,
except that CKE is disabled (LOW). After the SELF REFRESH command is registered, all
inputs to the device become “Don’t Care” with the exception of CKE, which must re-
main LOW.
Micron recommends that, prior to self refresh entry and immediately upon self refresh
exit, the user perform a burst auto refresh cycle for the number of refresh rows. Alterna-
tively, if a distributed refresh pattern is used, this pattern should be immediately
resumed upon self refresh exit.
DEEP POWER-DOWN
The DEEP POWER-DOWN (DPD) command is used to enter DPD mode, which ach-
ieves maximum power reduction by eliminating the power to the memory array. Data
will not be retained when the device enters DPD mode. The DPD command is the same
as a BURST TERMINATE command with CKE LOW.
Figure 22: DEEP POWER-DOWN Command
CS#
WE#
CAS#
RAS#
CKE
Address
BA0, BA1
CK
CK#
Don’t Care
2Gb: x16, x32 Mobile LPDDR SDRAM
Commands
PDF: 09005aef83a73286
2gb_ddr_mobile_sdram_t69m.pdf - Rev. M 11/10 EN
50
Micron Technology, Inc. reserves the right to change products or specifications without notice.
2009 Micron Technology, Inc. All rights reserved.
相关PDF资料 |
PDF描述 |
|---|---|
| MT46H128M32LFCM-5IT:A | 128M X 32 DDR DRAM, 5 ns, PBGA90 |
| MT46V128M4FN-75E:C | 128M X 4 DDR DRAM, 0.75 ns, PBGA60 |
| MT46V128M4P-75L:C | 128M X 4 DDR DRAM, 0.75 ns, PDSO66 |
| MT46V128M4P-75ZLIT:C | 128M X 4 DDR DRAM, 0.75 ns, PDSO66 |
| MT46V64M4TG-75E | 64M X 4 DDR DRAM, 0.75 ns, PDSO66 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MT46H16M16 | 制造商:MICRON 制造商全称:Micron Technology 功能描述:Mobile Double Data Rate (DDR) SDRAM |
| MT46H16M16LF | 制造商:MICRON 制造商全称:Micron Technology 功能描述:Mobile Double Data Rate (DDR) SDRAM |
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