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参数资料
| 型号： | RC28F00BM29EWHA |
| 厂商： | Micron Technology Inc |
| 文件页数： | 21/75页 |
| 文件大小： | 0K |
| 描述： | IC FLASH 2GBIT 100NS 64FBGA |
| 标准包装： | 184 |
| 系列： | Axcell™ |
| 格式 - 存储器： | 闪存 |
| 存储器类型： | 闪存 - 或非 |
| 存储容量： | 2G（256M x 8，128M x 16） |
| 速度： | 100ns |
| 接口： | 并联 |
| 电源电压： | 2.7 V ~ 3.6 V |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 64-LBGA |
| 供应商设备封装： | 64-FBGA（11x13） |
| 包装： | 托盘 |
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256Mb, 512Mb, 1Gb, 2Gb: 3V Embedded Parallel NOR Flash
Registers
Lock Register
Table 9: Lock Register Bit Definitions
Note 1 applies to entire table
Bit Name
DQ2 Password
protection
Settings
0 = Password protection
mode enabled
Description
Places the device permanently in password protection mode.
Notes
2
mode lock bit 1 = Password protection
mode disabled (Default)
DQ1 Nonvolatile
protection
0 = Nonvolatile protection
mode enabled with pass-
Places the device in nonvolatile protection mode with pass-
word protection mode permanently disabled. When shipped
2
mode lock bit word protection mode
permanently disabled
1 = Nonvolatile protection
mode enabled (Default)
from the factory, the device will operate in nonvolatile protec-
tion mode, and the memory blocks are unprotected.
DQ0 Extended
memory
0 = Protected
1 = Unprotected (Default)
If the device is shipped with the extended memory block un-
locked, the block can be protected by setting this bit to 0. The
block
protection bit
Notes:
extended memory block protection status can be read in auto
select mode by issuing an AUTO SELECT command.
1. The lock register is a 16-bit, one-time programmable register. DQ[15:3] are reserved and
are set to a default value of 1.
2. The password protection mode lock bit and nonvolatile protection mode lock bit cannot
both be programmed to 0. Any attempt to program one while the other is programmed
causes the operation to abort, and the device returns to read mode. The device is ship-
ped from the factory with the default setting.
Table 10: Block Protection Status
Nonvolatile
Block
Protection Bit
Nonvolatile
Volatile
Protection
Lock Bit 1
Protection Bit 2 Protection Bit 3
Status
Block Protection Status
1
1
1
00h
Block unprotected; nonvolatile protection bit changea-
ble.
1
1
0
01h
Block protected by volatile protection bit; nonvolatile
protection bit changeable.
1
0
1
01h
Block protected by nonvolatile protection bit; nonvola-
tile protection bit changeable.
1
0
0
01h
Block protected by nonvolatile protection bit and vola-
tile protection bit; nonvolatile protection bit changea-
ble.
0
1
1
00h
Block unprotected; nonvolatile protection bit un-
changeable.
0
1
0
01h
Block protected by volatile protection bit; nonvolatile
protection bit unchangeable.
0
0
1
01h
Block protected by nonvolatile protection bit; nonvola-
tile protection bit unchangeable.
PDF: 09005aef849b4b09
m29ew_256mb_2gb.pdf - Rev. B 8/12 EN
21
Micron Technology, Inc. reserves the right to change products or specifications without notice.
? 2012 Micron Technology, Inc. All rights reserved.
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