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參數(shù)資料
| 型號： | GE28F128W30B90 |
| 英文描述： | CHIP RESISTOR |
| 中文描述： | 的EEPROM | FLASH動畫| 8M × 16位|的CMOS | BGA封裝| 60PIN |塑料 |
| 文件頁數(shù)： | 37/91頁 |
| 文件大?。?/td> | 994K |
| 代理商： | GE28F128W30B90 |
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1.8 Volt Intel
Wireless Flash Memory with 3 Volt I/O
Datasheet
37
NOTE:
The notation [X,Y,Z] denotes the locking state of a block, The current locking state of a block is defined
by the state of WP# and the two bits of the block-lock status D[1:0].
7.1.1
Lock
All blocks default to locked (state [x01]) after initial power-up or reset. Locked blocks are fully
protected from alteration. Attempted program or erase operations to a locked block will return an
error in SR[1]. Unlocked blocks can be locked by using the Lock Block command sequence.
Similarly, a locked block’s status can be changed to unlocked or lock-down using the appropriate
software commands.
7.1.2
Unlock
Unlocked blocks (states [x00] and [110]) can be programmed or erased. All unlocked blocks return
to the locked state when the device is reset or powered-down. An unlocked block’s status can be
changed to the locked or locked-down state using the appropriate software commands. A locked
block can be unlocked by writing the Unlock Block command sequence if the block is not locked-
down.
7.1.3
Lock-Down
Locked-down blocks (state [011]) offer the user an additional level of write protection beyond that
of a regular locked block. A block that is locked-down cannot have it’s state changed by software if
WP# is asserted. A locked or unlocked block can be locked-down by writing the Lock-Down Block
command sequence. If a block was set to locked-down, then later changed to unlocked, a Lock-
Down command should be issued prior asserting WP# will put that block back to the locked-down
state. When WP# is deasserted, locked-down blocks are changed to the locked state and can then
be unlocked by the Unlock Block command.
Figure 10. Block Locking State Diagram
[X00]
[X01]
Power-Up/Reset
Unlocked
Locked
[011]
[111]
[110]
Locked-
Down
4,5
Software
Locked
[011]
Hardware
Locked
5
Unlocked
WP# Hardware Control
Software Block Lock (0x60/0x01) or Software Block Unlock (0x60/0xD0)
Software Block Lock-Down (0x60/0x2F)
WP# hardware control
相關PDF資料 |
PDF描述 |
|---|---|
| GE28F128W30T90 | EEPROM|FLASH|8MX16|CMOS|BGA|60PIN|PLASTIC |
| GE28F640W30B70 | EEPROM|FLASH|4MX16|CMOS|BGA|56PIN|PLASTIC |
| GE28F640W30B85 | EEPROM|FLASH|4MX16|CMOS|BGA|56PIN|PLASTIC |
| GE28F640W30T70 | EEPROM|FLASH|4MX16|CMOS|BGA|56PIN|PLASTIC |
| GE28F640W30T85 | EEPROM|FLASH|4MX16|CMOS|BGA|56PIN|PLASTIC |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| GE28F128W30T90 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:EEPROM|FLASH|8MX16|CMOS|BGA|60PIN|PLASTIC |
| GE28F160B3BC70 | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:3 Volt Advanced Boot Block Flash Memory |
| GE28F160B3BC80 | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:3 Volt Advanced Boot Block Flash Memory |
| GE28F160B3TC70 | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:3 Volt Advanced Boot Block Flash Memory |
| GE28F160B3TC80 | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:3 Volt Advanced Boot Block Flash Memory |
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