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参数资料
| 型号： | M29F400FB55M3F2 |
| 元件分类： | PROM |
| 英文描述： | 256K X 16 FLASH 5V PROM, 55 ns, PDSO44 |
| 封装： | 0.500 INCH, ROHS COMPLIANT, PLASTIC, SOP-44 |
| 文件页数： | 20/65页 |
| 文件大小： | 1669K |
| 代理商： | M29F400FB55M3F2 |
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M29FxxxFT, M29FxxxFB
Command Interface
27/65
within about 100μs, leaving the data unchanged. No error condition is given when protected
blocks are ignored.
During the erase operation the memory will ignore all commands. It is not possible to issue
any command to abort the operation. Typical chip erase times are given in Table Table 6..
All Bus Read operations during the Chip Erase operation will output the Status Register on
the Data Inputs/Outputs. See the section on the Status Register for more details.
After the Chip Erase operation has completed the memory will return to the Read Mode,
unless an error has occurred. When an error occurs the memory will continue to output the
Status Register. A Read/Reset command must be issued to reset the error condition and
return to Read Mode.
The Chip Erase Command sets all of the bits in unprotected blocks of the memory to ’1’. All
previous data is lost.
4.8
Block Erase Command
The Block Erase command can be used to erase a list of one or more blocks. Six Bus Write
operations are required to select the first block in the list. Each additional block in the list can
be selected by repeating the sixth Bus Write operation using the address of the additional
block. The Block Erase operation starts the Program/Erase Controller about 50μs after the
last Bus Write operation. Once the Program/Erase Controller starts it is not possible to
select any more blocks. Each additional block must therefore be selected within 50μs of the
last block. The 50μs timer restarts when an additional block is selected. The Status Register
can be read after the sixth Bus Write operation. See the Status Register section for details
on how to identify if the Program/Erase Controller has started the Block Erase operation.
If any selected blocks are protected then these are ignored and all the other selected blocks
are erased. If all of the selected blocks are protected the Block Erase operation appears to
start but will terminate within about 100μs, leaving the data unchanged. No error condition is
given when protected blocks are ignored.
During the Block Erase operation the memory will ignore all commands except the Erase
Suspend command. Typical block erase times are given in Table Table 6.. All Bus Read
operations during the Block Erase operation will output the Status Register on the Data
Inputs/Outputs. See the section on the Status Register for more details.
After the Block Erase operation has completed the memory will return to the Read Mode,
unless an error has occurred. When an error occurs the memory will continue to output the
Status Register. A Read/Reset command must be issued to reset the error condition and
return to Read mode.
The Block Erase Command sets all of the bits in the unprotected selected blocks to ’1’. All
previous data in the selected blocks is lost.
4.9
Erase Suspend Command.
The Erase Suspend Command may be used to temporarily suspend a Block Erase
operation and return the memory to Read mode. The command requires one Bus Write
operation.
The Program/Erase Controller will suspend within the Erase Suspend Latency Time (refer to
Table Table 6. for value) of the Erase Suspend Command being issued. Once the
相关PDF资料 |
PDF描述 |
|---|---|
| M29F400FB5AN6F2 | 256K X 16 FLASH 5V PROM, 55 ns, PDSO48 |
| M29W800B-120N5RTR | 1M X 8 FLASH 3V PROM, 120 ns, PDSO48 |
| M29W800T-150M6 | 1M X 8 FLASH 3V PROM, 150 ns, PDSO44 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| M29F400FB55M3F2 TR | 制造商:Micron Technology Inc 功能描述:IC FLASH 4MBIT 55NS 44SO |
| M29F400FB55M3T2 | 制造商:Micron Technology Inc 功能描述:AUTOMOTIVE 5V - Trays |
| M29F400FB55N3E2 | 制造商:Micron Technology Inc 功能描述:AUTOMOTIVE 5V - Trays 制造商:Micron Technology Inc 功能描述:IC FLASH 4MBIT 55NS 48TSOP |
| M29F400FB55N3F2 | 制造商:Micron Technology Inc 功能描述:AUTOMOTIVE 5V - Tape and Reel |
| M29F400FB55N3F2 TR | 制造商:Micron Technology Inc 功能描述:IC FLASH 4MBIT 55NS 48TSOP |
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