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參數(shù)資料
| 型號(hào)： | M29W512B90NZ1T |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | 512 Kbit 64Kb x8, Bulk Low Voltage Single Supply Flash Memory |
| 中文描述： | 512千位64Kb的× 8，大量低電壓?jiǎn)坞娫撮W存 |
| 文件頁(yè)數(shù)： | 7/18頁(yè) |
| 文件大?。?/td> | 139K |
| 代理商： | M29W512B90NZ1T |
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M29W512B
STATUS REGISTER
Bus Read operations from any address always
read the Status Register during Program and
Erase operations.
The bits in the Status Register are summarized in
Table 6, Status Register Bits.
Data Polling Bit (DQ7).
The Data Polling Bit can
be used to identify whether the Program/Erase
Controller has successfully completed its opera-
tion. The Data Polling Bit is output on DQ7 when
the Status Register is read.
During Program operations the Data Polling Bit
outputs the complement of the bit being pro-
grammed to DQ7. After successful completion of
the Program operation the memory returns to
Read mode and Bus Read operations from the ad-
dress just programmed output DQ7, not its com-
plement.
During Erase operations the Data Polling Bit out-
puts ’0’, the complement of the erased state of
DQ7. After successful completion of the Erase op-
eration the memory returns to Read Mode.
Figure 4, Data Polling Flowchart, gives an exam-
ple of how to use the Data Polling Bit. A Valid Ad-
dress is the address being programmed or any
address while erasing the chip.
Toggle Bit (DQ6).
The Toggle Bit can be used to
identify whether the Program/Erase Controller has
successfully completed its operation. The Toggle
Bit is output on DQ6 when the Status Register is
read.
During Program and Erase operations the Toggle
Bit changes from ’0’ to ’1’ to ’0’, etc., with succes-
sive Bus Read operations at any address. After
successful completion of the operation the memo-
ry returns to Read mode.
Figure 5, Data Toggle Flowchart, gives an exam-
ple of how to use the Data Toggle Bit.
Error Bit (DQ5).
The Error Bit can be used to
identify errors detected by the Program/Erase
Controller. The Error Bit is set to ’1’ when a Pro-
gram or Chip Erase operation fails to write the cor-
rect data to the memory. If the Error Bit is set a
Read/Reset command must be issued before oth-
er commands are issued. The Error bit is output on
DQ5 when the Status Register is read.
Note that the Program command cannot change a
bit set at ’0’ back to ’1’ and attempting to do so may
or may not set DQ5 at ’1’. In both cases, a succes-
sive Bus Read operation will show the bit is still ’0’.
The Chip Erase command must be used to set all
the bits the memory from ’0’ to ’1’.
Table 6. Status Register Bits
Note: Unspecified data bits should be ignored.
Operation
Address
DQ7
DQ6
DQ5
Program
Any Address
DQ7
Toggle
0
Program Error
Any Address
DQ7
Toggle
1
Chip Erase
Any Address
0
Toggle
0
Erase Error
Any Address
0
Toggle
1
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| M29W640DB90N6 | 功能描述:閃存 8Mx8 or 4Mx16 90ns RoHS:否 制造商:ON Semiconductor 數(shù)據(jù)總線寬度:1 bit 存儲(chǔ)類型:Flash 存儲(chǔ)容量:2 MB 結(jié)構(gòu):256 K x 8 定時(shí)類型: 接口類型:SPI 訪問(wèn)時(shí)間: 電源電壓-最大:3.6 V 電源電壓-最小:2.3 V 最大工作電流:15 mA 工作溫度:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體: 封裝:Reel |
| M29W640DB90N6E | 功能描述:閃存 8Mx8 or 4Mx16 90ns RoHS:否 制造商:ON Semiconductor 數(shù)據(jù)總線寬度:1 bit 存儲(chǔ)類型:Flash 存儲(chǔ)容量:2 MB 結(jié)構(gòu):256 K x 8 定時(shí)類型: 接口類型:SPI 訪問(wèn)時(shí)間: 電源電壓-最大:3.6 V 電源電壓-最小:2.3 V 最大工作電流:15 mA 工作溫度:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體: 封裝:Reel |
| M29W640DB90N6F | 功能描述:閃存 STD FLASH RoHS:否 制造商:ON Semiconductor 數(shù)據(jù)總線寬度:1 bit 存儲(chǔ)類型:Flash 存儲(chǔ)容量:2 MB 結(jié)構(gòu):256 K x 8 定時(shí)類型: 接口類型:SPI 訪問(wèn)時(shí)間: 電源電壓-最大:3.6 V 電源電壓-最小:2.3 V 最大工作電流:15 mA 工作溫度:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體: 封裝:Reel |
| M29W640DB90ZA6 | 功能描述:閃存 8Mx8 or 4Mx16 90ns RoHS:否 制造商:ON Semiconductor 數(shù)據(jù)總線寬度:1 bit 存儲(chǔ)類型:Flash 存儲(chǔ)容量:2 MB 結(jié)構(gòu):256 K x 8 定時(shí)類型: 接口類型:SPI 訪問(wèn)時(shí)間: 電源電壓-最大:3.6 V 電源電壓-最小:2.3 V 最大工作電流:15 mA 工作溫度:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體: 封裝:Reel |
| M29W640DB90ZA6T | 制造商:Micron Technology Inc 功能描述:FLASH PARALLEL 3V/3.3V 64MBIT 8MX8/4MX16 90NS 63TFBGA - Tape and Reel |
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