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參數(shù)資料
| 型號： | M29F400BB90MT3E |
| 廠商： | NUMONYX |
| 元件分類： | PROM |
| 英文描述： | 256K X 16 FLASH 5V PROM, 70 ns, PDSO44 |
| 封裝： | 0.500 INCH, LEAD FREE, PLASTIC, SOP-44 |
| 文件頁數(shù)： | 15/40頁 |
| 文件大?。?/td> | 316K |
| 代理商： | M29F400BB90MT3E |
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Status Register
M29F400BT, M29F400BB
5
Status Register
Bus Read operations from any address always read the Status Register during Program and
Erase operations. It is also read during Erase Suspend when an address within a block
being erased is accessed.
The bits in the Status Register are summarized in Table Table 6., Status Register Bits.
5.1
Data Polling Bit (DQ7)
The Data Polling Bit can be used to identify whether the Program/Erase Controller has
successfully completed its operation or if it has responded to an Erase Suspend. 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
programmed to DQ7. After successful completion of the Program operation the memory
returns to Read mode and Bus Read operations from the address just programmed output
DQ7, not its complement.
During Erase operations the Data Polling Bit outputs ’0’, the complement of the erased state
of DQ7. After successful completion of the Erase operation the memory returns to Read
Mode.
In Erase Suspend mode the Data Polling Bit will output a ’1’ during a Bus Read operation
within a block being erased. The Data Polling Bit will change from a ’0’ to a ’1’ when the
Program/Erase Controller has suspended the Erase operation.
Figure Figure 4., Data Polling Flowchart, gives an example of how to use the Data Polling
Bit. A Valid Address is the address being programmed or an address within the block being
erased.
5.2
Toggle Bit (DQ6)
The Toggle Bit can be used to identify whether the Program/Erase Controller has
successfully completed its operation or if it has responded to an Erase Suspend. 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
successive Bus Read operations at any address. After successful completion of the
operation the memory returns to Read mode.
During Erase Suspend mode the Toggle Bit will output when addressing a cell within a block
being erased. The Toggle Bit will stop toggling when the Program/Erase Controller has
suspended the Erase operation.
Figure Figure 5., Data Toggle Flowchart, gives an example of how to use the Data Toggle
Bit.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M29F400BB90N1 | 功能描述:閃存 512Kx8 or 256Kx16 90 RoHS:否 制造商:ON Semiconductor 數(shù)據(jù)總線寬度:1 bit 存儲類型:Flash 存儲容量:2 MB 結(jié)構(gòu):256 K x 8 定時類型: 接口類型:SPI 訪問時間: 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 |
| M29F400BB90N1T | 功能描述:閃存 512Kx8 or 256Kx16 90 RoHS:否 制造商:ON Semiconductor 數(shù)據(jù)總線寬度:1 bit 存儲類型:Flash 存儲容量:2 MB 結(jié)構(gòu):256 K x 8 定時類型: 接口類型:SPI 訪問時間: 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 |
| M29F400BB90N6 | 功能描述:閃存 512Kx8 or 256Kx16 90 RoHS:否 制造商:ON Semiconductor 數(shù)據(jù)總線寬度:1 bit 存儲類型:Flash 存儲容量:2 MB 結(jié)構(gòu):256 K x 8 定時類型: 接口類型:SPI 訪問時間: 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 |
| M29F400BB90N6T | 功能描述:閃存 512Kx8 or 256Kx16 90 RoHS:否 制造商:ON Semiconductor 數(shù)據(jù)總線寬度:1 bit 存儲類型:Flash 存儲容量:2 MB 結(jié)構(gòu):256 K x 8 定時類型: 接口類型:SPI 訪問時間: 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 |
| M29F400BT45N1 | 功能描述:閃存 512Kx8 or 256Kx16 45 RoHS:否 制造商:ON Semiconductor 數(shù)據(jù)總線寬度:1 bit 存儲類型:Flash 存儲容量:2 MB 結(jié)構(gòu):256 K x 8 定時類型: 接口類型:SPI 訪問時間: 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 |
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