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参数资料
| 型号： | SST25WF040-40-5I-QAE-T |
| 厂商： | Microchip Technology |
| 文件页数： | 8/36页 |
| 文件大小： | 0K |
| 描述： | IC FLASH SER 4MB 40MHZ SPI 8WSON |
| 标准包装： | 2,000 |
| 系列： | SST25 |
| 格式 - 存储器： | 闪存 |
| 存储器类型： | FLASH |
| 存储容量： | 4M (512K x 8) |
| 速度： | 40MHz |
| 接口： | SPI 串行 |
| 电源电压： | 1.65 V ~ 1.95 V |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 8-WDFN 裸露焊盘 |
| 供应商设备封装： | 8-WSON |
| 包装： | 带卷 (TR) |
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512 Kbit / 1 Mbit / 2 Mbit / 4 Mbit 1.8V SPI Serial Flash
A Microchip Technology Company
SST25WF512 / SST25WF010 / SST25WF020 / SST25WF040
Data Sheet
Status Register
The software status register provides status on whether the flash memory array is available for any
Read or Write operation, whether the device is Write enabled, and the state of the Memory Write pro-
tection. During an internal Erase or Program operation, the status register may be read only to deter-
mine the completion of an operation in progress. Table 4 describes the function of each bit in the
software status register.
Table 4: Software Status Register
Default at
Bit Name Function
Power-up
Read/Write
0
BUSY 1 = Internal Write operation is in progress
0
R
0 = No internal Write operation is in progress
1
WEL
1 = Device is memory Write enabled
0
R
0 = Device is not memory Write enabled
2
3
4
5
6
BP0
BP1
BP2
RES
AAI
Indicate current level of block write protection (See Tables 5 through 8)
Indicate current level of block write protection (See Tables 5 through 8)
Indicate current level of block write protection (See Tables 5 through 8)
Reserved for future use
Auto Address Increment Programming status
1
1
1
0
0
R/W
R/W
R/W
N/A
R
1 = AAI programming mode
0 = Byte-Program mode
7
BPL
1 = BP1 and BP0 are read-only bits
0
R/W
0 = BP1 and BP0 are read/writable
T4.1 25016
Busy
The Busy bit determines whether there is an internal Erase or Program operation in progress. A ‘1’ for
the Busy bit indicates the device is busy with an operation in progress. A ‘0’ indicates the device is
ready for the next valid operation.
Write Enable Latch (WEL)
The Write-Enable-Latch bit indicates the status of the internal Write-Enable-Latch memory. If the WEL
bit is set to ‘1’, it indicates the device is Write enabled. If the bit is set to ‘0’ (reset), it indicates the
device is not Write enabled and does not accept any Write (Program/Erase) commands. The Write-
Enable-Latch bit is automatically reset under the following conditions:
?
?
?
?
?
?
?
?
?
Device Reset
Power-up
Write-Disable (WRDI) instruction completion
Byte-Program instruction completion
Auto Address Increment (AAI) programming is completed or reached its highest unpro-
tected memory address
Sector-Erase instruction completion
Block-Erase instruction completion
Chip-Erase instruction completion
Write-Status-Register instructions
?2011 Silicon Storage Technology, Inc.
8
DS25016A
06/11
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SST25WF040-40-5I-QAF | 制造商:SST 制造商全称:Silicon Storage Technology, Inc 功能描述:512 Kbit / 1 Mbit / 2 Mbit / 4Mbit 1.8V SPI Serial Flash |
| SST25WF040-40-5I-SAE | 制造商:SST 制造商全称:Silicon Storage Technology, Inc 功能描述:512 Kbit / 1 Mbit / 2 Mbit / 4Mbit 1.8V SPI Serial Flash |
| SST25WF040-40-5I-SAF | 功能描述:闪存 4M (512Kx8) 40MHz Industrial Temp RoHS:否 制造商:ON Semiconductor 数据总线宽度:1 bit 存储类型:Flash 存储容量:2 MB 结构:256 K x 8 定时类型: 接口类型:SPI 访问时间: 电源电压-最大:3.6 V 电源电压-最小:2.3 V 最大工作电流:15 mA 工作温度:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体: 封装:Reel |
| SST25WF040-40-5I-SAF-T | 功能描述:闪存 1.65 to 1.95V 4Mbit SPI Serial 闪存 RoHS:否 制造商:ON Semiconductor 数据总线宽度:1 bit 存储类型:Flash 存储容量:2 MB 结构:256 K x 8 定时类型: 接口类型:SPI 访问时间: 电源电压-最大:3.6 V 电源电压-最小:2.3 V 最大工作电流:15 mA 工作温度:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体: 封装:Reel |
| SST25WF080 | 制造商:SST 制造商全称:Silicon Storage Technology, Inc 功能描述:8Mbit 1.8V SPI Serial Flash |
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