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参数资料
| 型号： | SST25VF020B-80-4I-SAE |
| 厂商： | Microchip Technology |
| 文件页数： | 7/35页 |
| 文件大小： | 0K |
| 描述： | IC FLASH SER 2MB 80MHZ SPI 8SOIC |
| 特色产品： | SST Serial and Parallel Flash Memory |
| 标准包装： | 100 |
| 系列： | SST25 |
| 格式 - 存储器： | 闪存 |
| 存储器类型： | FLASH |
| 存储容量： | 2M (256K x 8) |
| 速度： | 80MHz |
| 接口： | SPI 串行 |
| 电源电压： | 2.7 V ~ 3.6 V |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 管件 |
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2 Mbit SPI Serial Flash
A Microchip Technology Company
SST25VF020B
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 3 describes the function of each bit in the
software status register.
Table 3: Software Status Register
Default at
Bit
0
Name
BUSY
Function
1 = Internal Write operation is in progress
Power-up
0
Read/Write
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
BP0
Indicates current level of block write protection (See Table
1
R/W
5)
3
BP1
Indicates current level of block write protection (See Table
1
R/W
5)
4:5
6
RES
AAI
Reserved for future use
Auto Address Increment Programming status
0
0
N/A
R
1 = AAI programming mode
0 = Byte-Program mode
7
BPL
1 = BP1, BP0 are read-only bits
0
R/W
0 = BP1, BP0 are read/writable
T3.0 25054
Software Status Register 1
The Software Status Register 1 is an additional register that contains Top Sector and Bottom Sector
Protection bits. These register bits are read/writable and determine the lock and unlock status of the
top and bottom sectors.
Table 4 describes the function of each bit in the Software Status Register 1.
Table 4: Software Status Register 1
Default at
Bit
0:1
2
Name
RES
TSP
Function
Reserved for future use
Top Sector Protection status
Power-up
0
0
Read/Write
N/A
R/W
1 = Indicates highest sector is write locked
0 = Indicates highest sector is Write accessible
3
BSP
Bottom Sector Protection status
0
R/W
1 = Indicates lowest sector is write locked
0 = Indicates lowest sector is Write accessible
4:7
RES
Reserved for future use
0
N/A
T4.0 25054
?2012 Silicon Storage Technology, Inc.
7
DS25054A
01/12
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SST25VF020B-80-4I-SAE | 制造商:Microchip Technology Inc 功能描述:MEMORY FLASH 2M SPI 8SOIC |
| SST25VF020B-80-4I-SAE-T | 功能描述:闪存 2.7V to 3.6V 2Mbit 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 |
| SST25VF032B | 制造商:SST 制造商全称:Silicon Storage Technology, Inc 功能描述:32 Mbit SPI Serial Flash |
| SST25VF032B_10 | 制造商:SST 制造商全称:Silicon Storage Technology, Inc 功能描述:32 Mbit SPI Serial Flash |
| SST25VF032B_11 | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:32 Mbit SPI Serial Flash |
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