参数资料
| 型号： | W25Q40BWSNIG |
| 厂商： | Winbond Electronics |
| 文件页数： | 56/73页 |
| 文件大小： | 0K |
| 描述： | IC FLASH SPI 4MBIT 8SOIC |
| 标准包装： | 100 |
| 系列： | SpiFlash® |
| 格式 - 存储器： | 闪存 |
| 存储器类型： | FLASH |
| 存储容量： | 4M (512K x 8) |
| 速度： | 80MHz |
| 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-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 管件 |
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W25Q40BW
8.2.38
Read Security Registers (48h)
The Read Security Register instruction is similar to the Fast Read instruction and allows one or more data
bytes to be sequentially read from one of the four security registers. The instruction is initiated by driving
the /CS pin low and then shifting the instruction code “48h” followed by a 24 -bit address (A23-A0) and
eight “dummy” clocks into the DI pin. The code and address bits are latched on the rising edge of the CLK
pin. After the address is received, the data byte of the addressed memory location will be shifted out on
the DO pin at the falling edge of CLK with most significant bit (MSB) first. The byte address is
automatically incremented to the next byte address after each byte of data is shifted out. Once the byte
address reaches the last byte of the register (byte FFh), it will reset to 00h, the first byte of the register,
and continue to increment. The instruction is completed by driving /CS high. The Read Security Register
instruction sequence is shown in figure 36. If a Read Security Register instruction is issued while an
Erase, Program or Write cycle is in process (BUSY=1) the instruction is ignored and will not have any
effects on the current cycle. The Read Security Register instruction allows clock rates from D.C. to a
maximum of F R (see AC Electrical Characteristics).
ADDRESS
Security Register #0*
Security Register #1
Security Register #2
Security Register #3
A23-16
00h
00h
00h
00h
A15-12
0000
0001
0010
0011
A11-8
0000
0000
0000
0000
A7-0
Byte Address
Byte Address
Byte Address
Byte Address
* Please note that Security Register 0 is Reserved by Winbond for future use. It is
recommended to use Security registers 1- 3 before using register 0.
Instruction (48h)
Figure 36. Read Security Registers Instruction Sequence
- 56 -
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相关代理商/技术参数 |
参数描述 |
|---|---|
| W25Q40BWSNIG TR | 制造商:Winbond Electronics Corp 功能描述:IC FLASH 4MBIT 80MHZ 8SOIC |
| W25Q40BWSNIP | 制造商:WINBOND 制造商全称:Winbond 功能描述:1.8V 4M-BIT SERIAL FLASH MEMORY WITH DUAL AND QUAD SPI |
| W25Q40BWSSIG | 功能描述:IC FLASH SPI 4MBIT 8SOIC RoHS:是 类别:集成电路 (IC) >> 存储器 系列:SpiFlash® 标准包装:2,000 系列:- 格式 - 存储器:RAM 存储器类型:SRAM - 异步 存储容量:256K (32K x 8) 速度:15ns 接口:并联 电源电压:3 V ~ 3.6 V 工作温度:-40°C ~ 85°C 封装/外壳:28-TSSOP（0.465"，11.8mm 宽） 供应商设备封装:28-TSOP 包装:带卷 (TR) 其它名称:71V256SA15PZGI8 |
| W25Q40BWSSIG TR | 制造商:Winbond Electronics Corp 功能描述:IC FLASH 4MBIT 80MHZ 8SOIC |
| W25Q40BWUXIG | 制造商:WINBOND 制造商全称:Winbond 功能描述:1.8V 4M-BIT SERIAL FLASH MEMORY WITH DUAL AND QUAD SPI |
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