参数资料
型号: W25X20BLSNIG
厂商: WINBOND ELECTRONICS CORP
元件分类: PROM
英文描述: 2M X 1 FLASH 2.7V PROM, PDSO8
封装: 0.150 INCH, GREEN, PLASTIC, SOIC-8
文件页数: 8/53页
文件大小: 2041K
代理商: W25X20BLSNIG
W25X10BL/20BL/40BL
- 16 -
9.2.3
Write Enable (06h)
The Write Enable instruction (Figure 4) sets the Write Enable Latch (WEL) bit in the Status Register to
a 1. The WEL bit must be set prior to every Page Program, Sector Erase, Block Erase, Chip Erase and
Write Status Register instruction. The Write Enable instruction is entered by driving /CS low, shifting
the instruction code “06h” into the Data Input (DI) pin on the rising edge of CLK, and then driving /CS
high.
Figure 4. Write Enable Instruction Sequence Diagram
9.2.4
Write Enable for Volatile Status Register (50h)
The non-volatile Status Register bits described in section 9.1 can also be written to as volatile bits. This
gives more flexibility to change the system configuration and memory protection schemes quickly
without waiting for the typical non-volatile bit write cycles or affecting the endurance of the Status
Register non-volatile bits. To write the volatile values into the Status Register bits, the Write Enable for
Volatile Status Register (50h) instruction must be issued prior to a Write Status Register (01h)
instruction. Write Enable for Volatile Status Register instruction (Figure 5) will not set the Write Enable
Latch (WEL) bit, it is only valid for the Write Status Register instruction to change the volatile Status
Register bit values.
Figure 5. Write Enable for Volatile Status Register Instruction Sequence Diagram
Instruction (50h)
相关PDF资料
PDF描述
W25X20BLZPIG 2M X 1 FLASH 2.7V PROM, PDSO8
W25X32AVDAIZ 4M X 8 FLASH 2.7V PROM, PDIP8
W25X40-VSNI 4M X 1 FLASH 2.7V PROM, PDSO8
W25X80-VSNI-G 8M X 1 FLASH 2.7V PROM, PDSO8
W25X40BVDAIG 4M X 1 FLASH 2.7V PROM, PDIP8
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