参数资料
型号: W25Q64DWZPIP
厂商: WINBOND ELECTRONICS CORP
元件分类: PROM
英文描述: 256K X 32 SPI BUS SERIAL EEPROM, 7.5 ns, PDSO8
封装: 6 X 5 MM, GREEN, WSON-8
文件页数: 19/82页
文件大小: 914K
代理商: W25Q64DWZPIP
W25Q64DW
- 26 -
and a 0 when the cycle is finished and ready to accept other instructions again. After the Write Status
Register cycle has finished, the Write Enable Latch (WEL) bit in the Status Register will be cleared to 0.
During volatile Status Register write operation (50h combined with 01h), after /CS is driven high, the
Status Register bits will be refreshed to the new values within the time period of tSHSL2 (See AC
Characteristics). BUSY bit will remain 0 during the Status Register bit refresh period.
The Write Status Register instruction can be used in both SPI mode and QPI mode. However, the QE bit
cannot be written to when the device is in the QPI mode, because QE=1 is required for the device to
enter and operate in the QPI mode.
Please refer to 10.1 for detailed Status Register Bit descriptions. Factory default for all status Register
bits are 0.
/CS
CLK
DI
(IO
0)
DO
(IO
1)
Mode 0
Mode 3
0
1
2
3
4
5
6
7
Instruction (01h)
High Impedance
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
7
6
5
4
3
2
1
0
15
14
13
12
11
10
9
8
Status Register 1 in
Status Register 2 in
Mode 0
Mode 3
*
= MSB
*
Figure 9a. Write Status Register Instruction (SPI Mode)
/CS
CLK
Mode 0
Mode 3
0
1
IO
0
IO
1
IO
2
IO
3
01h
2
3
4
5
4
0
12
8
5
1
6
2
7
3
13
9
14
10
15
11
SR1 in
SR2 in
Mode 0
Mode 3
Instruction
Figure 9b. Write Status Register Instruction (QPI Mode)
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