W25Q16DW
7.2.14
Fast Read Quad Output (6Bh)
The Fast Read Quad Output (6Bh) instruction is similar to the Fast Read Dual Output (3Bh) instruction
except that data is output on four pins, IO 0 , IO 1 , IO 2 , and IO 3 . A Quad enable of Status Register-2 must be
executed before the device will accept the Fast Read Quad Output Instruction (Status Register bit QE
must equal 1). The Fast Read Quad Output Instruction allows data to be transferred from the W25Q16DW
at four times the rate of standard SPI devices.
The Fast Read Quad Output instruction can operate at the highest possible frequency of F R (see AC
Electrical Characteristics). This is accomplished by adding eight “dummy” clocks after the 24-bit address
as shown in Figure 13. The dummy clocks allow the device's internal circuits additional time for setting up
the initial address. The input data during the dummy clocks is “don’t care”. However, the IO pins should be
high-impedance prior to the falling edge of the first data out clock.
/CS
Mode 3
0
1
2
3
4
5
6
7
8
9
10
28
29
30
31
CLK
Mode 0
Instruction (6Bh)
24-Bit Address
IO 0
23
22
21
3
2
1
0
IO 1
IO 2
IO 3
/CS
* = MSB
High Impedance
High Impedance
High Impedance
*
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
CLK
Dummy Clocks
IO 0 switches from
Input to Output
IO 0
IO 1
IO 2
IO 3
0
High Impedance
High Impedance
High Impedance
4
5
6
7
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
Byte 1
Byte 2
Byte 3
Byte 4
Figure 13. Fast Read Quad Output Instruction (SPI Mode only)
- 32 -
相关PDF资料
W25Q16VSFIG IC FLASH 16MBIT 80MHZ 16SOIC
W25Q32BVZPIG IC SPI FLASH 32MBIT 8WSON
W25Q32DWZEIG IC FLASH SPI 32MBIT 8WSON
W25Q40BWSSIG IC FLASH SPI 4MBIT 8SOIC
W25Q40BWZPIG IC FLASH SPI 4MBIT 8WSON
W25Q64BVSFIG IC SPI FLASH 64MBIT 16SOIC
W25Q64CVZEIG IC SPI FLASH 64MBIT 8WSON
W25Q64DWZEIG IC FLASH SPI 64MBIT 8WSON
相关代理商/技术参数
W25Q16DWSFIP 制造商:WINBOND 制造商全称:Winbond 功能描述:1.8V 16M-BIT SERIAL FLASH MEMORY WITH DUAL/QUAD SPI & QPI
W25Q16DWSNIG 制造商:WINBOND 制造商全称:Winbond 功能描述:1.8V 16M-BIT SERIAL FLASH MEMORY WITH DUAL/QUAD SPI & QPI
W25Q16DWSNIP 制造商:WINBOND 制造商全称:Winbond 功能描述:1.8V 16M-BIT SERIAL FLASH MEMORY WITH DUAL/QUAD SPI & QPI
W25Q16DWSSIG 功能描述:IC FLASH SPI 16MBIT 8SOIC RoHS:是 类别:集成电路 (IC) >> 存储器 系列:SpiFlash® 标准包装:2,500 系列:- 格式 - 存储器:EEPROMs - 串行 存储器类型:EEPROM 存储容量:1K (128 x 8) 速度:100kHz 接口:UNI/O?(单线) 电源电压:1.8 V ~ 5.5 V 工作温度:-40°C ~ 85°C 封装/外壳:8-TSSOP,8-MSOP(0.118",3.00mm 宽) 供应商设备封装:8-MSOP 包装:带卷 (TR)
W25Q16DWSSIP 制造商:WINBOND 制造商全称:Winbond 功能描述:1.8V 16M-BIT SERIAL FLASH MEMORY WITH DUAL/QUAD SPI & QPI
W25Q16DWZPIG 制造商:Winbond Electronics Corp 功能描述:IC FLASH 16MBIT 104MHZ 8WSON
W25Q16DWZPIP 制造商:WINBOND 制造商全称:Winbond 功能描述:1.8V 16M-BIT SERIAL FLASH MEMORY WITH DUAL/QUAD SPI & QPI
W25Q16V 制造商:WINBOND 制造商全称:Winbond 功能描述:16M-BIT SERIAL FLASH MEMORY WITH DUAL AND QUAD SPI