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參數(shù)資料
| 型號： | W25Q16DWSFIG |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | PROM |
| 英文描述： | 16M X 1 SPI BUS SERIAL EEPROM, PDSO16 |
| 封裝： | 0.300 INCH, GREEN, PLASTIC, SOIC-16 |
| 文件頁數(shù)： | 26/83頁 |
| 文件大?。?/td> | 1268K |
| 代理商： | W25Q16DWSFIG |
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W25Q16DW
- 32 -
10.2.15 Fast Read Dual I/O (BBh)
The Fast Read Dual I/O (BBh) instruction allows for improved random access while maintaining two IO
pins, IO0 and IO1. It is similar to the Fast Read Dual Output (3Bh) instruction but with the capability to input
the Address bits (A23-0) two bits per clock. This reduced instruction overhead may allow for code
execution (XIP) directly from the Dual SPI in some applications.
Fast Read Dual I/O with “Continuous Read Mode”
The Fast Read Dual I/O instruction can further reduce instruction overhead through setting the
“Continuous Read Mode” bits (M7-0) after the input Address bits (A23-0), as shown in Figure 14a. The
upper nibble of the (M7-4) controls the length of the next Fast Read Dual I/O instruction through the
inclusion or exclusion of the first byte instruction code. The lower nibble bits of the (M3-0) are don’t care
(“x”). However, the IO pins should be high-impedance prior to the falling edge of the first data out clock.
If the “Continuous Read Mode” bits M5-4 = (1,0), then the next Fast Read Dual I/O instruction (after /CS is
raised and then lowered) does not require the BBh instruction code, as shown in Figure 14b. This reduces
the instruction sequence by eight clocks and allows the Read address to be immediately entered after /CS
is asserted low. If the “Continuous Read Mode” bits M5-4 do not equal to (1,0), the next instruction (after
/CS is raised and then lowered) requires the first byte instruction code, thus returning to normal operation.
It is recommended to input FFFFh on IO0 for the next instruction (16 clocks), to ensure M4 = 1 and return
the device to normal operation.
/CS
CLK
DI
(IO
0)
DO
(IO
1)
Mode 0
Mode 3
0
1
2
3
4
5
6
7
Instruction (BBh)
8
9
10
12
13
14
24
25
26
27
28
29
30
31
6
4
2
0
*
23
/CS
CLK
DI
(IO
0)
DO
(IO
1)
0
32
33
34
35
36
37
38
39
7
5
3
1
*
6
4
2
0
7
5
3
1
6
4
2
0
7
5
3
1
6
4
2
0
7
5
3
1
**
IOs switch from
Input to Output
6
7
22
20
18
16
23
21
19
17
14
12
10
8
15
13
11
9
6
4
2
0
7
5
3
1
6
4
2
0
7
5
3
1
11
15
16
17
18
20
21
22
19
23
1
A23-16
A15-8
A7-0
M7-0
Byte 1
Byte 2
Byte 3
Byte 4
= MSB
*
Figure 14a. Fast Read Dual I/O Instruction (Initial instruction or previous M5-4
≠ 10, SPI Mode only)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| W25Q16DWSFIP | 制造商:WINBOND 制造商全稱:Winbond 功能描述:1.8V 16M-BIT SERIAL FLASH MEMORY WITH DUAL/QUAD SPI & QPI |
| W25Q16DWSNIG | 制造商:WINBOND 制造商全稱:Winbond 功能描述:1.8V 16M-BIT SERIAL FLASH MEMORY WITH DUAL/QUAD SPI & QPI |
| W25Q16DWSNIP | 制造商:WINBOND 制造商全稱: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 類別:集成電路 (IC) >> 存儲器 系列:SpiFlash® 標準包裝:2,500 系列:- 格式 - 存儲器:EEPROMs - 串行 存儲器類型:EEPROM 存儲容量:1K (128 x 8) 速度:100kHz 接口:UNI/O?（單線） 電源電壓:1.8 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:8-MSOP 包裝:帶卷 (TR) |
| W25Q16DWSSIP | 制造商:WINBOND 制造商全稱:Winbond 功能描述:1.8V 16M-BIT SERIAL FLASH MEMORY WITH DUAL/QUAD SPI & QPI |
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