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A25L080Q4-UFG 参数 Datasheet PDF下载

A25L080Q4-UFG图片预览
型号: A25L080Q4-UFG
PDF下载: 下载PDF文件 查看货源
内容描述: 16Mbit的低电压,串行闪存的100MHz统一4KB扇区 [16Mbit Low Voltage, Serial Flash Memory With 100MHz Uniform 4KB Sectors]
分类和应用: 闪存
文件页数/大小: 43 页 / 681 K
品牌: AMICC [ AMIC TECHNOLOGY ]
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A25L016 Series  
Fast Read Dual Input-Output (BBh)  
The Fast Read Dual Input-Output (BBh) instruction is similar  
to the Fast_Read (0Bh) instruction except the data is input  
and output on two pins, DO and DIO, instead of just DO. This  
allows data to be transferred from the A25L016 at twice the  
rate of standard SPI devices.  
Similar to the Fast Read instruction, the Fast Read Dual  
Output instruction can operate at the highest possible  
frequency of fC (See AC Characteristics). This is  
accomplished by adding four “dummy” clocks after the 24-bit  
address as shown in figure 11. 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 DIO and DO pins should be  
high-impedance prior to the falling edge of the first data out  
clock.  
Figure 11. FAST_READ_DUAL_INPUT-OUTPUT Instruction Sequence and Data-Out Sequence  
S
6
0
1
2
3
4
5
7
8
9 10  
16 17 18 19  
C
DIO  
DO  
Instruction  
24-Bit Address  
22  
18  
4
2
3
0
1
20  
6
MSB  
High Impedance  
23  
19  
5
7
21  
S
C
20 21 22 23 24 25 26 27 28  
Dummy  
29 30 31 32 33 34 35  
DIO switches from input to output  
Byte  
3
2
1
0
6
4
2
0
6
4
2
0
6
4
2
0
1
6
7
4
5
2
3
0
1
6
7
4
5
2
3
0
1
DIO  
DO  
3
1
3
7
5
3
1
5
7
5
7
7
MSB  
MSB  
MSB  
MSB  
Data Out 2  
Data Out 3  
Data Out 4  
Data Out 5  
Data Out 1  
Note:. Address bits A23 to A21 are Don’t Care, for A25L016.  
(March, 2012, Version 2.0)  
18  
AMIC Technology Corp.  
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