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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  
Read Device Identification (RDID)  
The Read Identification (RDID) instruction allows the 8-bit  
manufacturer identification code to be read, followed by two  
bytes of device identification. The manufacturer identification  
is assigned by JEDEC, and has the value 37h. The device  
identification is assigned by the device manufacturer, and  
indicates the memory in the first bytes (30h), and the memory  
capacity of the device in the second byte (15h for A25L016).  
Any Read Identification (RDID) instruction while an Erase, or  
Program cycle is in progress, is not decoded, and has no  
effect on the cycle that is in progress.  
This is followed by the 24-bit device identification, stored in  
the memory, being shifted out on Serial Data Output (DO),  
each bit being shifted out during the falling edge of Serial  
Clock (C).  
The instruction sequence is shown in Figure 17. The Read  
Identification (RDID) instruction is terminated by driving Chip  
S
Select ( ) High at any time during data output.  
S
When Chip Select ( ) is driven High, the device is put in the  
Stand-by Power mode. Once in the Stand-by Power mode,  
the device waits to be selected, so that it can receive, decode  
and execute instructions.  
S
The device is first selected by driving Chip Select ( ) Low.  
Then, the 8-bit instruction code for the instruction is shifted in.  
Table 6. Read Identification (READ_ID) Data-Out Sequence  
Manufacture Identification  
Device Identification  
Memory Capacity  
15h  
Manufacture ID  
37h  
Memory Type  
30h  
Figure 17. Read Identification (RDID) Instruction Sequence and Data-Out Sequence  
S
0
1
2
3
4
5
6
7
8
9
10  
13 14 15 16 17 18  
21 22 23 24 25 26  
29 30 31  
C
Instruction  
DIO  
DO  
23  
21  
18  
16 15  
13  
14  
10  
8
7
6
5
2
1
0
22  
17  
9
High Impedance  
Manufacture ID  
Memory Type  
Memory Capacity  
(March, 2012, Version 2.0)  
24  
AMIC Technology Corp.  
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