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X28C64S-15 参数 Datasheet PDF下载

X28C64S-15图片预览
型号: X28C64S-15
PDF下载: 下载PDF文件 查看货源
内容描述: 5伏,可变的字节E2PROM [5 Volt, Byte Alterable E2PROM]
分类和应用: 存储内存集成电路光电二极管可编程只读存储器电动程控只读存储器电可擦编程只读存储器
文件页数/大小: 25 页 / 112 K
品牌: XICOR [ XICOR INC. ]
 浏览型号X28C64S-15的Datasheet PDF文件第1页浏览型号X28C64S-15的Datasheet PDF文件第2页浏览型号X28C64S-15的Datasheet PDF文件第3页浏览型号X28C64S-15的Datasheet PDF文件第5页浏览型号X28C64S-15的Datasheet PDF文件第6页浏览型号X28C64S-15的Datasheet PDF文件第7页浏览型号X28C64S-15的Datasheet PDF文件第8页浏览型号X28C64S-15的Datasheet PDF文件第9页  
X28C64  
DATA Polling I/O  
7
Figure 2. DATA Polling Bus Sequence  
LAST  
WRITE  
WE  
CE  
OE  
V
IH  
V
HIGH Z  
OH  
I/O  
7
V
OL  
X28C64  
READY  
A –A  
0
12  
An  
An  
An  
An  
An  
An  
An  
3853 FHD F12  
Figure 3. DATA Polling Software Flow  
DATA Polling can effectively halve the time for writing to  
the X28C64. The timing diagram in Figure 2 illustrates  
the sequence of events on the bus. The software flow  
diagraminFigure3illustratesonemethodofimplement-  
ing the routine.  
WRITE DATA  
NO  
WRITES  
COMPLETE?  
YES  
SAVE LAST DATA  
AND ADDRESS  
READ LAST  
ADDRESS  
IO  
NO  
7
COMPARE?  
YES  
X28C64  
READY  
3853 FHD F13  
4