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LE25S161 데이터시트(PDF) 25 Page - ON Semiconductor

부품명 LE25S161
상세설명  Serial Flash Memory
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LE25S161 데이터시트(HTML) 25 Page - ON Semiconductor

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10-8. Sector Erase (SE)
Sector Erase is an operation that sets the memory cell data in any sector to "1". A sector consists of 64Kbytes.
"Figure 11. Sector Erase (SE)" shows the timing waveforms.
"Figure 33. Sector Erase Flowcharts" shows the flowcharts.
The sequence of SE operation :
CS goes to low  input SE command (D8h)  3 Byte address (A23-A0) input on SI
 CS goes to high (be executed by the rising CS edge)
* A20 to A16 are valid address
After the correct input sequence the internal erase operation is executed by the rising CS edge, and it is completed
automatically by the control exercised by the internal timer (tSE). The end of erase operation can also be detected by
status register (RDY).
Add
(A7-A0)
Add
(A15-A8)
Add
(A23-A16)
Self-timed
Erase Cycle
SCK
SI
High Impedance
SO
CS
tSE
D8h
15
0
1
2
3
4
5
6
7
8
23
16
24
31
Mode3
Mode0
8CLK
MSB
Figure 11. Sector Erase (SE)
● Address A23 to A21 , A15 to A0 are "Don't care.



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