LE25S161 datasheet(25/54 Pages) ONSEMI

tên linh kiện	LE25S161

Giải thích chi tiết về linh kiện	Serial Flash Memory

PDF	54 Pages

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LE25S161

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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

High Impedance

tSE

D8h

Mode3

Mode0

8CLK

MSB

Figure 11. Sector Erase (SE)

● Address A23 to A21 , A15 to A0 are "Don't care.

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