AT45DB021E datasheet(26/74 Pages) DIALOG

tên linh kiện	AT45DB021E

Giải thích chi tiết về linh kiện	2-Mbit DataFlash (with Extra 64 kbits) 1.65 V Minimum SPI Serial Flash Memory

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AT45DB021E

DS-AT45DB021E—8789J—03/2021

Figure 8-6. Read Sector Protection Register Timing

8.3.4

About the Sector Protection Register

The Sector Protection Register is subject to a limit of 10,000 erase/program cycles. Users are encouraged to

carefully evaluate the number of times the Sector Protection Register is modified during the course of the

application’s life cycle. If the application requires that the Security Protection Register be modified more than the

specified limit of 10,000 cycles because the application must temporarily unprotect individual sectors (sector

protection remains enabled while the Sector Protection Register is reprogrammed), then the application must limit

this practice. Instead, a combination of temporarily unprotecting individual sectors, along with disabling sector

protection completely, must be implemented by the application to ensure that the limit of 10,000 cycles is not

exceeded.

32h

Data

n + 1

Each transition represents eight bits

Data

n + 7

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