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AM29DL164D 数据表(PDF) 16 Page - Advanced Micro Devices |
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AM29DL164D 数据表(HTML) 16 Page - Advanced Micro Devices |
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16 / 57 page ![]() 16 DS42515 SET# pin to V ID (8.5 V – 12.5 V). During this mode, formerly protected sectors can be programmed or erased by selecting the sector addresses. Once V ID is removed from the RESET# pin, all the previously pro- tected sectors are protected again. Figure 1 shows the algorithm, and Figure 25 shows the timing diagrams, for this feature. Figure 1. Temporary Sector Unprotect Operation START Perform Erase or Program Operations RESET# = V IH Temporary Sector Unprotect Completed (Note 2) RESET# = V ID (Note 1) Notes: 1. All protected sectors unprotected (If WP#/ACC = V IL, outermost boot sectors will remain protected). 2. All previously protected sectors are protected once again. |
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