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M500000009 Fiches technique(PDF) 46 Page - Advanced Micro Devices |
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M500000009 Fiches technique(HTML) 46 Page - Advanced Micro Devices |
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46 / 63 page ![]() November 7, 2002 Am50DL128CG 45 P R E L I M I NARY FLASH AC CHARACTERISTICS OE# CE#f Addresses VCCf WE# Data 2AAh SADD tGHWL tAH tWP tWC tAS tWPH 555h for chip erase 10 for Chip Erase 30h tDS tVCS tCS tDH 55h tCH In Progress Complete tWHWH2 VA VA Erase Command Sequence (last two cycles) Read Status Data RY/BY# tRB tBUSY Notes: 1. SADD = sector address (for Sector Erase), VA = Valid Address for reading status data (see “Flash Write Operation Status”. 2. These waveforms are for the word mode. 3. CE#f refers to active flash device being addressed (either CE#f1 or CE#f2). The chip enable input of the inactive flash device must be held high during this operation. Figure 19. Chip/Sector Erase Operation Timings |
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