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Motore di ricerca datesheet componenti elettronici |
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Motore di ricerca datesheet componenti elettronici |
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M28W640FCT Scheda tecnica(PDF) 43 Page - STMicroelectronics |
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M28W640FCT Scheda tecnica(HTML) 43 Page - STMicroelectronics |
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43 / 77 page  M28W640FCT, M28W640FCB DC and AC parameters 43/77 Figure 11. Power-Up and Reset AC waveforms Table 19. Power-Up and Reset AC characteristics Symbol Parameter Test Condition M28W640FCT, M28W640FCB Unit 70 85 90 10 tPHWL tPHEL tPHGL Reset High to Write Enable Low, Chip Enable Low, Output Enable Low During Program and Erase Min 505050 50 µs others Min 30 30 30 30 ns tPLPH (1)(2) 1. The device Reset is possible but not guaranteed if tPLPH < 100ns 2. Sampled only, not 100% tested. Reset Low to Reset High Min 100 100 100 100 ns tVDHPH (3) 3. It is important to assert RP in order to allow proper CPU initialization during power up or reset. Supply Voltages High to Reset High Min 505050 50 µs AI03537b tPHWL tPHEL tPHGL RP W, E, G VDD, VDDQ tVDHPH tPHWL tPHEL tPHGL tPLPH Power-Up Reset |
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