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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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AT45DB321C датащи(PDF) 19 Page - ATMEL Corporation |
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AT45DB321C датащи(HTML) 19 Page - ATMEL Corporation |
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19 / 37 page  19 AT45DB321C [Preliminary] 3387B–DFLSH–9/04 Note: 1. Maximum specified frequency for SPI compatibility is 33 MHz. 2. Value are based on device characterization, not 100% tested in production. AC Characteristics – Serial Interface Symbol Parameter Min Typ Max Units fSCK (1) SCK Frequency 40 MHz f CAR (1) SCK Frequency for Continuous Array Read 40 MHz tWH SCK High Time 10 ns tWL SCK Low Time 10 ns t CS Minimum CS High Time 250 ns tCSS CS Setup Time 250 ns tCSH CS Hold Time 250 ns t CSB CS High to RDY/BUSY Low 150 ns tSU Data In Setup Time 3 ns tH Data In Hold Time 6 ns t HO Output Hold Time 0 ns tDIS Output Disable Time 10 ns tV Output Valid 12 ns t XFR Page to Buffer Transfer Time 250 µs tEP (2) Page Erase and Programming Time 20 50 ms tP (2) Page Programming Time 14 ms t PE (2) Page Erase Time 10 40 ms tBE (2) Block Erase Time 30 60 ms t RST RESET Pulse Width 10 µs t REC RESET Recovery Time 1µs tWPE WP Low to Protection Enabled 1 µs t WPD WP High to Protection Disabled 1 µs |
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