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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PSD833F2 датащи(PDF) 89 Page - STMicroelectronics |
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PSD833F2 датащи(HTML) 89 Page - STMicroelectronics |
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89 / 110 page  89/110 PSD813F2, PSD833F2, PSD834F2, PSD853F2, PSD854F2 Table 56. READ Timing (3V devices) Note: 1. RD timing has the same timing as DS, LDS, UDS, and PSEN signals. 2. RD and PSEN have the same timing for 8031. 3. Any input used to select an internal PSD function. 4. In multiplexed mode latched address generated from ADIO delay to address output on any Port. 5. RD timing has the same timing as DS, LDS, and UDS signals. Symbol Parameter Conditions -12 -15 -20 Turbo Off Unit MinMax MinMax MinMax tLVLX ALE or AS Pulse Width 26 26 30 ns tAVLX Address Setup Time (Note 3) 910 12 ns tLXAX Address Hold Time (Note 3) 912 14 ns tAVQV Address Valid to Data Valid (Note 3) 120 150 200 + 20 ns tSLQV CS Valid to Data Valid 120 150 200 ns tRLQV RD to Data Valid 8-Bit Bus (Note 5) 35 35 40 ns RD or PSEN to Data Valid 8-Bit Bus, 8031, 80251 (Note 2) 45 50 55 ns tRHQX RD Data Hold Time (Note 1) 00 0 ns tRLRH RD Pulse Width 38 40 45 ns tRHQZ RD to Data High-Z (Note 1) 38 40 45 ns tEHEL E Pulse Width 40 45 52 ns tTHEH R/W Setup Time to Enable 15 18 20 ns tELTL R/W Hold Time After Enable 0 0 0 ns tAVPV Address Input Valid to Address Output Delay (Note 4) 33 35 40 ns |
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