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AT89C5132-ROTIL Folha de dados(PDF) 160 Page - ATMEL Corporation |
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AT89C5132-ROTIL Folha de dados(HTML) 160 Page - ATMEL Corporation |
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160 / 181 page ![]() 160 4173D–USB–02/06 AT89C5132 Table 110. External 8-bit Bus Cycle – Data Write AC Timings V DD = 2.7 to 3.3V, TA = -40° to +85°C 24.2.1.3 Waveforms Figure 24-8. External 8-bit Bus Cycle – Data Read Waveforms Symbol Parameter Variable Clock Standard Mode Variable Clock X2 Mode Unit Min Max Min Max T CLCL Clock Period 50 50 ns T LHLL ALE Pulse Width 2·T CLCL-15 T CLCL-15 ns T AVLL Address Valid to ALE Low T CLCL-20 0.5·T CLCL-20 ns T LLAX Address hold after ALE Low T CLCL-20 0.5·T CLCL-20 ns T LLWL ALE Low to WR Low 3·T CLCL-30 1.5·T CLCL-30 ns T WLWH WR Pulse Width 6·T CLCL-25 3·T CLCL-25 ns T WHLH WR High to ALE High T CLCL-20 T CLCL+20 0.5·T CLCL-20 0.5·T CLCL+20 ns T AVWL Address Valid to WR Low 4·T CLCL-30 2·T CLCL-30 ns T QVWH Data Valid to WR High 7·T CLCL-20 3.5·T CLCL-20 ns T WHQX Data Hold after WR High T CLCL-15 0.5·T CLCL-15 ns T AVDV T LLAX T RHDX T RHDZ T AVLL T AVRL P2 P0 RD ALE T LHLL T RLRH Data In A15:8 T RLAZ T LLRL T RHLH T RLDV D7:0 A7:0 |
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