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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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AT83SND1CXXX-ROTIL 데이터시트(PDF) 190 Page - ATMEL Corporation |
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AT83SND1CXXX-ROTIL 데이터시트(HTML) 190 Page - ATMEL Corporation |
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190 / 212 page  190 4109J–8051–10/06 AT8xC51SND1C 22.3.3.2 Timings Test conditions: capacitive load on all pins= 50 pF. Table 156. External IDE 16-bit Bus Cycle - Data Read AC Timings V DD = 2.7 to 3.3 V, TA = -40 to +85°C Table 157. External IDE 16-bit Bus Cycle - Data Write AC Timings VDD = 2.7 to 3.3 V, TA = -40 to +85°C Symbol Parameter Variable Clock Standard Mode Variable Clock X2 Mode Unit Min Max Min Max TCLCL Clock Period 50 50 ns TLHLL ALE Pulse Width 2·TCLCL-15 TCLCL-15 ns TAVLL Address Valid to ALE Low TCLCL-20 0.5·TCLCL-20 ns TLLAX Address hold after ALE Low TCLCL-20 0.5·TCLCL-20 ns TLLRL ALE Low to RD Low 3·TCLCL-30 1.5·TCLCL-30 ns TRLRH RD Pulse Width 6·TCLCL-25 3·TCLCL-25 ns TRHLH RD high to ALE High TCLCL-20 TCLCL+20 0.5·TCLCL-20 0.5·TCLCL+20 ns TAVDV Address Valid to Valid Data In 9·TCLCL-65 4.5·TCLCL-65 ns TAVRL Address Valid to RD Low 4·TCLCL-30 2·TCLCL-30 ns TRLDV RD Low to Valid Data 5·TCLCL-30 2.5·TCLCL-30 ns TRLAZ RD Low to Address Float 0 0 ns TRHDX Data Hold After RD High 0 0 ns TRHDZ Data Float After RD High 2·TCLCL-25 TCLCL-25 ns Symbol Parameter Variable Clock Standard Mode Variable Clock X2 Mode Unit Min Max Min Max TCLCL Clock Period 50 50 ns TLHLL ALE Pulse Width 2·TCLCL-15 TCLCL-15 ns TAVLL Address Valid to ALE Low TCLCL-20 0.5·TCLCL-20 ns TLLAX Address hold after ALE Low TCLCL-20 0.5·TCLCL-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 |
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