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TP0C31BH Folha de dados(PDF) 10 Page - Intel Corporation |
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TP0C31BH Folha de dados(HTML) 10 Page - Intel Corporation |
10 / 16 page AUTOMOTIVE 80C31BH80C51BH87C51 EXPLANATION OF THE AC SYMBOLS Each timing symbol has 5 characters The first char- acter is always a ‘T’ (stands for time) The other characters depending on their positions stand for the name of a signal or the logical status of that signal The following is a list of all the characters and what they stand for AAddress CClock DInput data HLogic level HIGH IInstruction (program memory contents) LLogic level LOW or ALE PPSEN QOutput data RRD signal TTime VValid WWR signal XNo longer a valid logic level ZFloat For example TAVLL e Time from Address Valid to ALE Low TLLPL e Time from ALE Low to PSEN Low AC CHARACTERISTICS (TA eb40 Cto a125 C VCC e 5V g10% (5V g20% EPROM Only) VSS e 0V Load Capacitance for Port 0 ALE and PSEN e 100 pF Load Capacitance for All Other Outputs e 80 pF) EXTERNAL PROGRAM AND DATA MEMORY CHARACTERISTICS Symbol Parameter 12 MHz Osc Variable Oscillator Units Min Max Min Max 1TCLCL Oscillator Frequency MHz 87C5180C51BH80C31BH 35 12 – 16 TLHLL ALE Pulse Width 127 2TCLCLb40 ns TAVLL Address Valid to ALE Low 28 TCLCLb55 ns TLLAX Address Hold After ALE Low 48 TCLCLb35 ns TLLIV ALE Low to Valid Instr In 224 4TCLCLb110 ns TLLPL ALE Low to PSEN Low 43 TCLCLb40 ns TPLPH PSEN Pulse Width 205 3TCLCLb45 ns TPLIV PSEN Low to Valid Instr In 135 3TCLCLb115 ns TPXIX Input Instr Hold After PSEN 00 ns TPXIZ Input Instr Float After PSEN 59 TCLCLb25 ns TAVIV Address Valid to Valid Instr In 312 5TCLCLb105 ns TPLAZ PSEN Low to Address Float 10 10 ns TRLRH RD Pulse Width 400 6TCLCLb100 ns TWLWH WR Pulse Width 400 6TCLCLb100 ns TRLDV RD Low to Valid Data In 252 5TCLCLb165 ns TRHDX Data Hold After RD High 0 0 ns TRHDZ Data Float After RD High 97 2TCLCLb70 ns TLLDV ALE Low to Valid Data In 517 8TCLCLb150 ns TAVDV Address Valid to Valid Data In 585 9TCLCLb165 ns TLLWL ALE Low to RD or WR Low 200 300 3TCLCLb50 3TCLCLa50 ns TAVWL Address Valid to RD or WR Low 203 4TCLCLb130 ns TQVWX Data Valid to WR Transition 23 TCLCLb60 ns TWHQX Data Hold After WR High 33 TCLCLb50 ns TRLAZ RD Low to Address Float 0 0 ns TWHLH RD or WR High to ALE High 43 123 TCLCLb40 TCLCLa40 ns 10 |
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Descrição semelhante - TP0C31BH |
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