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数据搜索系统，热门电子元器件搜索 |
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数据搜索系统，热门电子元器件搜索 |
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AT80C51RA2-RLSIV 数据表(PDF) 64 Page - International Rectifier |
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AT80C51RA2-RLSIV 数据表(HTML) 64 Page - International Rectifier |
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64 / 85 page  64 4188E–8051–08/06 AT/TS8xC51Rx2 11.5.2 External Program Memory Characteristics Table 11-5. Symbol Description Table 11-6. AC Parameters for Fix Clock Symbol Parameter T Oscillator clock period TLHLL ALE pulse width TAVLL Address Valid to ALE TLLAX Address Hold After ALE TLLIV ALE to Valid Instruction In TLLPL ALE to PSEN TPLPH PSEN Pulse Width TPLIV PSEN to Valid Instruction In TPXIX Input Instruction Hold After PSEN TPXIZ Input Instruction FloatAfter PSEN TPXAV PSEN to Address Valid TAVIV Address to Valid Instruction In TPLAZ PSEN Low to Address Float Speed -M 40 MHz -V X2 mode 30 MHz 60 MHz equiv. -V standard mode 40 MHz -L X2 mode 20 MHz 40 MHz equiv. -L standard mode 30 MHz Units Symbol Min Max MinMax MinMax MinMax Min Max T 253325 5033 ns TLHLL 40 25 42 35 52 ns TAVLL 10412 5 13 ns TLLAX 10412 5 13 ns TLLIV 70 45 78 65 98 ns TLLPL 15917 10 18 ns TPLPH 55 35 60 50 75 ns TPLIV 35 25 50 30 55 ns TPXIX 000 00 ns TPXIZ 18 12 20 10 18 ns TAVIV 85 53 95 80 122 ns TPLAZ 10 10 10 10 10 ns |
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