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UPD78P014 数据表(PDF) 46 Page - NEC |
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UPD78P014 数据表(HTML) 46 Page - NEC |
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46 / 62 page ![]() 46 µPD78P014 Program Operation AC Characteristics (Ta = 25 ± 5 °C, VDD = 6.0 ± 0.25 V, VPP = 12.5 ± 0.3 V, VSS = 0 V) Note Corresponding µPD27C256A symbol. MIN. TYP. MAX. Unit 2 µs 2 µs 2 µs 2 µs 2 µs 0 130 ns 1ms 1ms 0.95 1.0 1.05 ms 2.85 78.75 ms 1 µs Parameter Address setup time (to CE ↓) OE ↓ delay time from data Input data setup time (to CE ↓) Address hold time (from CE ↑) Input data hold time (from CE ↑) Output data hold time (from OE ↑) VPP setup time (to CE ↓) VDDP setup time (to CE ↓) Initial program pulse width Additional program pulse width Data output time from OE ↓ Symbol tSAC tDDOO tSIDC tHCA tHCID tHOOD tSVPC tSVDC tWL1 tWL2 tDOOD Note Corresponding µPD27C256A symbol. PROM Mode Setting AC Characteristics (Ta = 25 ± 5 °C, VSS = 0 V) Parameter Symbol Test Conditions MIN. TYP. MAX. Unit PROM mode setup time tSMA 10 µs Read Operation AC Characteristics (Ta = 25 ± 5 °C, VDD = 5.0 ± 0.5 V, VPP = VDD, VSS = 0 V) Symbol SymbolNote tDAOD tACC tDCOD tCE tDOOD tOE tHCOD tDF tHAOD tOH Parameter Data output time from address Data output time from CE ↓ Data output time from OE ↓ Data hold time (from OE ↑) Data hold time (from address) MIN. TYP. MAX. Unit 200 ns 200 ns 75 ns 060 ns 0ns SymbolNote tAS tOES tDS tAH tDH tDF tVPS tVDS tPW tOPW tOE Test Conditions Test Conditions |
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