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NM27C512Q120 Datasheet(PDF) 5 Page - Fairchild Semiconductor |
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NM27C512Q120 Datasheet(HTML) 5 Page - Fairchild Semiconductor |
5 / 10 page ![]() 5 www.fairchildsemi.com Programming Characteristics (Note 10) and (Note 11) Symbol Parameter Conditions Min Typ Max Units tAS Address Setup Time 1 µs tOES OE Setup Time 1 µs tDS Data Setup Time 1 µs t VCS V CC Setup Time 1 µs tAH Address Hold Time 0 µs tDH Data Hold Time 1 µs tCF Chip Enable to Output Float Delay OE = VIL 060 ns t PW Program Pulse Width 45 50 105 µs tOEH OE Hold Time 1 µs tDV Data Valid from CE OE = VIL 250 ns tPRT OE Pulse Rise Time 50 ns during Programming tVR VPP Recovery Time 1 µs IPP VPP Supply Current during CE = VIL 30 mA Programming Pulse OE = V PP ICC VCC Supply Current 50 mA TR Temperature Ambient 20 25 30 °C VCC Power Supply Voltage 6.25 6.5 6.75 V V PP Programming Supply Voltage 12.5 12.75 13 V tFR Input Rise, Fall Time 5 ns VIL Input Low Voltage 0 0.45 V VIH Input High Voltage 2.4 4 V t IN Input Timing Reference Voltage 0.8 2 V tOUT Output Timing Reference Voltage 0.8 2 V Programming Waveforms Note 10: Fairchild’s standard product warranty applies to devices programmed to specifications described herein. Note 11: VCC must be applied simultaneously or before VPP and removed simultaneously or after VPP. The EPROM must not be inserted into or removed from a board with voltage applied to VPP or VCC. Note 12: The maximum absolute allowable voltage which may be applied to the VPP pin during programming is 14V. Care must be taken when switching the VPP supply to prevent any overshoot from exceeding this 14V maximum specification. At least a 0.1 µF capacitor is required across V CC to GND to suppress spurious voltage transients which may damage the device. t AS Program Program Verify Address N t CF Hi-Z t DS t DH t VPS t PW t OEH t AH 2.0V 0.8V 2.0V 0.8V 6.25V Addresses Data OE/VPP VCC 0.8V t OES Data Out Valid ADD N Data In Stable ADD N 2.0V 0.8V t DV tPRT 12.75V t VCS t VR CE/PGM DS010834-5 |
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