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27C04AFT-15IL Datasheet(PDF) 3 Page - Microchip Technology |
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27C04AFT-15IL Datasheet(HTML) 3 Page - Microchip Technology |
3 / 8 page © 1996 Microchip Technology Inc. DS11126F-page 3 28C04A TABLE 1-3: READ OPERATION AC CHARACTERISTICS FIGURE 1-1: READ WAVEFORMS AC Testing Waveform: VIH = 2.4V; VIL = 0.45V; VOH = 2.0V; VOL = 0.8V Output Load: 1 TTL Load + 100 pF Input Rise and Fall Times: 20 ns Ambient Temperature: Commercial (C): Tamb = 0˚C to +70˚C Industrial (I): Tamb = -40˚C to +85˚C Parameter Sym 28C04A-15 28C04A-20 28C04A-25 Units Conditions Min Max Min Max Min Max Address to Output Delay tACC 150 200 250 ns OE = CE = VIL CE to Output Delay tCE 150 200 250 ns OE = VIL OE to Output Delay tOE 70 80 100 ns CE = VIL CE to OE High Output Float tOFF 050055070 ns Output Hold from Address, CE or OE, whichever occurs first tOH 000 ns Endurance — 1M — 1M — 1M — cycles 25 °C, Vcc = 5.0V, Block Mode (Note) Note: This parameter is not tested but guaranteed by characterization. For endurance estimates in a specific applica- tion, please consult the Total Endurance Model which can be obtained on our BBS or website. Address CE VIH VIL VIH VIL VIH VIL OE Data WE VOH VOL VIH VIL Address Valid High Z Valid Output tACC (1) tOFF is specified for OE or CE, whichever occurs first (2) OE may be delayed up to t CE - t OE after the falling edge of CE without impact on tCE (3) This parameter is sampled and is not 100% tested High Z tOH tOFF(1,3) Notes: tOE(2) tCE(2) |
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