MEMORY DATABOOK - Al Kossow's Bitsavers

--------------------1. EPROM· MSM27256AS •FUNCTION TABLE~eE OE Vpp vee(20) (22) (1 ) (28)ModeRead VIL VIL +5V +5V DoutOutputsOutput Disable VIL VIH +5V +5V High impedanceStand-by VIH - +5V +5V High impedanceProgram VIL VIH +12.5V +6V DINProgram Verify litH VIL +12.5V +6V DoutProgram Inhibit VIH VIH +12.5V +6V High impedance-; Can be either VIL or VIHABSOLUTE MAXIMUM RATINGSTemperature Under BiasStorage TemperatureAll Input/Output VoltagesVee Supply VoltageProgram VoltagePower Assembly VoltageThe voltage with respect to GND.Ta ........................ -10o e - 800 eTstg .... . . . . . . . . . . . . . . . . .. -55°e - 1250 eVIN. VOUT .............. " -0.6V - 13.5VVee············· ......... -0.3V -7VVpp ...................... -0.6V - 13.5VPD ....................... 1.5WELECTRICAL CHARACTERISTICSRECOMMENDED OPERATION CONDITIONLimitParameter Symbol OperatingRemarks SymbolMin. Typ. Max.TemperatureVee Power SupplyVoltageVee 4.75 5.0 5.25 VVpp Voltage Vpp 4.75 5.0 5.25 V"H" Level Input aoc -70o e Vee=5V±5%Voltage VIH 2.00 - 6.25Vpp=VeeV"L" Level InputVoltage VIL -0.1 - 0.8 VThe voltage with respect to GND379