memory products - Al Kossow's Bitsavers

M27256BLOCK DIAGRAMVeco----­GNOo-­V"" 0-----DA.TA OUTPUTS00-07OUTPUTBUFFERSyDECODER'GATINGAO~A14'ADDRESSINPUTSDECODER262,144811CEll MATRIX5-7571ABSOLUTE MAXIMUM RATINGSSymbolParameterValueVI All input or Output voltages with respect to ground + 6.25 to - 0.6Vpp Supply voltage with respect to ground +14 to -.0,6TambAmbient temperature under bias IF1 -.10 to +80IF6 - 50 to +95Tsta Storage temperature range ~'65 to +,125Voltage on pin ,24 with respect to ground, , + 13.5 to -0.6 VStresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress rating onlyand functional operation of the device at these or any other conditions above those indicated in the operational sections of this specificationis not implied. Expbsure to absolute maximum rating conditions for extended periods may affect device reliability,UnitV.v·C·C·COPERATING MODES-:::------::SCEVpp Vee OUTPUTSOE A9 AO (11-13,(20) (22) (24) (10) (1) (28)MODE•15-19)READ VIL VIL X X Vee Vee DOUTOUTPUT DISABLE VIL VIH X X Vee .,Vee HIGHZSTANDBY VIH X X X Vee ' Vee HIGH ZPROGRAM VIL VIH X X Vpp Vee DINVERIFY VIH VIL >,< X Vpp Vee DOUTOPTIONAL VERIFY VIL VIL X X Vpp Vee 'DOUTPROGRAM iNHIBiT VIH VIH X X Vpp Vee HIGHZELECTRONIC SiGNATURE VIL VrL VH VIL Vee Vee MAN.CODEVIL VIL VH VIH Vee Vee DEV.CODENOTE: X can be VIH or VIL.VH= .12V ±O.5V211064