memory products - Al Kossow's Bitsavers

TS27C256QBLOCK DIAGRAMVee 0----.GND 0---------­Vpp 0-----DATA OUTPUTS00-07ANDiiE.ffPROGRAMlOGICOuTPUTBUFFERSDECODERy .GA'lINGAO~A14AOQRESSINPUTSDECODER262.14481TCELL MATRIX5-7571ABSOLUTE MAXIMUM RATINGS(l)SymbolTambTstgVpp(2)VIN(2)PoParameterOperating temperature rangeTS27C256CQTS27C256VQStorage temperature rangeSupply voltageInput voltagesExcept VpP.Max power dissipationA9A9Lead temperature(Soldering: 10 seconds)+300°CNotes: 1. "Maximum ratings" are those values beyond which the safety of the device cannot be guaranteed. Except for "Operating temperaturerange" they are not meant to imply that the devices should be operated at these limits. The table of '!Electrical characteristics"provides conditions for actual device operation.2. With respect to GNOValueTL to THo to+ 70-40 to+85-65 to+ 125-0.6 to+14- 0.6 to + 13.5-0.6 to+6.251.5Unit°C°CVVWOPERATING MODES~S CE OE A9 Vpp Vee OUTPUTSMODE (20) (22) (24) (1) (28) (11-13 15-19)READ VIL VIL X Vee Vee DOUTOUTPUT DISABLE VIL VIH X Vee Vee Hi-ZSTANDBY VIH X X Vee Vee Hi-ZHIGH SPEED PROGRAMMING VIL VIH X Vpp Vee DINPROGRAM VERIFY VIH VIL X Vpp Vee DOUTPROGRAM INHIBIT VIH VIH X Vpp Vee Hi-ZELECTRONIC SIGNATURE(3) VIL VIL VH(2) Vee Vee CODENotes: 1 - X can be either VIL or VIH - 2 - VH=12.0V±0.5V3 - All address lines at VIL except A9 and AO that is toggled from VIL (manufacturer code: 98) to VIH (type code: 04).2/9122