1 - Al Kossow's Bitsavers

GLOSSARY/TIMING CONVENTIONS/DATA SHEET STRUCTUREVery-Large-Scale Integration (VLS!) - The description of any IC technology that is much more complex than large-scale integration(LSI), and involves a much higher equivalent gate count. At this time an exact definition including a minimumgate count has not been standardized by JEDEC or the IEEE.Volatile Memory -A memory in which the data content is lost when power supplied is disconnected.Word -Write -A series of one or more bits that occupy a given address location and that can be stored and retrieved in parallel.A memory operation whereby data is written into a desired address location.Write Enable - A control signal that when true causes the memory to assume the write mode, and when false causes it toassume the read mode.PART 11- OPERATING CONDITIONS AND CHARACTERISTICS (INCLUDING LETTER SYMBOLS)CapacitanceCurrentThe inherent capacitance on every pin, which can vary with various inputs and outputs.Example symbology:Ci Input capacitanceCo Output capacitanceCi(D) Input capacitance, data inputHigh-level input current, IIHThe current into an input when a high-level voltage is applied-to that input.High-level output current, 10HThe current into * an output with input conditions applied that according to the product specification will establish a·hig!;l level at the output.Low-level input current, IlLThe current into an input when a low-level voltage is applied to that input.Low-level output current, 10LThe current into * an output with input conditions applied that according to the product specification will establish alow level at the output.Off-state Ihigh-impedance-state) output current lof a three-state output), 10ZThe current into * an output having three-state capability with input conditions applied that according to the productspecification will establish the high-impedance state at the output.Short-circuit output current, lOSThe current into * an output when the output is short-circuited to ground lor other specified potential) with input conditionsapplied to establish the output logic level farthest from ground potential (or other specified potential).Supply current IBB' ICC, 100, IppThe current into, respectively, the VBB, VCC, VDD, Vpp supply terminals.Operating Free-Air TemperatureQ).....::s(.).. ::s...CJ)...Q)Q)..c:CJ)...COCOQ-enco"+:cQ)>Co(.)C)C"si=-~COeneno(5The temperature (T A) range over which the device will operate and meet the specified electrical characteristics.Operating Case TemperatureThe case temperature IT C) range over which the device will operate and meet the specified electrical characteristics." Current out of a terminal is given as a negative value.TEXAS INSTRUMENTSINCORPORATEDPOST OFFICE BOX 225012 • DALLAS, TEXAS 752653-3