MEMORY DATABOOK - Al Kossow's Bitsavers

• STATIC RAM· MSM5126RS •• -------------------READ CYCLE~------------tRC--------------~A.'VA,.I/ONotes: 1. A Read occurs during the overlap of a low -es, a low OE and a high WE.2. tcx is specified from CS or OE, whichever occurs last.3. tOTO is specified from CS or OE, whichever occurs first.4. tOHA and tOTO are specified by the time when DATA OUT is floating.WRITE CYCLE(Vcc = 5V ± 10%, Ta = _30°C to +85°C)ParameterSymbolMSM5126-20 MSM5126-25Min. Max. Min. Max.Write Cycle Time twc 200 250Address to Write Setup Ti me tAS. 0 0Write Time tw 160 200Write Recovery Time tWR 10 10Data Setup Time tDS 80 120Data Hold from Write Time tDH 0 0Output 3-State from Write tOTW 80 80UnitnsnsnsnsnsnsnsNotes:1. A Write Cycle occurs during the overlap of a low CS and a low WE.2. OE may be both high and low in a Write Cycle.3. tAS is specified from CS or WE, whichever occurs last.4. tw is an overlap time of a low CS and a low WE.5. twR, tDS and tDH are specified from CS or WE, whichever occurs first.6_ tOTW is specified by the time when DATA OUT is floating, not defined by output level.7. When I/O pins are Data output mode, don't force inverse signal to those pins.292