MEMORY DATABOOK - Al Kossow's Bitsavers

----------------. DYNAMIC RAM· MSC2304YS9/KS9 •CAPACITANCE(Ta = 25°C, f = 1 MHz)ParameterInput Capacitance (Ao -As)------Input Capacitance (RAS, CAS, WE)Data Input/OutputCapacitance (DO)Input Capacitance (CAS9)Input Capacitance (09)Output Capacitance (09)SymbolCIN1CIN2COOCIN3CIN4COUTTyp. Max. Unit40 70 pF40 75 pF7 20 pF5 10 pF4 10 pF4 15 pFCapacitance measured with Boonton Meter.AC CHARACTERISTICSParameter Symbol UnitsRefresh period tREF msRandom read or writecycle time tRC nsPage mode cycle time tpc nsMSC2304-1 2YS/ MSC2304-15YS/KSKSMin. Max. Min. Max.4 4230 260125 145NoteAccess time from RAS tRAC nsAccess time from CAS tCAC nsOutput buffer turn-offdelay tOFF nsTransition time tT nsRAS precharge time tRP nsRAS pulse width tRAS nsRAS hold time tRSH nsCAS precharge time tcp nsCAS pulse width tCAS nsCAS hold time tCSH ns120 150 4,660 75 5,60 40 0 403 50 3 50100 100120 10,000 150 10,00060 7555 6060 10,000 75 10,000120 150259