MEMORY DATABOOK - Al Kossow's Bitsavers

________________ • DYNAMIC RAM' MSC2301 YS9/KS9 •CAPACITANCE(Ta = 25°C, f = 1 MHz)ParameterSymbolTyp.Max.UnitInput Capacitance (AD ~ A7)Input Capacitance (RAS, CAS, WE)Data Input/OutputCapacitance (DO)Input Capacitance (CAS9)Input Capacitance (09)Output Capacitance (09)Capacitance measured with Boonton Meter.CIN1 40CIN2 40COO 7CIN3 5CIN4 4COUT 470 pF75 pF20 pF10 pF10 pF15 pFAC CHARACTERISTICS(Recommended operating conditions unless otherwise noted.)Note1,2,3Parameter Symbol UnitsMSC2301-12YS/KSMin. Max.MSC2301-15YS/KSMin.Max.NoteRefresh period tREF ms 22Random read or writecycle timetRCns 220260Page mode cycle time tpc ns 120145Access time from RAS tRAC ns 120--Access time from CAS tCAC ns 60150 4,675 5,6Output buffer turn-offdelaytOFF ns 0 350 40Transition time tT ns 3 35RAS precharge time tRP ns 90RAS pulse width tRAS ns 120 10,000RAS hold time tRSH ns 60CAS precharge time tcp ns 50CAS pulse width tCAS ns 60 10,000CAS hold time tCSH ns 1203 35100150 10,000756075 10,000150237