MEMORY DATABOOK - Al Kossow's Bitsavers

• STATIC RAM· MSM5128RS •• ------------------_DC CHARACTERISTICSParam- MSM5128-12 MSM5128-15 MSM5128-20SymboleterMin. Typ. Max. Min. Typ. Max. Min. Typ. Max.InputLeakage III -1CurrentOutputLeakage ILO -1CurrentOutputVoltageVOH 2.4VOLTai 250 CStandbyICCS 60°CSupplyCurrent 85°COperatingSupplyCurrentICCS1 0.3ICCA4040110.40.21.016072-1-12.40.33737UnitTest Condition1 -1 1 /J.A VIN=OtoVCCCS=VIHor1 -1 1 /J.A OE = VIHVI/O = 0 to VCC2.4 V IOH =-1 mA0.4 0.4 V0.2 0.1 1.01.0 10 /J.A501 0.3 1 mA55 35 50 mA66 35 60 mAIOL =4 mA(5128-12)IOL=2.1 mA(5128-15/20)CS;; VCC - 0,2VVIN = 0 to VCCCS = VIHtcyc = Min. cycleMin.cycleTa = 0-85°CTa=-40-85° CAC CHARACTERISTICSTest ConditionParameterI nput Pulse LevelInput Aise and Fall TimesI nput and OutputTiming Aeference LevelOutput Load10 ns1.5VConditions--------------~--------------------------------------CL =100 pF, 1 TTL GateREAD CYCLE(Vcc = 5V ± 10%, Ta = -4o"C to +85° C)MSM5128-12 MSM5128-15 MSM5128-20Parameter Symbol UnitMin. Max. Min. Max. Min. Max.Aead Cycle Time tAC 120 150 200 nsAdd ress Access Tim e tAC 120 150 200 nsChip Select Access Time tco 120 150 200 nsOutput Enable to Output Valid tOE 80 100 120 nsChip Selection to Output Active tcx 10 15 20 nsOutput Hold Time FromAddress Change tOHA 10 15 20nsOutput 3-state from Deselection tOTD 0 50 0 50 0 60 ns280