mitsubishi - Al Kossow's Bitsavers

MITSUBISHI MICROCOMPUTERSMSL81S6P204'8-BIT STATIC RAM WITH I/O PORTS AND TIMERTIMING REQUIREMENTS (Ta=O~70'C, Vcc=SV±S%, unless otherwise noted)AlternativeSymbol Parameter Test conditionssymboltSU(A-L) Add,ress setup time before latch tALth(L-A) Address hold time after latch tLAth(L-RWH) Read/write hold time after latchtw(L) Latch pulse width tLLth(RW-L) Latch hold time after read/write tCLtW(RWL) Read/write low-level pulse width tcctsu(o-W) Data setup time before write ~towth(w-o) Data hold time after write twotW(RWH) Read/write high-level pulse width tRYtSU(P-R) Port setup time before read t pRth(R-P) Port hold time after read tRPtW(STB) Strobe pulse width tsstSU(P-STB) Port setup time before strobet LCtpssth(STB-P) Port hold time after strobe tpHStw ( ~H) Timer input high-level pulse width t2tw ( ~ L) Timer input low-level pulse width t,t c ( ~) Timer input cycle time tCYCt r( ~ ) Timer input rise time trtf( ~) Timer input fall time tfLimitsUnitMin Typ Max50 ns80 ns100 ns100 ns20 ns250 ns150 ns0 ns300 ns70 ns50 ns200 ns50 ns120 ns120 ns80 ns320 ns30 ns30 nsSWITCHING CHARACTERISTICS (T~=O~70'C, Vcc=SV±S%, unless otherwise noted.)NoteSymbolParametertPXV(R-OQ) Propagation time from read to data output tROtPZX(A-OQ) Propagation time from address to data output tADtPVZ(R-OQ) Propagation time from read to data floating (Note 7) t ROF'tPHL(W-P)tPLH(W_P)tPLH(STB-BF)tPHL(R-BF)IpLH(sTB,INTR)tpHL( R,INTR)tPHL(STB-BF)tPLH(W-BF)tPHL(W-INTR)tpHL( ~-OUT)tpLH( ~ -OUT)tPZX(R-OQ)Propagation time from write to data outputPropagation time from strobe to SF flagPropagation time from read to SF flagPropagation time from strobe to interruptPropagation time from read to interruptPropagation time from strobe to SF flagPropagation time from write to SF flagPropagation time from write to interruptPropagation time from timer input to timer outputpropagation time from read to data enableMeasurement conditions c= 150pFMeasurement conditions of note 6 are not applied.AlternativetwptwptSBFtRBEtSItROItSBEtWBFtWIhLtTHtRDEsymbolTest conditionsLimitsUnitMin Typ Max170 ns400 ns100 ns400 ns400 ns400 ns400 ns400 ns400 ns400 ns400 ns400 ns10 ns6-52• ,MITSUBISHI.... ELECTRIC '