1 - Al Kossow's Bitsavers

SMJ251616,384-BIT ERASABLE PROGRAMMABLE READ-ONLY MEMORIESswitching characteristics over full ranges of recommended operating conditions (see Note 4)talA)ta(S)ta(PR)tv(A)tdis(S)tdis(S)tdis(PR)PARAMETERAccess time from addressAccess time from chip selectAccess time from PD/PGMOutput data valid afteraddress changeOutput disable time from chipselect during read onlytOutput disable time from chipselect during programand program verifytOutput disable timefrom PD/PGMtTEST CONDITIONS SMJ2516-35 SMJ2516-45(SEE NOTES 4 AND 5) MIN Typt MAX MIN Typt MAX250 350280 450120150250 350280 450CL = 100 pF,001 Series 54 TTL load,t r :520 ns,0 100 0100tf:520 ns1201200 100100UNITnsnsnsnsnsnsnst All typical values are at T C = 25°C and nominal voltages.t Value calculated from 0.5 volt delta to measured outputrecommended timing requirements for programming T C 25°C (see Note 4)SMJ2516PARAMETERMIN Typt MAXtw(PR) Pulse duration, program pulse955tr(PR) Rise time, program pulse5tf(PR) Fall time, program pulse5tsu(A) Address setup time2tsu(S) Chip-select setup time2tsu(D) Data setup time2tsu(VPP) Setup time from VPP0th(A) Address hold time2thIS) Chip-select hold time2th(D) Data hold time2t Typical values are at nominal voltages.NOTES: 4. Timing measurement reference levels: inputs 0.8 V and 2 V, outputs 0.65 V and 2.2 V.5. Common test conditions apply for tdis except during programming. For talA), taIS)' and tdis' PDIPGM = 5 = VIL'UNITmsnsnsp'sp'sp'snsp'sp'sp'senQ)(,)·SQ)c~oa:a.wTEXASINSTRUMENTSPOST OFFICE BOX 225012 • DALLAS. TEXAS 752656-7