1 - Al Kossow's Bitsavers

TMS251616,384·BIT ERASABLE PROGRAMMABLE READ·ONLY MEMORIESswitching characteristics over full ranges of recommended operating conditions (see Note 4)PARAMETERTEST CONDITIONS TMS2516-35 TMS2516-45(SEE NOTES 4 AND 5) MIN Typt MAX MIN Typt MAXtalA) Access time from address 250 350 280talS) Access time from chip select 120talPR) Access time from PD/PGM 250 350 280Output data valid aftertv(A)address changeCL = 100 pF,0 0tdislS)Output disable time from chipselect during read onlyiOutput disable time from chip1 Series 74 TTL load,trS 20 ns,tfs20 ns0 100 0tdislS) select during program 120and program verify itdislPR)Output disable timefrom PD/PGM i0 100450150450100120100UNITnsnsnsnsnsnsnst All typical values are at T A = 25°C and nominal voltages.~ Value calculated from 0.5 volt delta to measured output level.recommended timing requirements for programming T A 25°C (see Note 4)TMS2516PARAMETERMIN Typt MAXtw(PR) Pulse duration, program pulse 955trlPR) Rise time, program pulse 5tflPR) Fall time, program pulse 5tsulA) Address setup time 2tsulS) Chip-select setup time 2tsulD) Data setup time 2tsulVPP) Setup time from Vpp 0thlA) Address hold time 2thiS) Chip-select hold time 2thlD) Data hold time 2t Typical values are at nominal voltages.NOTES: 4. Timing measurement reference levels: inputs O.B 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 = S = VIL'UNITmsnsnsflsflSflsnsflSflSflsCI)Q)(.)'S;Q)C~oa::a..w4TEXASINSTRUMENTSPOST OFFICE BOX 225012 • DALLAS. TEXAS 752656-5