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1 - Al Kossow's Bitsavers

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TMS27162048·WORD BY 8·BIT ERASABLEPROGRAMMABLE READ·ONLY MEMORIEScapacitance over recommended supply voltage range and operating free-air temperature range, fPARAMETER Typt MAXCi Input capacitance [except S (Program)) 4 6Ci(S) S (Program) input capacitance 20 30Co Output capacitance 8 121 MHzUNITpFpFpFt <strong>Al</strong>l typical values are at TA =' 25°C and nominal voltages.switching characteristics over recommended supply voltage range and operating free-air temperature rangeTMS2716-30PARAMETERTEST CONDITIONSMIN MAXtalA) Access time from address300CL = 100 pFta(S) Access time from S1201 Series 74 TTL Loadtv(A) Output data valid after address change0tf(S), tf(A) = 20 nstdis Output disable time t0 120See Figure 1tc(rd) Read cycle time300TMS2716-45MINMAXUNIT450 ns120 ns0 ns0 120 ns450 nst Value calculated from 0.5 volt delta to measured output level.T A = 25°C program characteristics over recommended supply voltage rangem··"C:lJos:cCDc:::(;'CD(I)tw(PR)tttt(PR)tsu(A)tsu(D)tsu(PE)th(A)thIDA)th(D)th(PE)tSLAXPARAMETERPulse duration, program pulseTransition times (except program pulse)Transition times, program pulseAddress setup timeData setup timeProgram enable setup timeAddress hold timeAddress hold time after program input data stoppedData hold timeProgram enable hold timeDelay time, S (Program) low to address changeMIN MAX UNIT0.1 1 ms20 ns30 2000 ns10 p's10 p's10 p's1000 ns0 ns1000 ns500 ns0 nsPARAMETER MEASUREMENT INFORMATIONv = 2.4 VOUTPUT ~ RL 3100UNDER TEST f 00 FrCl = 1 PFIGURE 1 -TYPICAL OUTPUT lOAD CIRCUIT6-44 TEXASINSTRUMENTSPOST OFFICE BOX 225012 • DALLAS. TEXAS 75265. 184

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