1 - Al Kossow's Bitsavers

TMS276465,536-BIT ERASABLE PROGRAMMABLE READ-ONLY MEMORYelectrical characteristics over full ranges of recommended operating conditionsIIIPARAMETER TEST CONDITIONS MIN Typt MAX UNITVOH High-level output voltage IOH = -400 p,A 2.4 VVOL Low-level output voltage IOL = 2.1 rnA 0.45 VII Input current (load) VI = 0 V to 5.25 V ±10 p,A10 Output current (leakage) Vo = 0.4 V to 5.25 V ±10 p,AIpPl Vpp supply current (read) Vpp = 5.25 V 5 rnAIpP2 Vpp supply current (program) i: and ~ at VIL 50 rnAICCl VCC supply current (standby) Eat VIH 35 rnAICC2 VCC supply current (active) E and G at VIL 100 rnAt Typical values are at T A = 25°C and nominal voltages.capacitance over recommended supply voltage range and operating free-air temperature range, f1 MHzPARAMETER TEST CONDITIONS MIN Typt MAX UNITCi Input capacitance VI = 0 V 4 6 pFCo Output capacitance Vo = 0 V 8 12 pFt Typical values are at T A = 25°C and nominal voltages.switching characteristics over recommended supply voltage range and operating free-air temperature range,CL = 100 pF, 1 Series 74 TTL load (see note 2 and figure 2)PARAMETERTMS2764-20 TMS2764-25 TMS2764-30 TMS2764-35 TMS2764-45MIN MAX MIN MAX MIN MAX MIN MAX MIN MAXtalA) Access time from address 200 250 300 350 450 nstalE) Access time frm E 200 250 300 350 450 nsten (G) Output enable time from G 75 100 120 150 150 nstdis(G)t Output disable time from G 0 60 0 85 0 105 0 130 0 130 nsOutput data valid time aftertv (A) change of address, E, or G, 0 0 0 0 0 nswhichever occurs firstNOTE 2:Fall all switching characteristics and timing measurements, input timing reference levels are 0.8 V and 2 V; output timing reference levels are 0.8 Vand 2 V.t Value calculated from 0.5 volt delta to measured output level; tdis(G) is specified from G or f. whichever occurs first. Refer to read cycle timing diagram.UNITf/)Q)(.)-s;Q)c~oa:Q.W184TEXASINSTRUMENTSPOST OFFICE BOX 225012 • OALLAS. TEXAS 752656-57