1 - Al Kossow's Bitsavers

TMS416465,536-811 DYNAMIC RANDOM-ACCESS MEMORYrecommended operating conditionsPARAMETERTMS4164MIN NOM MAXSupply voltage, VOO 4.5 5 5.5 VSupply voltage, VSS 0 VHigh-level input voltage, VIHI VOO = 4.5 V 2.4 4.8I VOO = 5.5 V2.4 6VLow-level input voltage, VIL (see Notes 2 and 3) -0.6 0.8 VOperating free-air temperature, T A 0 70 DCUNITNOTES:2. The algebraic convention, where the more negative (less positive) limit is designated as minimum, is used in this data sheet for logic voltagelevels only.3. Due to input protection circuitry. the applied voltage may begin to clamp at -0.6 V. Test conditions should comprehend this occurrence.electrical characteristics over full ranges of recommended operating conditions (unless otherwise noted)PARAMETERVOH High-level output voltage IOH = -5 mAVOL Low-level output voltage 10L = 4.2 mAIIInput current (leakage)TESTCONDITIONSVI=O V to 5.8 V, VOO=5 V,All other pins = 0 VVa = 0.4 to 5.5 V,10 Output current (leakage) VOO = 5 V,CAS high1001 *Average operating currentduring read or write cycle1002§ Standby current1003* Average refresh current RAS low,tc = minimum cycleAfter 1 memory cycle,RAS and CAS hightc = minimum cycle,CAS hightc(P) = minimum cycle.1004 Average page-mode current RAS low,CAS cyclingt All typical values are at T A = 25°C and nominal supply voltages.; Additional information on last page.§ VIL > -0.6 V.TMS4164-12 TMS4164-15MIN TYpt MAX MIN TVpt MAXUNIT2.4 2.4 V0.4 0.4 V±10 ±10 /LA±10 ±10 /LA40 48 35 45 mA3.5 5 3.5 5 mA28 40 25 37 mA28 40 25 37 mA...o~~::::JCJ)..>-oEQ)~"'Cr:::::CO~~a:(J-eCOr:::::>­CTEXASINSTRUMENTSPOST OFFICE BOX 225012 • DALLAS. TEXAS 752654-43