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TM4EP72CJN-70 Datasheet(PDF) 11 Page - Texas Instruments |
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TM4EP72CJN-70 Datasheet(HTML) 11 Page - Texas Instruments |
11 / 22 page TM4EP64BJN, TM4EP64BPN, TM4EP64CJN, TM4EP64CPN 4194304 BY 64-BIT TM4EP72BJN, TM4EP72BPN, TM4EP72CJN, TM4EP72CPN 4194304 BY 72-BIT EXTENDED-DATA-OUT DYNAMIC RAM MODULES SMMS682A – AUGUST 1997– REVISED MARCH 1998 11 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443 capacitance over recommended ranges of supply voltage and ambient temperature, f = 1 MHz (see Note 2) PARAMETER ’4EP64xxN ’4EP72xxN UNIT PARAMETER MIN MAX MIN MAX UNIT Ci(A) Input capacitance, A0 – A11 82 92 pF Ci(OE) Input capacitance, OEx 58 65 pF Ci(CAS) Input capacitance, CASx 16 23 pF Ci(RAS) Input capacitance, RASx 58 65 pF Ci(W) Input capacitance, WEx 58 65 pF Co Output capacitance 8 8 pF Ci/o(SDA) Input/output capacitance, SDA input 9 9 pF Ci(SPD) Input capacitance, SA0, SA1, SA2, SCL inputs 7 7 pF NOTE 2: VDD = NOM supply voltage ± 10%, and the bias on pins under test is 0 V. switching characteristics over recommended ranges of supply voltage and ambient temperature (see Note 3) PARAMETER ’4EP64xxN-50 ’4EP72xxN-50 ’4EP64xxN-60 ’4EP72xxN-60 ’4EP64xxN-70 ’4EP72xxN-70 UNIT MIN MAX MIN MAX MIN MAX tAA Access time from column address (see Note 4) 25 30 35 ns tCAC Access time from CASx (see Note 4) 13 15 18 ns tCPA Access time from CASx precharge (see Note 4) 28 35 40 ns tRAC Access time from RASx (see Note 4) 50 60 70 ns tOEA Access time from OEx (see Note 4) 13 15 18 ns tCLZ Delay time, CASx to output in low impedance 0 0 0 ns tREZ Output buffer turn-off delay from RASx (see Note 5) 3 13 3 15 3 18 ns tCEZ Output buffer turn-off delay from CASx (see Note 5) 3 13 3 15 3 18 ns tOEZ Output buffer turn-off delay from OEx (see Note 5) 3 13 3 15 3 18 ns tWEZ Output buffer turn-off delay from WEx (see Note 5) 3 13 3 15 3 18 ns NOTES: 3. With ac parameters, it is assumed that tT = 2 ns. 4. Access times are measured with output reference levels of VOH = 2 V and VOL = 0.8 V. 5. The maximum values of tREZ, tCEZ,tOEZ, and tWEZarespecifiedwhentheoutputsarenolongerdriven.Data-inshouldnotbedriven until one of the applicable maximum values is satisfied. |
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