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TM124MBK36F-70 Datasheet(PDF) 6 Page - Texas Instruments |
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TM124MBK36F-70 Datasheet(HTML) 6 Page - Texas Instruments |
6 / 9 page TM124MBK36F, TM124MBK36U 1048576 BY 36-BIT DRAM MODULE TM248NBK36F, TM248NBK36U 2097152 BY 36-BIT DRAM MODULE SMMS650A – APRIL 1995 – REVISED JUNE 1995 6 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443 electrical characteristics over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)† PARAMETER TEST CONDITIONS ’248NBK36F - 60 ’248NBK36F - 70 ’248NBK36F - 80 UNIT PARAMETER TEST CONDITIONS MIN MAX MIN MAX MIN MAX UNIT VOH High-level output voltage IOH = – 5 mA 2.4 2.4 2.4 V VOL Low-level output voltage IOL = 4.2 mA 0.4 0.4 0.4 V II Input current (leakage) VCC = 5.5 V, VI = 0 V to 6.5 V, All other pins = 0 V to VCC ± 10 ± 10 ± 10 µA IO Output current (leakage) VCC = 5.5 V, VO = 0 V to VCC, CAS high ± 20 ± 20 ± 20 µA ICC1 Read- or write-cycle current (see Note 3) VCC = 5.5 V, Minimum cycle 391 256 226 mA ICC2 Standby current VIH = 2.4 V (TTL), After 1 memory cycle, RAS and CAS high 12 12 12 mA ICC2 Standby current VIH = VCC – 0.2 V (CMOS), After 1 memory cycle, RAS and CAS high 6 6 6 mA ICC3 Average refresh current (RAS only or CBR) (see Note 3) VCC = 5.5 V, Minimum cycle, RAS cycling, CAS high (RAS only); RAS low after CAS low (CBR) 570 500 440 mA ICC4 Average page current (see Note 4) VCC = 5.5 V, tPC = MIN, RAS low, CAS cycling 256 226 196 mA † For test conditions shown as MIN / MAX, use the appropriate value specified under recommended operating conditions. NOTES: 3. Measured with a maximum of one address change while RAS = VIL 4. Measured with a maximum of one address change while CAS = VIH capacitance over recommended ranges of supply voltage and operating free-air temperature, f = 1 MHz (see Note 5) PARAMETER ’124MBK36F ’248NBK36F UNIT PARAMETER MIN MAX MIN MAX UNIT Ci(A) Input capacitance, address inputs 15 30 pF Ci(R) Input capacitance RAS inputs RAS2, RAS3 14 14 pF Ci(R) Input capacitance, RAS inputs RAS0, RAS1 7 7 pF Ci(C) Input capacitance, CAS inputs 14 28 pF Ci(W) Input capacitance, write-enable input 21 42 pF Co(DQ) Output capacitance on DQ pins 7 14 pF NOTE 5: Bias on pins under test is 0 V. |
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