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TMS417400-60DR Datasheet(PDF) 10 Page - Texas Instruments |
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TMS417400-60DR Datasheet(HTML) 10 Page - Texas Instruments |
10 / 30 page TMS416400, TMS416400P, TMS417400, TMS417400P TMS426400, TMS426400P, TMS427400, TMS427400P 4194304-WORD BY 4-BIT HIGH-SPEED DRAMS SMKS881B – MAY 1995 – REVISED AUGUST 1995 10 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443 electrical characteristics over recommended ranges of supply voltage and operating free-air conditions (unless otherwise noted) (continued) TMS426400 / P PARAMETER TEST CONDITIONS† ’426400 - 60 ’426400P - 60 ’426400 -70 ’426400P -70 ’426400 - 80 ’426400P - 80 UNIT MIN MAX MIN MAX MIN MAX VOH High-level IOH = – 2 mA LVTTL 2.4 2.4 2.4 V VOH g output voltage IOH = – 100 µA LVCMOS VCC – 0.2 VCC – 0.2 VCC – 0.2 V VOL Low-level IOL = 2 mA LVTTL 0.4 0.4 0.4 V VOL output voltage IOL = 100 µA LVCMOS 0.2 0.2 0.2 V II Input current (leakage) VCC = 3.6 V, VI = 0 V to 3.9 V, All others = 0 V to VCC ± 10 ± 10 ± 10 µA IO Output current (leakage) VCC = 3.6 V, VO = 0 V to VCC, CAS high ± 10 ± 10 ± 10 µA ICC1‡§ Read- or write- cycle current VCC = 3.6 V, Minimum cycle 70 60 50 mA Standby VIH = 2 V (LVTTL), After 1 memory cycle, RAS and CAS high 1 1 1 mA ICC2 Standby current VIH = VCC – 0.2 V (LVCMOS), ’426400 500 500 500 µA (), After 1 memory cycle, RAS and CAS high ’426400P 200 200 200 µA ICC3‡§ Average refresh current (RAS-only refresh or CBR) VCC = 3.6 V, Minimum cycle, RAS cycling, CAS high (RAS-only refresh), RAS low after CAS low (CBR) 70 60 50 mA ICC4‡¶ Average page current VCC = 3.6 V, tPC = MIN, RAS low, CAS cycling 60 50 40 mA ICC6# Self-refresh current CAS < 0.2 V, RAS < 0.2 V, Measured after tRASS min 250 250 250 µA ICC10# Battery back-up operating current (equivalent refresh time is 128 ms), CBR only tRC = 31.25 µs, tRAS ≤ 1 µs, VCC – 0.2 V ≤ VIH ≤ 3.9 V, 0 V ≤ VIL ≤ 0.2 V, W and OE = VIH, Address and data stable 350 350 350 µA † For conditions shown as MIN / MAX, use the appropriate value specified in the timing requirements. ‡ Measured with outputs open § Measured with a maximum of one address change while RAS = VIL ¶ Measured with a maximum of one address change while CAS = VIH # For TMS426400P only PRODUCT PREVIEW information concerns products in the formative or design phase of development. Characteristic data and other specifications are design goals. Texas Instruments reserves the right to change or discontinue these products without notice. |
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