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TMS46400P Datasheet(PDF) 2 Page - Texas Instruments |
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TMS46400P Datasheet(HTML) 2 Page - Texas Instruments |
2 / 25 page TMS44400, TMS44400P, TMS46400, TMS46400P 1048576-WORD BY 4-BIT DYNAMIC RANDOM-ACCESS MEMORIES SMHS562C – MAY 1995 – REVISED NOVEMBER 1996 2 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443 logic symbol† A0 A1 A2 A3 A4 A5 A6 A7 A8 RAS CAS W OE 9 10 11 12 14 15 16 17 18 4 23 3 22 20D10/21D0 20D19/21D9 C20 [ROW] G23/[REFRESH ROW] 24 [PWR DWN] C21[COLUMN] G24 23C22 23,21D 24,25 EN G25 A 0 1 048 575 RAM 1024K × 4 & A9 5 1 2 24 25 A,Z26 A,22D 26 DQ1 DQ2 DQ3 DQ4 † This symbol is in accordance with ANSI / IEEE Std 91-1984 and IEC Publication 617-12. Pin numbers shown are for the DJ package. functional block diagram A0 A1 A9 16 Timing and Control Column- Address Buffers Row- Address Buffers I/O Buffers 1 of 16 Selection Data- In Reg. Data- Out Reg. Column Decode Sense Amplifiers R o w D e c o d e 16 128K Array 128K Array 128K Array 128K Array 128K Array 128K Array RAS CAS W DQ1 – DQ4 4 4 OE 2 8 10 10 16 16 2 |
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