Datenblatt-Suchmaschine für elektronische Bauteile |
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SN74ALS870DW Datenblatt(PDF) 3 Page - Texas Instruments |
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SN74ALS870DW Datenblatt(HTML) 3 Page - Texas Instruments |
3 / 7 page SN74ALS870 DUAL 16-BY-4 REGISTER FILES SDAS139A – DECEMBER 1982 – REVISED JANUARY 1995 3 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 logic diagram (positive logic) REG1 REG2 Decoder BIN/Y 16 1 2 3 4 15 0 Decoder BIN/Y 16 1 2 3 4 15 0 16 16 Three Identical Channels Not Shown 2A0 2A1 2A2 2A3 DQB1 1A0 1A1 1A2 1A3 S0 S1 S2 S3 1W 2W DQA1 RAM 16 ×1 A A,D 15 0 A A A,D 15 0 A RAM 16 ×1 2 3 4 5 1 23 7 17 6 18 8 19 20 21 22 13 absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage, VCC 7 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Input voltage, VI: All inputs 7 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I/O ports 5.5 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Voltage applied to a disabled 3-state output 5.5 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating free-air temperature range, TA 0 °C to 70°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Storage temperature range – 65 °C to 150°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . † Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. |
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