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2 / 6 page 74AC11244 OCTAL BUFFER/DRIVER WITH 3-STATE OUTPUTS SCAS171B – MARCH 1987 – REVISED SEPTEMBER 1998 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 logic symbol† 1OE 23 1A1 22 1A2 21 1A3 20 1A4 EN 24 1Y1 1 1Y2 2 1Y3 3 1Y4 4 2OE 17 2A1 16 2A2 15 2A3 14 2A4 EN 13 2Y1 9 2Y2 10 2Y3 11 2Y4 12 † This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. logic diagram (positive logic) 24 23 22 21 20 13 17 16 15 14 12 11 10 9 4 3 2 1 1A1 1A2 1A3 1A4 1Y1 2A1 2A2 2A3 2A4 2Y1 1Y2 1Y3 1Y4 2Y2 2Y3 2Y4 1OE 2OE absolute maximum ratings over operating free-air temperature range (unless otherwise noted)‡ Supply voltage range, VCC –0.5 V to 7 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Input voltage range, VI (see Note 1) –0.5 V to VCC + 0.5 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Output voltage range, VO (see Note 1) –0.5 V to VCC + 0.5 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Input clamp current, IIK (VI < 0 or VI > VCC) ±20 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Output clamp current, IOK (VO < 0 or VO > VCC) ±50 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous output current, IO (VO = 0 to VCC) ±50 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous current through VCC or GND ±200 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Package thermal impedance, θJA (see Note 2): DB package 104 °C/W . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DW package 81 °C/W . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PW package 120 °C/W . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . NT package 67 °C/W . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Storage temperature range, Tstg –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. NOTES: 1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed. 2. The package thermal impedance is calculated in accordance with JESD 51, except for through-hole packages, which use a trace length of zero. |
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