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74ACT11244NT Arkusz danych(PDF) 2 Page - Texas Instruments |
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74ACT11244NT Arkusz danych(HTML) 2 Page - Texas Instruments |
2 / 5 page 74ACT11244 OCTAL BUFFER/LINE DRIVER WITH 3-STATE OUTPUTS SCAS006C – AUGUST 1987 – REVISED APRIL 1996 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 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 6 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Maximum power dissipation at TA = 55°C (in still air) (see Note 2): DB package 0.65 W . . . . . . . . . . . . . . . . . . DW package 1.7 W . . . . . . . . . . . . . . . . . . NT package 1.3 W . . . . . . . . . . . . . . . . . . . PW package 0.7 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 maximum package power dissipation is calculated using a junction temperature of 150 _C and a board trace length of 750 mils, except for the NT package, which has a trace length of zero. recommended operating conditions MIN MAX UNIT VCC Supply voltage 4.5 5.5 V VIH High-level input voltage 2 V VIL Low-level input voltage 0.8 V VI Input voltage 0 VCC V VO Output voltage 0 VCC V IOH High-level output current –24 mA IOL Low-level output current 24 mA Dt/Dv Input transition rise or fall rate 0 10 ns/V TA Operating free-air temperature –40 85 °C |
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