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SN74ALS1244ADWRE4 Datasheet(PDF) 3 Page - Texas Instruments |
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SN74ALS1244ADWRE4 Datasheet(HTML) 3 Page - Texas Instruments |
3 / 11 page SN54ALS1244A, SN74ALS1244A OCTAL BUFFERS AND DRIVERS WITH 3-STATE OUTPUTS SDAS186B – JULY 1990 – REVISED JANUARY 1995 3 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 recommended operating conditions SN54ALS1244A SN74ALS1244A UNIT MIN NOM MAX MIN NOM MAX UNIT VCC Supply voltage 4.5 5 5.5 4.5 5 5.5 V VIH High-level input voltage 2 2 V VIL Low-level input voltage 0.7 0.8 V IOH High-level output current –12 –15 mA IOL Low-level output current 8 16 mA TA Operating free-air temperature –55 125 0 70 °C electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS SN54ALS1244A SN74ALS1244A UNIT PARAMETER TEST CONDITIONS MIN TYP† MAX MIN TYP† MAX UNIT VIK VCC = 4.5 V, II = – 18 mA – 1.5 – 1.5 V VCC = 4.5 V to 5.5 V, IOH = – 0.4 mA VCC –2 VCC –2 VOH IOH = – 3 mA 2.4 3.2 2.4 3.2 V VOH VCC = 4.5 V IOH = – 12 mA 2 V IOH = – 15 mA 2 VOL VCC =4 5V IOL = 8 mA 0.25 0.4 0.25 0.4 V VOL VCC = 4.5 V IOL = 16 mA 0.35 0.5 V IOZH VCC = 5.5 V, VO = 2.7 V 20 20 µA IOZL VCC = 5.5 V, VO = 0.4 V –20 –20 µA II VCC = 5.5 V, VI = 7 V 0.1 0.1 mA IIH VCC = 5.5 V, VI = 2.7 V 20 20 µA IIL VCC = 5.5 V, VI = 0.4 V – 0.1 – 0.1 mA IO‡ VCC = 5.5 V, VO = 2.25 V –20 –112 –30 –112 mA Outputs high 6 15 6 11 ICC VCC = 5.5 V Outputs low 10 20 10 17 mA Outputs disabled 11 25 11 20 † All typical values are at VCC = 5 V, TA = 25°C. ‡ The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, IOS. |
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