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SN74AS244AN Datasheet(PDF) 3 Page - Texas Instruments |
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SN74AS244AN Datasheet(HTML) 3 Page - Texas Instruments |
3 / 17 page SN54ALS244C, SN54AS244A, SN74ALS244C, SN74AS244A OCTAL BUFFERS AND LINE DRIVERS WITH 3-STATE OUTPUTS SDAS142C – JULY 1987 – REVISED AUGUST 1995 3 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 recommended operating conditions SN54ALS244C SN74ALS244C 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 0.8† 0.8 V VIL Low-level input voltage 0.7‡ V IOH High-level output current –12 –15 mA IOL Low level output current 12 24 mA IOL Low-level output current 48§ mA TA Operating free-air temperature –55 125 0 70 °C † Applies over temperature range – 55 °C to 70°C ‡ Applies over temperature range 70 °C to 125°C § Applies only to the -1 version and only if VCC is between 4.75 V and 5.25 V electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS SN54ALS244C SN74ALS244C 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 5Vto5 5V IOH = – 0.4 mA VCC –2 VCC –2 VOH VCC = 4.5 V to 5.5 V IOH = – 3 mA 2.4 3.2 2.4 3.2 V VOH VCC =4 5V IOH = – 12 mA 2 V VCC = 4.5 V IOH = – 15 mA 2 IOL = 12 mA 0.25 0.4 0.25 0.4 VOL VCC = 4.5 V IOL = 24 mA 0.35 0.5 V IOL = 48 mA (-1 version) 0.35 0.5 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 9 18 9 17 ICC VCC = 5.5 V Outputs low 15 25 15 24 mA Outputs disabled 17 29 17 27 ¶ 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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