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SN74ALS621A-1N Datasheet(PDF) 7 Page - Texas Instruments |
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SN74ALS621A-1N Datasheet(HTML) 7 Page - Texas Instruments |
7 / 15 page SN74ALS620A, SN74ALS621A, SN74ALS623A, SN74AS623 OCTAL BUS TRANSCEIVERS SDAS226A – DECEMBER 1982 – REVISED JANUARY 1995 7 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating free-air temperature range, TA: SN74AS623 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. recommended operating conditions SN74AS623 UNIT MIN NOM MAX UNIT VCC Supply voltage 4.5 5 5.5 V VIH High-level input voltage 2 V VIL Low-level input voltage 0.8 V IOH High-level output current –15 mA IOL Low-level output current 64 mA TA Operating free-air temperature 0 70 °C electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS SN74AS623 UNIT PARAMETER TEST CONDITIONS MIN TYP‡ MAX UNIT VIK VCC = 4.5 V, II = – 18 mA – 1.2 V VCC = 4.5 V to 5.5 V, IOH = – 2 mA VCC –2 VOH VCC =4 5V IOH = – 3 mA 2.4 3.2 V VCC = 4.5 V IOH = – 15 mA 2 VOL VCC = 4.5 V, IOL = 64 mA 0.35 0.55 V II Control inputs VCC =5 5V VI = 7 V 0.1 mA II A or B ports VCC = 5.5 V VI = 5.5 V 0.1 mA IIH Control inputs VCC =5 5V VI =2 7V 20 µA IIH A or B ports§ VCC = 5.5 V, VI = 2.7 V 70 µA IIL Control inputs VCC =5 5V VI =0 4V – 0.5 mA IIL A or B ports§ VCC = 5.5 V, VI = 0.4 V – 0.75 mA IO¶ VCC = 5.5 V, VO = 2.25 V –30 – 150 mA Outputs high 57 93 ICC VCC = 5.5 V Outputs low 16 189 mA Outputs disabled 71 116 ‡ All typical values are at VCC = 5 V, TA = 25°C. § For I/O ports, the parameters IIH and IIL include the off-state output current. ¶ 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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