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SN74F521DW Fiches technique(PDF) 3 Page - Texas Instruments |
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SN74F521DW Fiches technique(HTML) 3 Page - Texas Instruments |
3 / 18 page SN54F521, SN74F521 8BIT IDENTITY COMPARATORS SDFS091 − MARCH 1987 − REVISED OCTOBER 1993 2−3 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443 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) −1.2 V to 7 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Input current range −30 mA to 5 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Voltage range applied to any output in the high state −0.5 V to VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Current into any output in the low state 40 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating free-air temperature range: SN54F521 −55 °C to 125°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SN74F521 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. NOTE 1: The input voltage ratings may be exceeded provided the input current ratings are observed. recommended operating conditions SN54F521 SN74F521 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 IIK Input clamp current −18 −18 mA IOH High-level output current −1 −1 mA IOL Low-level output current 20 20 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 SN54F521 SN74F521 UNIT PARAMETER TEST CONDITIONS MIN TYP‡ MAX MIN TYP‡ MAX UNIT VIK VCC = 4.5 V, II = − 18 mA − 1.2 − 1.2 V VOH VCC = 4.5 V, IOH = − 1 mA 2.5 3.4 2.5 3.4 V VOH VCC = 4.75 V, IOH = − 1 mA 2.7 V VOL VCC = 4.5 V, IOL = 20 mA 0.3 0.5 0.3 0.5 V II VCC = 5.5 V, VI = 7 V 100 100 µA IIH VCC = 5.5 V, VI = 2.7 V 20 20 µA IIL VCC = 5.5 V, VI = 0.5 V − 0.6 − 0.6 mA IOS§ VCC = 5.5 V, VO = 0 −60 − 150 −60 − 150 mA ICC VCC = 5.5 V, See Note 2 21 32 21 32 mA ‡ All typical values are at VCC = 5 V, TA = 25°C. § Not more than one output should be shorted at a time, and the duration of the short circuit should not exceed one second. NOTE 2: ICC is measured with all inputs at 4.5 V. |
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