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SN74AS74ADRG4 数据表(PDF) 3 Page - Texas Instruments |
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SN74AS74ADRG4 数据表(HTML) 3 Page - Texas Instruments |
3 / 18 page SN54ALS74A, SN54AS74A, SN74ALS74A, SN74AS74A DUAL POSITIVEEDGETRIGGERED DTYPE FLIPFLOPS WITH CLEAR AND PRESET SDAS143C − APRIL 1982 − REVISED AUGUST 1995 3 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443 recommended operating conditions SN54ALS74A SN74ALS74A 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 − 0.4 − 0.4 mA IOL Low-level output current 4 8 mA fclock Clock frequency 0 25 0 34 MHz PRE or CLR low 15 15 tw Pulse duration CLK high 17.5 14.5 ns tw Pulse duration CLK low 17.5 14.5 ns tsu Setup time before CLK ↑ Data 16 15 ns tsu Setup time before CLK ↑ PRE or CLR inactive 10 10 ns th Hold time after CLK ↑ Data 2 0 ns 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 SN54ALS74A SN74ALS74A UNIT PARAMETER TEST CONDITIONS MIN TYP† MAX MIN TYP† MAX UNIT VIK VCC = 4.5 V, II = −18 mA −1.5 −1.5 V VOH VCC = 4.5 V to 5.5 V, IOH = − 2 mA VCC −2 VCC −2 V VOL VCC = 4.5 V IOL = 4 mA 0.25 0.4 0.25 0.4 V VOL VCC = 4.5 V IOL = 8 mA 0.35 0.5 V II CLK or D VCC = 4.5 V, VI = 7 V 0.1 0.1 mA II PRE or CLR VCC = 4.5 V, VI = 7 V 0.2 0.2 mA IIH CLK or D VCC = 4.5 V, VI = 2.7 V 20 20 A IIH PRE or CLR VCC = 4.5 V, VI = 2.7 V 40 40 µA IIL CLK or D VCC = 4.5 V, VI = 0.4 V − 0.2 − 0.2 mA IIL PRE or CLR VCC = 4.5 V, VI = 0.4 V − 0.4 − 0.4 mA IO‡ VCC = 5.5 V, VO = 2.25 V −20 −112 −30 −112 mA ICC VCC = 5.5 V, See Note 1 2.4 4 2.4 4 mA † 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. NOTE 1: ICC is measured with D, CLK, and PRE grounded, then with D, CLK, and CLR grounded. |
类似零件编号 - SN74AS74ADRG4 |
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类似说明 - SN74AS74ADRG4 |
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