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SN74ACT74-EP Datasheet(PDF) 3 Page - Texas Instruments |
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SN74ACT74-EP Datasheet(HTML) 3 Page - Texas Instruments |
3 / 9 page SN74ACT74EP DUAL POSITIVEEDGETRIGGERED DTYPE FLIPFLOP WITH CLEAR AND PRESET SCAS722 − OCTOBER 2003 3 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 recommended operating conditions (see Note 4) MIN MAX UNIT VCC Supply voltage 4.5 5.5 V VIH High-level input voltage 2 V VIL Low-level input voltage 0.8 V VI Input voltage 0 VCC V VO Output voltage 0 VCC V IOH High-level output current −24 mA IOL Low-level output current 24 mA ∆t/∆v Input transition rise or fall rate 8 ns/V TA Operating free-air temperature −55 125 °C NOTE 4: All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report Implications of Slow or Floating CMOS Inputs, literature number SCBA004. electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS VCC TA = 25°C MIN MAX UNIT PARAMETER TEST CONDITIONS VCC MIN TYP MAX MIN MAX UNIT IOH = −50 A 4.5 V 4.4 4.49 4.4 VOH IOH = −50 µA 5.5 V 5.4 5.49 5.4 V VOH IOH = −24 mA 4.5 V 3.86 3.7 V IOH = −24 mA 5.5 V 4.86 4.7 IOL = 50 A 4.5 V 0.001 0.1 0.1 VOL IOL = 50 µA 5.5 V 0.001 0.1 0.1 V VOL IOL = 24 mA 4.5 V 0.36 0.5 V IOL = 24 mA 5.5 V 0.36 0.5 II VI = VCC or GND 5.5 V ±0.1 ±1 µA ICC VI = VCC or GND, IO = 0 5.5 V 2 40 µA ∆ICC† One input at 3.4 V, Other inputs at GND or VCC 5.5 V 0.6 1.6 mA Ci VI = VCC or GND 5 V 3 pF † This is the increase in supply current for each input that is at one of the specified TTL voltage levels, rather than 0 V or VCC. timing characteristics over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 1) TA = 25°C MIN MAX UNIT MIN MAX MIN MAX UNIT fclock Clock frequency 145 85 MHz tw Pulse duration PRE or CLR low 5 7 ns tw Pulse duration CLK 5 7 ns tsu Setup time, data before CLK ↑ Data 3 4 ns tsu Setup time, data before CLK ↑ PRE or CLR inactive 0 0.5 ns th Hold time, data after CLK ↑ 1 1 ns |
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