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SN74AHCT74QDRQ1 数据表(PDF) 4 Page - Texas Instruments |
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SN74AHCT74QDRQ1 数据表(HTML) 4 Page - Texas Instruments |
4 / 10 page SN74AHCT74QQ1 DUAL POSITIVEEDGETRIGGERED DTYPE FLIPFLOP WITH CLEAR AND PRESET SGDS008B − MAY 1998 − REVISED APRIL 2008 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 timing requirements over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 1) PARAMETER TA = 25°C MIN MAX UNIT PARAMETER MIN MAX MIN MAX UNIT tw Pulse duration PRE or CLR low 5 5 ns tw Pulse duration CLK 5 5 ns tsu Setup time before CLK ↑ Data 5 5 ns tsu Setup time before CLK ↑ PRE or CLR inactive 3.5 3.5 ns th Hold time, data after CLK ↑ 0 0 ns switching characteristics over recommended operating free-air temperature range, VCC = 5 V ± 0.5 V (unless otherwise noted) (see Figure 1) PARAMETER FROM TO LOAD TA = 25°C MIN MAX UNIT PARAMETER FROM (INPUT) TO (OUTPUT) LOAD CAPACITANCE MIN TYP MAX MIN MAX UNIT fmax CL = 15 pF 100 160 80 MHz fmax CL = 50 pF 80 140 65 MHz tPLH PRE or CLR Q or Q CL = 15 pF 7.6 10.4 1 12 ns tPHL PRE or CLR Q or Q CL = 15 pF 7.6 10.4 1 12 ns tPLH CLK Q or Q CL = 15 pF 5.8 7.8 1 9 ns tPHL CLK Q or Q CL = 15 pF 5.8 7.8 1 9 ns tPLH PRE or CLR Q or Q CL = 50 pF 8.1 11.4 1 13 ns tPHL PRE or CLR Q or Q CL = 50 pF 8.1 11.4 1 13 ns tPLH CLK Q or Q CL = 50 pF 6.3 8.8 1 10 ns tPHL CLK Q or Q CL = 50 pF 6.3 8.8 1 10 ns noise characteristics, VCC = 5 V, CL = 50 pF, TA = 25°C (see Note 4) PARAMETER MIN MAX UNIT VOL(P) Quiet output, maximum dynamic VOL 0.8 V VOL(V) Quiet output, minimum dynamic VOL −0.8 V VOH(V) Quiet output, minimum dynamic VOH 4 V VIH(D) High-level dynamic input voltage 2 V VIL(D) Low-level dynamic input voltage 0.8 V NOTE 4: Characteristics are for surface-mount packages only. operating characteristics, VCC = 5 V, TA = 25°C PARAMETER TEST CONDITIONS TYP UNIT Cpd Power dissipation capacitance No load, f = 1 MHz 32 pF |
类似零件编号 - SN74AHCT74QDRQ1 |
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类似说明 - SN74AHCT74QDRQ1 |
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