전자부품 데이터시트 검색엔진 |
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SN74AC74-EP 데이터시트(PDF) 4 Page - Texas Instruments |
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SN74AC74-EP 데이터시트(HTML) 4 Page - Texas Instruments |
4 / 9 page SN74AC74EP DUAL POSITIVEEDGETRIGGERED DTYPE FLIPFLOP WITH CLEAR AND PRESET SCAS721 − OCTOBER 2003 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 timing requirements over recommended operating free-air temperature range, VCC = 3.3 V " 0.3 V (unless otherwise noted) (see Figure 1) TA = 25°C MIN MAX UNIT MIN MAX MIN MAX UNIT fclock Clock frequency 100 70 MHz tw Pulse duration PRE or CLR low 5.5 8 ns tw Pulse duration CLK 5.5 8 ns tsu Setup time, data before CLK ↑ Data 4 5 ns tsu Setup time, data before CLK ↑ PRE or CLR inactive 0 0.5 ns th Hold time, data after CLK ↑ 0.5 0.5 ns timing requirements over recommended operating free-air temperature range, VCC = 5 V"0.5 V (unless otherwise noted) (see Figure 1) TA = 25°C MIN MAX UNIT MIN MAX MIN MAX UNIT fclock Clock frequency 140 95 MHz tw Pulse duration PRE or CLR low 4.5 5.5 ns tw Pulse duration CLK 4.5 5.5 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 ↑ 0.5 0.5 ns switching characteristics over recommended operating free-air temperature range, VCC = 3.3 V " 0.3 V (unless otherwise noted) (see Figure 1) PARAMETER FROM TO TA = 25°C MIN MAX UNIT PARAMETER FROM (INPUT) TO (OUTPUT) MIN TYP MAX MIN MAX UNIT fmax 100 125 70 MHz tPLH PRE or CLR Q or Q 3.5 8 12 1 13 ns tPHL PRE or CLR Q or Q 4 10.5 12 1 14 ns tPLH CLK Q or Q 4.5 8 13.5 1 17.5 ns tPHL CLK Q or Q 3.5 8 14 1 13.5 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 TA = 25°C MIN MAX UNIT PARAMETER FROM (INPUT) TO (OUTPUT) MIN TYP MAX MIN MAX UNIT fmax 140 160 95 MHz tPLH PRE or CLR Q or Q 2.5 6 9 1 9.5 ns tPHL PRE or CLR Q or Q 3 8 9.5 1 10.5 ns tPLH CLK Q or Q 3.5 6 10 1 12 ns tPHL CLK Q or Q 2.5 6 10 1 10 ns operating characteristics, VCC = 3.3 V, TA = 25°C PARAMETER TEST CONDITIONS TYP UNIT Cpd Power dissipation capacitance CL = 50 pF, f = 1 MHz 45 pF |
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