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SN74HC273-Q1 Datasheet(PDF) 4 Page - Texas Instruments |
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SN74HC273-Q1 Datasheet(HTML) 4 Page - Texas Instruments |
4 / 12 page SN74HC273Q1 OCTAL DTYPE FLIPFLOP WITH CLEAR SCLS578A − MARCH 2004 − REVISED APRIL 2008 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 timing requirements over recommended operating free-air temperature range (unless otherwise noted) VCC TA = 25°C MIN MAX UNIT VCC MIN MAX MIN MAX UNIT 2 V 5 4 fclock Clock frequency 4.5 V 27 18 MHz fclock Clock frequency 6 V 32 21 MHz 2 V 80 120 CLR low 4.5 V 16 24 tw Pulse duration CLR low 6 V 14 20 ns tw Pulse duration 2 V 80 120 ns CLK high or low 4.5 V 16 24 CLK high or low 6 V 14 20 2 V 100 150 Data 4.5 V 20 30 tsu Setup time before CLK ↑ Data 6 V 17 25 ns tsu Setup time before CLK ↑ 2 V 100 150 ns CLR inactive 4.5 V 20 30 CLR inactive 6 V 17 25 2 V 0 0 th Hold time, data after CLK ↑ 4.5 V 0 0 ns th Hold time, data after CLK 6 V 0 0 ns switching characteristics over recommended operating free-air temperature range, CL = 50 pF (unless otherwise noted) (see Figure 1) PARAMETER FROM TO VCC TA = 25°C MIN MAX UNIT PARAMETER FROM (INPUT) TO (OUTPUT) VCC MIN TYP MAX MIN MAX UNIT 2 V 5 11 4 fmax 4.5 V 27 50 18 MHz fmax 6 V 32 60 21 MHz 2 V 55 160 240 tPHL CLR Any 4.5 V 15 32 48 ns tPHL CLR Any 6 V 12 27 41 ns 2 V 56 160 240 tpd CLK Any 4.5 V 15 32 48 ns tpd CLK Any 6 V 13 27 41 ns 2 V 38 75 110 tt Any 4.5 V 8 15 22 ns tt Any 6 V 6 13 19 ns operating characteristics, TA = 25°C PARAMETER TEST CONDITIONS TYP UNIT Cpd Power dissipation capacitance per flip-flop No load 35 pF |
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