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SN74HC174DG4 Datasheet(PDF) 4 Page - Texas Instruments |
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SN74HC174DG4 Datasheet(HTML) 4 Page - Texas Instruments |
4 / 21 page SN54HC174, SN74HC174 HEX DTYPE FLIPFLOPS WITH CLEAR SCLS119D − DECEMBER 1982 − REVISED SEPTEMBER 2003 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 timing requirements over recommended operating free-air temperature range (unless otherwise noted) VCC TA = 25°C SN54HC174 SN74HC174 UNIT VCC MIN MAX MIN MAX MIN MAX UNIT 2 V 6 4.2 5 fclock Clock frequency 4.5 V 31 21 25 MHz fclock Clock frequency 6 V 36 25 29 MHz 2 V 80 120 100 CLR low 4.5 V 16 24 20 tw Pulse duration CLR low 6 V 14 20 17 ns tw Pulse duration 2 V 80 120 100 ns CLK high or low 4.5 V 16 24 20 CLK high or low 6 V 14 20 17 2 V 100 150 125 Data 4.5 V 20 30 25 tsu Setup time before CLK ↑ Data 6 V 17 25 21 ns tsu Setup time before CLK ↑ 2 V 100 150 125 ns CLR inactive 4.5 V 20 30 25 CLR inactive 6 V 17 25 21 2 V 0 0 0 th Hold time, data after CLK ↑ 4.5 V 0 0 0 ns th Hold time, data after CLK 6 V 0 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 SN54HC174 SN74HC174 UNIT PARAMETER FROM (INPUT) TO (OUTPUT) VCC MIN TYP MAX MIN MAX MIN MAX UNIT 2 V 6 9 4.2 5 fmax 4.5 V 31 44 21 25 MHz fmax 6 V 36 50 25 29 MHz 2 V 58 160 240 200 CLR Any 4.5 V 17 32 48 40 tpd CLR Any 6 V 14 27 41 34 ns tpd 2 V 58 160 240 200 ns CLK Any 4.5 V 17 32 48 40 CLK Any 6 V 14 27 41 34 2 V 38 75 110 90 tt Any 4.5 V 8 15 22 19 ns tt Any 6 V 6 13 19 16 ns operating characteristics, TA = 25°C PARAMETER TEST CONDITIONS TYP UNIT Cpd Power dissipation capacitance per flip-flop No load 27 pF |
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