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SN74AHC174DGVRE4 Datasheet(PDF) 4 Page - Texas Instruments |
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SN74AHC174DGVRE4 Datasheet(HTML) 4 Page - Texas Instruments |
4 / 18 page SN54AHC174, SN74AHC174 HEX D-TYPE FLIP-FLOPS WITH CLEAR SCLS425F – JUNE 1998 – REVISED FEBRUARY 2002 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) TA = 25°C SN54AHC174 SN74AHC174 UNIT MIN MAX MIN MAX MIN MAX UNIT t Pulse duration CLR low 5 5 5 ns tw Pulse duration CLK high or low 5 5 5 ns t Setup time before CLK ↑ Data 5 6 6 ns tsu Setup time before CLK ↑ CLR inactive 3 3 3 ns th Hold time, data after CLK ↑ 0 0 0 ns timing requirements over recommended operating free-air temperature range, VCC = 5 V ± 0.5 V (unless otherwise noted) TA = 25°C SN54AHC174 SN74AHC174 UNIT MIN MAX MIN MAX MIN MAX UNIT t Pulse duration CLR low 5 5 5 ns tw Pulse duration CLK high or low 5 5 5 ns t Setup time before CLK ↑ Data 4.5 4.5 4.5 ns tsu Setup time before CLK ↑ CLR inactive 2.5 2.5 2.5 ns th Hold time, data after CLK ↑ 0.5 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 LOAD TA = 25°C SN54AHC174 SN74AHC174 UNIT PARAMETER (INPUT) (OUTPUT) CAPACITANCE MIN TYP MAX MIN MAX MIN MAX UNIT f CL = 15 pF 95* 170* 80* 80 MHz fmax CL = 50 pF 55 130 50 50 MHz tPHL CLR Any Q CL = 15 pF 4.5* 11.4* 1* 13.5* 1 13.5 ns tPLH CLK Any Q CL =15 pF 5.8* 11* 1* 13* 1 13 ns tPHL CLK Any Q CL = 15 pF 5.8* 11* 1* 13* 1 13 ns tPHL CLR Any Q CL = 50 pF 6 14.9 1 17 1 17 ns tPLH CLK Any Q CL =50 pF 7.5 14.5 1 16.5 1 16.5 ns tPHL CLK Any Q CL = 50 pF 7.5 14.5 1 16.5 1 16.5 ns tsk(o) CL = 50 pF 1.5** 1.5 ns * On products compliant to MIL-PRF-38535, this parameter is not production tested. ** On products compliant to MIL-PRF-38535, this parameter does not apply. PRODUCT PREVIEW information concerns products in the formative or design phase of development. Characteristic data and other specifications are design goals. Texas Instruments reserves the right to change or discontinue these products without notice. |
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