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SN74LV574ADBR 데이터시트(PDF) 5 Page - Texas Instruments |
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SN74LV574ADBR 데이터시트(HTML) 5 Page - Texas Instruments |
5 / 23 page SN54LV574A, SN74LV574A OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS SCLS412I − APRIL 1998 − REVISED APRIL 2005 5 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 timing requirements over recommended operating free-air temperature range, VCC = 2.5 V ± 0.2 V (unless otherwise noted) (see Figure 1) PARAMETER TA = 25°C SN54LV574A SN74LV574A UNIT PARAMETER MIN MAX MIN MAX MIN MAX UNIT tw Pulse duration CLK high or low 7 7 7 ns tsu Setup time High or low before CLK ↑ 5.5 5.5 5.5 ns th Hold time Data after CLK ↑ 2 2 2 ns timing requirements over recommended operating free-air temperature range, VCC = 3.3 V ± 0.3 V (unless otherwise noted) (see Figure 1) PARAMETER TA = 25°C SN54LV574A SN74LV574A UNIT PARAMETER MIN MAX MIN MAX MIN MAX UNIT tw Pulse duration CLK high or low 5 5 5 ns tsu Setup time High or low before CLK ↑ 3.5 3.5 3.5 ns th Hold time Data after CLK ↑ 1.5 1.5 1.5 ns timing requirements over recommended operating free-air temperature range, VCC = 5 V ± 0.5 V (unless otherwise noted) (see Figure 1) PARAMETER TA = 25°C SN54LV574A SN74LV574A UNIT PARAMETER MIN MAX MIN MAX MIN MAX UNIT tw Pulse duration CLK high or low 5 5 5 ns tsu Setup time High or low before CLK ↑ 3.5 3.5 3.5 ns th Hold time Data after CLK ↑ 1.5 1.5 1.5 ns switching characteristics over recommended operating free-air temperature range, VCC = 2.5 V ± 0.2 V (unless otherwise noted) (see Figure 1) PARAMETER FROM TO LOAD TA = 25°C SN54LV574A SN74LV574A UNIT PARAMETER FROM (INPUT) TO (OUTPUT) LOAD CAPACITANCE MIN TYP MAX MIN MAX MIN MAX UNIT f CL = 15 pF 60* 100* 50* 50 MHz fmax CL = 50 pF 50 85 40 40 MHz tpd CLK Q 9.6* 16.6* 1* 20* 1 20 ten OE Q CL = 15 pF 9.2* 16.1* 1* 19* 1 19 ns tdis OE Q CL 15 pF 6.5* 12.8* 1* 15* 1 15 tpd CLK Q 11.6 19.6 1 23 1 23 ten OE Q C 50 pF 10.9 19 1 22 1 22 ns tdis OE Q CL = 50 pF 8.4 17.5 1 20 1 20 ns tsk(o) 2 2 * On products compliant to MIL-PRF-38535, this parameter is not production tested. 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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