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SN74HCT273DWE4 データシート(PDF) 4 Page - Texas Instruments |
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SN74HCT273DWE4 データシート(HTML) 4 Page - Texas Instruments |
4 / 17 page SN54HCT273, SN74HCT273 OCTAL DTYPE FLIPFLOPS WITH CLEAR SCLS068E − NOVEMBER 1988 − REVISED AUGUST 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 SN54HCT273 SN74HCT273 UNIT VCC MIN MAX MIN MAX MIN MAX UNIT fclock Clock frequency 4.5 V 25 16 20 MHz fclock Clock frequency 5.5 V 28 19 23 MHz CLK high or low 4.5 V 20 30 25 tw Pulse duration CLK high or low 5.5 V 18 25 22 ns tw Pulse duration CLR low 4.5 V 16 24 20 ns CLR low 5.5 V 14 20 17 Data 4.5 V 20 30 25 tsu Setup time before CLK ↑ Data 5.5 V 17 25 21 ns tsu Setup time before CLK ↑ CLR inactive 4.5 V 20 30 25 ns CLR inactive 5.5 V 17 25 21 th Hold time data after CLK ↑ 4.5 V 0 0 0 ns th Hold time data after CLK ↑ 5.5 V 0 0 0 ns switching characteristics over recommended operating free-air temperature range, VCC = 5 V ± 0.5 V, CL = 50 pF (unless otherwise noted) (see Figure 1) FROM TO SN54HCT273 PARAMETER FROM (INPUT) TO (OUTPUT) VCC TA = 25°C MIN MAX UNIT PARAMETER (INPUT) (OUTPUT) VCC MIN TYP MAX MIN MAX UNIT fmax 4.5 V 25 31 16 MHz fmax 5.5 V 28 37 19 MHz tpd CLR Any 4.5 V 15 34 50 ns tpd CLR Any 5.5 V 12 29 42 ns tPHL CLR Any 4.5 V 17 15 50 ns tPHL CLR Any 5.5 V 15 34 42 ns tt Any 4.5 V 8 18 22 ns tt Any 5.5 V 7 19 21 ns switching characteristics over recommended operating free-air temperature range, VCC = 5 V ± 0.5 V, CL = 50 pF (unless otherwise noted) (see Figure 1) FROM TO SN74HCT273 PARAMETER FROM (INPUT) TO (OUTPUT) VCC TA = 25°C MIN MAX UNIT PARAMETER (INPUT) (OUTPUT) VCC MIN TYP MAX MIN MAX UNIT fmax 4.5 V 25 31 20 MHz fmax 5.5 V 28 37 23 MHz tpd CLR Any 4.5 V 15 34 42 ns tpd CLR Any 5.5 V 12 29 36 ns tPHL CLR Any 4.5 V 17 34 42 ns tPHL CLR Any 5.5 V 15 29 36 ns tt Any 4.5 V 8 15 19 ns tt Any 5.5 V 7 14 17 ns 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. |
同様の部品番号 - SN74HCT273DWE4 |
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