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SN74AHCT273DWR Scheda tecnica(PDF) 4 Page - Texas Instruments |
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SN74AHCT273DWR Scheda tecnica(HTML) 4 Page - Texas Instruments |
4 / 19 page SN54AHCT273, SN74AHCT273 OCTAL D-TYPE FLIP-FLOPS WITH CLEAR SCLS375E – JUNE 1997 – REVISED APRIL 2002 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS VCC TA = 25°C SN54AHCT273 SN74AHCT273 UNIT PARAMETER TEST CONDITIONS VCC MIN TYP MAX MIN MAX MIN MAX UNIT V IOH = –50 mA 45 V 4.4 4.5 4.4 4.4 V VOH IOH = –8 mA 4.5 V 3.94 3.8 3.8 V V IOL = 50 mA 45 V 0.1 0.1 0.1 V VOL IOL = 8 mA 4.5 V 0.36 0.44 0.44 V II VI = 5.5 V or GND 0 V to 5.5 V ±0.1 ±1* ±1 mA ICC VI = VCC or GND, IO = 0 5.5 V 4 40 40 mA ∆ICC† One input at 3.4 V, Other inputs at VCC or GND 5.5 V 1.35 1.5 1.5 mA Ci VI = VCC or GND 5 V 2.5 10 10 pF * On products compliant to MIL-PRF-38535, this parameter is not production tested at VCC = 0 V. † This is the increase in supply current for each input at one of the specified TTL voltage levels rather than 0 V or VCC. timing requirements over recommended operating free-air temperature range, VCC = 5 V ± 0.5 V (unless otherwise noted) (see Figure 1) TA = 25°C SN54AHCT273 SN74AHCT273 UNIT MIN MAX MIN MAX MIN MAX UNIT t Pulse duration CLR low 5 6 6 ns tw Pulse duration CLK high or low 5 6.5 6.5 ns t Setup time Data before CLK ↑ 5 5 5 ns tsu Setup time CLR before CLK ↑ 2.5 2.5 2.5 ns th Hold time, data after CLK ↑ 0 0 0 ns switching characteristics over recommended operating free-air temperature range, VCC = 5 V ± 0.5 V (unless otherwise noted) (see Figure 1) PARAMETER FROM TO LOAD TA = 25°C SN54AHCT273 SN74AHCT273 UNIT PARAMETER (INPUT) (OUTPUT) CAPACITANCE MIN TYP MAX MIN MAX MIN MAX UNIT f CL = 15 pF 75** 120** 65** 65 MHz fmax CL = 50 pF 50 75 45 45 MHz tPHL CLR Q CL = 15 pF 7.5** 10** 1** 11.6** 1 11.6 ns tPLH CLK Q CL =15 pF 5.5** 7.5** 1** 8.8** 1 8.8 ns tPHL CLK Q CL = 15 pF 5.8** 8.2** 1** 10** 1 10 ns tPHL CLR Q CL = 50 pF 8.5 11 1 12.6 1 12.6 ns tPLH CLK Q CL =50 pF 6.5 8.5 1 9.8 1 9.8 ns tPHL CLK Q CL = 50 pF 6.8 9.2 1 11 1 11 ns tsk(o) CL = 50 pF 1*** 1 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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