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SN74ALS166NSR 데이터시트(PDF) 4 Page - Texas Instruments |
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SN74ALS166NSR 데이터시트(HTML) 4 Page - Texas Instruments |
4 / 15 page SN74ALS166 PARALLEL-LOAD 8-BIT SHIFT REGISTER SDAS156D – APRIL 1982 – REVISED AUGUST 2000 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP† MAX UNIT VIK VCC = 4.5 V, II = –18 mA –1.5 V VOH VCC = 4.5 V to 5.5 V, IOH = –0.4 mA VCC–2 V VOL VCC =4 5V IOL = 4 mA 0.25 0.4 V VOL VCC = 4.5 V IOL = 8 mA 0.35 0.5 V II VCC = 5.5 V, VI = 7 V 0.1 mA IIH VCC = 5.5 V, VI = 2.7 V 20 µA IIL VCC = 5.5 V, VI = 0.4 V –0.1 mA IO‡ VCC = 5.5 V, VO = 2.25 V –30 –112 mA ICC VCC = 5.5 V, See Note 2 14 24 mA † All typical values are at VCC = 5 V, TA = 25°C. ‡ The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, IOS. NOTE 2: With 4.5 V applied to SER and all other inputs, except the clock, grounded, ICC is measured after a clock transition from 0 V to 4.5 V. timing requirements over recommended operating free-air temperature range (unless otherwise noted) MIN MAX UNIT fclock Clock frequency 45 MHz CLR low 9 tw Pulse duration CLK high 10 ns CLK low 10 ↑ SH/LD 16 tsu Setup time before CLK ↑ Data 7 ns CLR inactive 11 th Hold time, data after CLK ↑ 3 ns switching characteristics over recommended operating conditions (unless otherwise noted) (see Figure 1) PARAMETER FROM (INPUT) TO (OUTPUT) MIN TYP† MAX UNIT fmax 45 MHz tPHL CLR QH 4 9 14 ns tPLH CLK QH 2 7 12 ns tPHL CLK QH 2 9 13 ns † All typical values are at VCC = 5 V, TA = 25°C. |
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