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SN74F157ANSR 데이터시트(PDF) 3 Page - Texas Instruments |
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SN74F157ANSR 데이터시트(HTML) 3 Page - Texas Instruments |
3 / 5 page SN54F157A, SN74F157A QUADRUPLE 2LINE TO 1LINE DATA SELECTORS/MULTIPLEXERS SDFS053A − MARCH 1987 − REVISED OCTOBER 1993 2−3 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS SN54F157A SN74F157A UNIT PARAMETER TEST CONDITIONS MIN TYP† MAX MIN TYP† MAX UNIT VIK VCC = 4.5 V, II = − 18 mA − 1.2 − 1.2 V VOH VCC = 4.5 V, IOH = − 1 mA 2.5 3.4 2.5 3.4 V VOH VCC = 4.75 V, IOH = − 1 mA 2.7 V VOL VCC = 4.5 V, IOL = 20 mA 0.3 0.5 0.3 0.5 V II VCC = 5.5 V, VI = 7 V 0.1 0.1 mA IIH VCC = 5.5 V, VI = 2.7 V 20 20 µA IIL VCC = 5.5 V, VI = 0.5 V − 0.6 − 0.6 mA IOS‡ VCC = 5.5 V, VO = 0 −60 −150 −60 −150 mA ICC VCC = 5.5 V, VI = 4.5 V 15 23 15.5 23 mA † All typical values are at VCC = 5 V, TA = 25°C. ‡ Not more than one output should be shorted at a time, and the duration of the short circuit should not exceed one second. switching characteristics (see Note 2) PARAMETER FROM (INPUT) TO (OUTPUT) VCC = 5 V, CL = 50 pF, RL = 500 Ω, TA = 25°C VCC = 4.5 V to 5.5 V, CL = 50 pF, RL = 500 Ω, TA = MIN to MAX§ UNIT (INPUT) (OUTPUT) ′F157A SN54F157A SN74F157A MIN TYP MAX MIN MAX MIN MAX tPLH A /B Y 3.2 6.6 10 3.2 12 3.2 11 ns tPHL A /B Y 2.2 4.6 7 2.2 9 2.2 8 ns tPLH G Y 4.2 6.6 9.5 4.2 13 4.2 11 ns tPHL G Y 1.7 4.1 6.5 1.7 7.5 1.7 7 ns tPLH A or B Y 1.7 4.1 6 1.7 7.5 1.7 6.5 ns tPHL A or B Y 1.7 3.6 5.5 1 7.5 1.2 7 ns § For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. NOTE 2: Load circuits and voltage waveforms are shown in Section 1. |
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