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IN74HC157AD Datasheet(PDF) 4 Page - IK Semicon Co., Ltd |
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IN74HC157AD Datasheet(HTML) 4 Page - IK Semicon Co., Ltd |
4 / 6 page IN74HC157A Rev. 00 AC ELECTRICAL CHARACTERISTICS (C L=50pF,Input tr=tf=6.0 ns) VCC Guaranteed Limit Symbol Parameter V 25 °C to -55°C ≤85°C ≤125°C Unit tPLH, tPHL Maximum Propagation Delay, Input A or B to Output Y (Figures 1and 4) 2.0 4.5 6.0 105 21 18 130 26 22 160 32 27 ns tPLH, tPHL Maximum Propagation Delay , Select to Output Y (Figures 2 and 4) 2.0 4.5 6.0 110 22 19 140 28 24 165 33 28 ns tPLH, tPHL Maximum Propagation Delay , Output Enable to Output Y (Figures 3 and 4) 2.0 4.5 6.0 100 20 17 125 25 21 150 30 26 ns tTLH, tTHL Maximum Output Transition Time, Any Output (Figures 1 and 4) 2.0 4.5 6.0 75 15 13 95 19 16 110 22 19 ns CIN Maximum Input Capacitance - 10 10 10 pF Power Dissipation Capacitance (Per Package) Typical @25°C,VCC=5.0 V CPD Used to determine the no-load dynamic power consumption: PD=CPDVCC 2f+I CCVCC 33 pF Figure 1. Switching Waveforms Figure 2. Switching Waveforms Figure 3. Switching Waveforms Figure 4. Test Circuit |
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