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U74HC157G-S16-T Datasheet(PDF) 4 Page - Unisonic Technologies |
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U74HC157G-S16-T Datasheet(HTML) 4 Page - Unisonic Technologies |
4 / 6 page U74HC157 CMOS IC UNISONICTECHNOLOGIESCO.,LTD 4 of 6 www.unisonic.com.tw QW-R502-812.A SWITCHING CHARACTERISTICS See Fig. 1 and Fig. 2 for test circuit and waveforms. PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Propagation delay from input A or B to output Y, tpd tpd VCC=2V, CL=50pF 63 125 ns VCC=2V, CL=150pF 81 190 VCC=4.5V, CL=50pF 13 25 VCC=4.5V, CL=150pF 23 38 VCC=6V, CL=50pF 11 21 VCC=6V, CL=150pF 18 33 Propagation delay from input A/ B to output Y, tpd tpd VCC=2V, CL=50pF 67 125 ns VCC=2V, CL=150pF 81 210 VCC=4.5V, CL=50pF 18 25 VCC=4.5V, CL=150pF 23 42 VCC=6V, CL=50pF 14 21 VCC=6V, CL=150pF 18 36 Propagation delay from input G to output Y, tpd tpd VCC=2V, CL=50pF 59 115 ns VCC=2V, CL=150pF 91 190 VCC=4.5V, CL=50pF 16 23 VCC=4.5V, CL=150pF 24 38 VCC=6V, CL=50pF 13 20 VCC=6V, CL=150pF 18 33 Output Transition Time tT VCC=2V, CL=50pF 28 60 ns VCC=2V, CL=150pF 45 210 VCC=4.5V, CL=50pF 8 12 VCC=4.5V, CL=150pF 17 42 VCC=6V, CL=50pF 6 10 VCC=6V, CL=150pF 13 36 Note: tPLH and tPHL is the same as tPd OPERATING CHARACTERISTICS (TA =25°C , unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Power dissipation capacitance CPD No load 40 pF |
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