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74LCX646 Datasheet(PDF) 8 Page - STMicroelectronics |
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74LCX646 Datasheet(HTML) 8 Page - STMicroelectronics |
8 / 13 page ![]() M74LCX646 8/13 TEST CIRCUIT CL = 50 pF or equivalent (includes jig and probe capacitance) RL = R1 = 500Ω or equivalent RT = ZOUT of pulse generator (typically 50Ω) WAVEFORM 1 : PROPAGATION DELAYS, SAB, SBA, An, Bn, TIMES (f=1MHz; 50% duty cycle) TEST SWITCH tPLH, tPHL Open tPZL, tPLZ 6V tPZH, tPHZ GND |