전자부품 데이터시트 검색엔진 |
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74LCX541MTC_NL3 데이터시트(PDF) 6 Page - Fairchild Semiconductor |
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74LCX541MTC_NL3 데이터시트(HTML) 6 Page - Fairchild Semiconductor |
6 / 14 page 6 www.fairchildsemi.com 74LCX541 Rev. 2.0.0 AC Loading and Waveforms (Generic for LCX Family) Figure 1. AC Test Circuit (CL includes probe and jig capacitance) Waveform for Inverting and Non-Inverting Functions Propagation Delay, Pulse Width and trec Waveforms 3-STATE Output Low Enable and Disable Times for Logic 3-STATE Output High Enable and Disable Times for Logic Setup Time, Hold Time and Recovery Time for Logic trise and tfall Figure 2. Waveforms (Input Characteristics; f = 1MHz, tr = tf = 3ns) Test Switch tPLH, tPHL Open tPZL, tPLZ 6V at VCC = 3.3 ± 0.3V VCC x 2 at VCC = 2.5 ± 0.2V tPZH, tPHZ GND VCC DUT CL 500 Ω 500 Ω OPEN tPLH, tPHI tPZH, tPHZ tPZL, tPLZ GND VI TEST SIGNAL VCC GND DATA IN DATA OUT tpxx tpxx Vmi Vmo VCC GND CONTROL IN CLOCK OUTPUT tPHL tPLH trec tW Vmi Vmi Vmo Vmo DATA OUT OUTPUT CONTROL tPZH tPHZ VCC GND Vmi VOH VY Vmo DATA IN CONTROL INPUT MR OR CLEAR tS tS tH trec VCC GND VCC GND Vmi Vmi Vmi ANY OUTPUT tr tf VOH VOL 10% 10% 90% 90% Symbol VCC 3.3V ± 0.3V 2.7V 2.5V ± 0.2V Vmi 1.5V 1.5V VCC / 2 Vmo 1.5V 1.5V VCC / 2 Vx VOL + 0.3V VOL + 0.3V VOL + 0.15V Vy VOH − 0.3V VOH − 0.3V VOH − 0.15V VCC VX VOL GND DATA OUT OUTPUT CONTROL tPZL tPLZ Vmi Vmo |
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