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TC74LCX16244FT 데이터시트(PDF) 6 Page - Toshiba Semiconductor |
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TC74LCX16244FT 데이터시트(HTML) 6 Page - Toshiba Semiconductor |
6 / 9 page TC74LCX16244FT 2002-10-1 6 Dynamic Switching Characteristics (Ta ==== 25°C, input: tr ==== tf ==== 2.5 ns, RL ==== 500 W W W W) Characteristics Symbol Test Condition VCC (V) Typ. Unit VIH = 2.5 V, VIL = 0 V, CL =30pF 2.5 0.6 Quiet output maximum dynamic VOL VOLP VIH = 3.3 V, VIL = 0 V, CL =50pF 3.3 0.8 V VIH = 2.5 V, VIL = 0 V, CL =30pF 2.5 0.6 Quiet output minimum dynamic VOL |VOLV| VIH = 3.3 V, VIL = 0 V, CL =50pF 3.3 0.8 V Capacitive Characteristics (Ta ==== 25°C) Characteristics Symbol Test Condition VCC (V) Typ. Unit Input capacitance CIN ¾ 3.3 7 pF Output capacitance COUT ¾ 3.3 8 pF Power dissipation capacitance CPD fIN = 10 MHz (Note 12) 3.3 25 pF Note 12: CPD is defined as the value of the internal equivalent capacitance which is calculated from the operating current consumption without load. Average operating current can be obtained by the equation: ICC (opr) = CPD・VCC・fIN + ICC/16 (per bit) AC Test Circuit AC Waveform Figure 1 Parameter Switch tpLH, tpHL Open tpLZ, tpZL 6.0 V @VCC = 3.3 ± 0.3 V VCC ´ 2 @VCC = 2.5 ± 0.2 V tpHZ, tpZH GND 6.0 V or VCC ´ 2 Open GND Switch Output Measure RL = 500 W 90% 10% Output (Y) Input (A) VOL VOH GND VIH VM tpLH tpHL tr 2.5 ns tf 2.5 ns VM Figure 2 tpLH, tpHL |
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