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TC74LCX646FS Datasheet(PDF) 7 Page - Toshiba Semiconductor |
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TC74LCX646FS Datasheet(HTML) 7 Page - Toshiba Semiconductor |
7 / 11 page TC74LCX646FS 2002-01-11 7 AC Characteristics (Ta ==== ----40 to 85°C) Characteristics Symbol Test Condition VCC (V) Min Max Unit 2.7 ¾ ¾ Maximum clock frequency fmax Figure 1, Figure 2 3.3 ± 0.3 150 ¾ MHz 2.7 ¾ 8.0 Propagation delay time (An, Bn-Bn, An) tpLH tpHL Figure 1, Figure 2 3.3 ± 0.3 1.5 7.0 ns 2.7 ¾ 9.5 Propagation delay time (CAB, CBA-Bn, An) tpLH tpHL Figure 1, Figure 5 3.3 ± 0.3 1.5 8.5 ns 2.7 ¾ 9.5 Propagation delay time (SAB, SBA-Bn, An) tpLH tpHL Figure 1, Figure 2 3.3 ± 0.3 1.5 8.5 ns 2.7 ¾ 9.5 Output enable time ( OE , DIR-An, Bn) tpZL tPZH Figure 1, Figure 3, Figure 4 3.3 ± 0.3 1.5 8.5 ns 2.7 ¾ 9.5 Output disable time ( OE , DIR-An, Bn) tpLZ tpHZ Figure 1, Figure 3, Figure 4 3.3 ± 0.3 1.5 8.5 ns 2.7 3.3 ¾ Minimum pulse width tW (H) tW (L) Figure 1, Figure 5 3.3 ± 0.3 3.3 ¾ ns 2.7 2.5 ¾ Minimum setup time ts Figure 1, Figure 5 3.3 ± 0.3 2.5 ¾ ns 2.7 1.5 ¾ Minimum hold time th Figure 1, Figure 5 3.3 ± 0.3 1.5 ¾ ns 2.7 ¾ ¾ Output to output skew tosLH tosHL (Note 10) 3.3 ± 0.3 ¾ 1.0 ns Note 10: Parameter guaranteed by design. (tosLH = |tpLHm - tpLHn|, tosHL = |tpHLm - tpHLn|) Dynamic Switching Characteristics (Ta ==== 25°C, input: tr ==== tf ==== 2.5 ns, CL ==== 50 pF, RL ==== 500 W W W W) Characteristics Symbol Test Condition VCC (V) Typ. Unit Quiet output maximum dynamic VOL VOLP VIH = 3.3 V, VIL = 0 V 3.3 0.8 V Quiet output minimum dynamic VOL |VOLV| VIH = 3.3 V, VIL = 0 V 3.3 0.8 V Capacitive Characteristics (Ta ==== 25°C) Characteristics Symbol Test Condition VCC (V) Typ. Unit Input capacitance CIN DIR, OE , CAB, CBA, SAB, SBA 3.3 7 pF Bus input capacitance CI/O An, Bn 3.3 8 pF Power dissipation capacitance CPD fIN = 10 MHz (Note 11) 3.3 25 pF Note 11: 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/8 (per bit) |
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