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MC74AC646DW Datasheet(PDF) 5 Page - Motorola, Inc |
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MC74AC646DW Datasheet(HTML) 5 Page - Motorola, Inc |
5 / 9 page MC74AC646 MC74ACT646 5-5 FACT DATA AC CHARACTERISTICS (For Figures and Waveforms — See Section 3) Symbol Parameter VCC* (V) 74AC 74AC Unit Fig. No. Symbol Parameter VCC* (V) TA = +25°C CL = 50 pF TA = –40°C to +85 °C CL = 50 pF Unit Fig. No. Min Typ Max Min Max tPLH Propagation Delay 3.3 4.0 10.5 16.5 3.0 18.5 ns 3-6 tPLH Clock to Bus 5.0 2.5 7.5 12 2.0 13 ns 3-6 tPHL Propagation Delay 3.3 3.0 9.5 14.5 2.5 16 ns 3-6 tPHL Clock to Bus 5.0 2.0 6.5 10.5 1.5 11.5 ns 3-6 tPLH Propagation Delay 3.3 2.5 7.5 12 2.0 13.5 ns 3-5 tPLH Bus to Bus 5.0 1.5 5.0 8.0 1.0 9.0 ns 3-5 tPHL Propagation Delay 3.3 1.5 7.5 12.5 1.5 13.5 ns 3-5 tPHL Bus to Bus 5.0 1.5 5.0 9.0 1.0 9.5 ns 3-5 tPLH Propagation Delay 3.3 5.0 2.0 1.5 8.5 6.0 13.5 10 1.5 1.5 15.5 11 ns 3-6 tPLH SBA or SAB to An or Bn (w/An or Bn HIGH or LOW) 3.3 5.0 2.0 1.5 8.5 6.0 13.5 10 1.5 1.5 15.5 11 ns 3-6 tPHL Propagation Delay 3.3 5.0 1.5 1.5 8.5 6.0 13.5 10 1.5 1.5 15 11 ns 3-6 tPHL SBA or SAB to An or Bn (w/An or Bn HIGH or LOW) 3.3 5.0 1.5 1.5 8.5 6.0 13.5 10 1.5 1.5 15 11 ns 3-6 tPZH Enable Time G to An or Bn 3.3 2.5 7.0 11.5 2.0 12.5 ns 3-7 tPZH G to An or Bn 5.0 1.5 5.0 8.5 1.5 9.0 ns 3-7 tPZL Enable Time G to An or Bn 3.3 2.5 7.5 12.5 2.0 14 ns 3-8 tPZL G to An or Bn 5.0 1.5 5.5 9.0 1.5 10 ns 3-8 tPHZ Disable Time G to An or Bn 3.3 3.0 8.0 12.5 2.5 13.5 ns 3-7 tPHZ G to An or Bn 5.0 2.0 6.5 10 2.0 11 ns 3-7 tPLZ Disable Time G to An or Bn 3.3 2.0 7.5 12 2.0 13.5 ns 3-8 tPLZ G to An or Bn 5.0 1.5 6.0 9.5 1.5 10.5 ns 3-8 tPZH Enable Time DIR to An or Bn 3.3 2.0 6.5 11 1.5 12 ns 3-7 tPZH DIR to An or Bn 5.0 1.5 5.0 7.5 1.0 8.5 ns 3-7 tPZL Enable Time DIR to An or Bn 3.3 2.5 7.0 11.5 2.0 13 ns 3-8 tPZL DIR to An or Bn 5.0 1.5 5.0 8.0 1.0 9.0 ns 3-8 tPHZ Disable Time DIR to An or Bn 3.3 2.5 7.5 11.5 1.5 12.5 ns 3-7 tPHZ DIR to An or Bn 5.0 1.5 5.5 9.5 1.5 10 ns 3-7 tPLZ Disable Time DIR to An or Bn 3.3 1.5 7.5 12 1.5 13.5 ns 3-8 tPLZ DIR to An or Bn 5.0 1.5 5.5 9.5 1.5 10.5 ns 3-8 * Voltage Range 3.3 V is 3.3 V ±0.3 V. Voltage Range 5.0 V is 5.0 V ±0.5 V. |
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