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74VCX162835 Scheda tecnica(PDF) 5 Page - Fairchild Semiconductor |
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74VCX162835 Scheda tecnica(HTML) 5 Page - Fairchild Semiconductor |
5 / 8 page 5 www.fairchildsemi.com AC Electrical Characteristics (Note 10) Note 10: For CL =50pF, add approximately 300ps to the AC maximum specification. Note 11: Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate outputs of the same device. The specification applies to any outputs switching in the same direction, either HIGH-to-LOW (tOSHL) or LOW-to-HIGH (tOSLH). AC Electrical Characteristics Over Load (Note 12) Note 12: Characterized only. Note 13: SSO=Simultaneous Switching Output. Any output combination of LOW-to-HIGH and/or HIGH-to-LOW transition. Dynamic Switching Characteristics Symbol Parameter TA = −40°C to +85°C, CL = 30 pF, RL = 500Ω Units VCC = 3.3V ± 0.3V VCC = 2.5 ± 0.2V VCC = 1.8 ± 0.15V MinMax MinMax MinMax fMAX Maximum Clock Frequency 250 200 100 MHz tPHL, tPLH Propagation Delay 0.6 3.9 0.8 5.0 1.5 9.8 ns Bus to Bus tPHL, tPLH Propagation Delay 1.4 4.2 1.5 5.2 2.0 9.2 ns Clock to Bus tPHL, tPLH Propagation Delay 0.6 4.7 0.8 5.8 1.5 9.8 ns LE to Bus tPZL, tPZH Output Enable Time 0.6 4.3 0.8 5.9 1.5 9.8 ns tPLZ, tPHZ Output Disable Time 0.6 4.2 0.8 4.7 1.5 7.9 ns tS Setup Time 1.5 1.5 2.5 ns tH Hold Time 0.7 0.7 1.0 ns tW Pulse Width 1.5 1.5 4.0 ns tOSHL Output to Output Skew 0.5 0.5 0.75 ns tOSLH (Note 11) Symbol Parameter TA = −0°C to +85°C, RL = 500Ω VCC = 3.3V ± 0.15V Units CL = 0 pF CL = 50 pF Min Max Min Max tPHL, tPLH Prop Delay Bus to Bus 0.7 2.6 1.0 4.2 ns tPHL, tPLH Prop Delay Clock to Bus 1.4 2.9 1.9 4.5 ns tPHL, tPLH Prop Delay LE to Bus 0.7 3.4 1.0 5.0 ns tPZL, tPZH Output Enable Time 0.7 3.0 1.0 4.6 ns tPLZ, tPHZ Output Disable Time 0.7 2.9 1.0 4.5 ns tPHL, tPLH SSO Prop Delay Clock to Bus (Note 13) 1.4 3.2 ns tS Setup Time 1.5 1.5 ns tH Hold Time 0.7 0.7 ns Symbol Parameter Conditions VCC TA=+25°C Units (V) Typical VOLP Quiet Output Dynamic Peak VOL CL = 30 pF, VIH = VCC, VIL = 0V 1.8 0.25 2.5 0.35 V 3.3 0.45 VOLV Quiet Output Dynamic Valley VOL CL = 30 pF, VIH = VCC, VIL = 0V 1.8 −0.25 2.5 −0.35 V 3.3 −0.45 VOHV Quiet Output Dynamic Valley VOH CL = 30 pF, VIH = VCC, VIL = 0V 1.8 1.35 2.5 1.85 V 3.3 2.45 |
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