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74VCX16839 Datasheet(PDF) 5 Page - Fairchild Semiconductor |
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74VCX16839 Datasheet(HTML) 5 Page - Fairchild Semiconductor |
5 / 7 page 5 www.fairchildsemi.com AC Electrical Characteristics VCX16839 (Note 8) Note 8: For CL = 50 PF, add approximately 300 ps to the AC maximum specification. Note 9: 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). Extended AC Electrical Characteristics (Note 10) Note 10: This parameter is guaranteed by characterization but not tested. Dynamic Switching Characteristics Capacitance Symbol Parameter TA = −40°C to +85°C, CL = 30 pF, RL = 500Ω Units VCC = 3.3V ± 0.3V VCC = 2.5V ± 0.2V VCC = 1.8V ± 0.15V Min Max Min Max Min Max fMAX Maximum Clock Frequency 250 200 100 MHz tPHL Propagation Delay In to On 0.8 2.5 1.0 3.5 1.5 7.0 ns tPLH (REGE = 0) tPHL Propagation Delay CLK to On 0.8 3.2 1.0 4.4 1.5 8.8 ns tPLH (REGE = 1) tPHL, tPLH Propagation Delay REGE to On 0.8 4.0 1.0 5.0 1.5 9.8 ns tPZL, tPZH Output Enable Time 0.8 3.8 1.0 4.9 1.5 9.8 ns tPLZ, tPHZ Output Disable Time 0.8 3.7 1.0 4.2 1.5 7.6 ns tS Setup Time 1.0 1.0 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 9) Symbol Parameter TA = −0°C to +85°C, RL = 500Ω VCC = 3.3V ± 0.3V Units CL = 50 pF Min Max tPHL, tPLH Propagation Delay In to On (REGE = 0) 1.0 2.8 ns tPHL, tPLH Propagation Delay CLK to On (REGE = 1) 1.4 3.5 ns tPHL, tPLH Propagation Delay REGE to On 1.0 4.3 ns tPZL, tPZH Output Enable Time 1.0 4.1 ns tPLZ, tPHZ Output Disable Time 1.0 4.0 ns tS Setup Time 1.0 ns tH Hold Time 0.7 ns Symbol Parameter Conditions VCC (V) TA = +25°C Units Typical VOLP Quiet Output Dynamic Peak VOL CL = 30 pF, VIH = VCC, VIL = 0V 1.8 0.25 V 2.5 0.6 3.3 0.8 VOLV Quiet Output Dynamic Valley VOL CL = 30 pF, VIH = VCC, VIL = 0V 1.8 −0.25 V 2.5 −0.6 3.3 −0.8 VOHV Quiet Output Dynamic Valley VOH CL = 30 pF, VIH = VCC, VIL = 0V 1.8 1.5 V 2.5 1.9 3.3 2.2 Symbol Parameter Conditions TA = +25°C Units Typical CIN Input Capacitance VCC = 1.8V, 2.5V or 3.3V, VI = 0V or VCC 6pF COUT Output Capacitance VI = 0V or VCC, VCC = 1.8V, 2.5V or 3.3V 7 pF CPD Power Dissipation Capacitance VI = 0V or VCC, f = 10 MHz, 20 pF VCC = 1.8V, 2.5V or 3.3V |
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