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54FCT377 Datasheet(PDF) 4 Page - National Semiconductor (TI) |
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54FCT377 Datasheet(HTML) 4 Page - National Semiconductor (TI) |
4 / 8 page ![]() AC Electrical Characteristics Symbol Parameter 54FCT Units Fig. No. T A = −55˚C to +125˚C V CC = 4.5V to 5.5V C L = 50 pF Min Max t PLH Propagation Delay 2.0 15.0 ns Figure 4 t PHL CP to O n 2.0 8.3 AC Operating Requirements 54FCT T A = −55˚C to +125˚C Fig. Symbol Parameter V CC = 4.5V to 5.5V Units No. C L = 50 pF Min Max t s(H) Setup Time, HIGH 4.0 ns Figure 6 t s(L) or LOW D n to CP 4.0 t h(H) Hold Time, HIGH 2.5 ns Figure 6 t h(L) or LOW D n to CP 2.5 t s(H) Setup Time, HIGH 4.5 ns Figure 6 t s(L) or LOW CE to CP 4.5 t h(H) Hold Time, HIGH 2.0 ns Figure 6 t h(L) or LOW CE to CP 2.0 t w(H) Pulse Width, CP, 7.0 ns Figure 5 t w(L) HIGH or LOW 7.0 Capacitance Symbol Parameter Max Units Conditions C IN Input Capacitance 10 pF V CC = 0V, TA = 25˚C C OUT (Note 3) Output Capacitance 12 pF V CC = 5.0V Note 3: COUT is measured at frequency f = 1 MHz, per MIL-STD-883B, Method 3012. www.national.com 4 |