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CD74FCT273 Arkusz danych(PDF) 4 Page - Texas Instruments |
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CD74FCT273 Arkusz danych(HTML) 4 Page - Texas Instruments |
4 / 7 page 4 Switching Specifications Over Operating Range FCT Series tr, tf = 2.5ns, CL = 50pF, RL (Figure 4) (Note 6) PARAMETER SYMBOL VCC (V) 25oC0oC TO 70oC UNITS TYP MIN MAX Propagation Delays CP to Qn tPLH, tPHL 572 13 ns MR to Qn tPLH, tPHL 582 13 ns Power Dissipation Capacitance CPD (Note 7) -36- - pF Input Capacitance CI --- 10 pF NOTES: 6. 5V: Min is at 5.25V for 0oC to 70oC, Max is at 4.75V for 0oC to 70oC, Typ is at 5V. 7. CPD, measured per flip-flop, is used to determine the dynamic power consumption. PD (per package) = VCC ICC + Σ(VCC 2 f I CPD + VO 2 f O CL + VCC ∆ICC D) where: VCC = supply voltage ∆ICC = flow through current x unit load CL = output load capacitance D = duty cycle of input high fO = output frequency fI = input frequency Prerequisite for Switching (Note 8) PARAMETER SYMBOL VCC (V) 25oC0oC TO 70oC UNITS TYP MIN MAX Data to CP Setup Time tSU 5-3- ns Hold Time tH 5-2- ns Removal Time, MR to CP tREM 5-4- ns MR Pulse Width tW 5-7- ns CP Pulse Width tW 5-7- ns CP Frequency fMAX 5 - 70 - MHz NOTE: 8. 5V: Minimum is at 4.75V for 0oC to 70oC, Typical is at 5V. CD74FCT273 |
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