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CD74FCT652EN Scheda tecnica(PDF) 5 Page - Texas Instruments |
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CD74FCT652EN Scheda tecnica(HTML) 5 Page - Texas Instruments |
5 / 11 page 8-5 Switching Specifications Over Operating Range FCT Series tr, tf = 2.5ns, CL = 50pF, RL (Figure 4) PARAMETER SYMBOL VCC (V) 25oC0oC TO 70oC UNITS TYP MIN MAX Propagation Delays Stored An → Bn CD74FCT651 tPLH, tPHL 5 6.8 2 9 ns Stored An → Bn CD74FCT652 tPLH, tPHL 5 6.8 2 9 ns Stored Bn → An CD74FCT651 tPLH, tPHL 5 6.8 2 9 ns Stored Bn → An CD74FCT652 tPLH, tPHL 5 6.8 2 9 ns An → Bn CD74FCT651 tPLH, tPHL 5 6.8 2 9 ns An → Bn CD74FCT652 tPLH, tPHL 5 6.8 2 9 ns Bn → An CD74FCT651 tPLH, tPHL 5 6.8 2 9 ns Bn → An CD74FCT652 tPLH, tPHL 5 6.8 2 9 ns Select to Data CD74FCT651, CD74FCT652 tPLH, tPHL 5 8.3 2 11 ns Three-State Enabling Time, Bus to Output or Register to Output CD74FCT651, CD74FCT652 tPZL, tPZH 5 7.5 2 10 ns Three-State Disabling Time, Bus to Output or Register to Output CD74FCT651, CD74FCT652 tPLZ, tPHZ 5 7.5 2 10 ns Power Dissipation Capacitance CPD (Note 8) − pF Minimum (Valley) VOHV During Switching of Other Outputs (Output Under Test Not Switching) VOHV 5 0.5 Typical at 25oCV Maximum (Peak) VOLP During Switching of Other Outputs (Output Under Test Not Switching) VOLP 5 1 Typical at 25oCV Input Capacitance CI --- 10 pF Input/Output Capacitance CI/O --- 15 pF NOTE: 8. 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 PARAMETER SYMBOL VCC (V) 25oC0oC TO 70oC UNITS TYP MIN MAX Maximum Frequency fMAX 5 (Note 9) - 85 - MHz Data to Clock Setup Time tSU 5-4- ns Data to Clock Hold Time tH 5-2- ns Clock Pulse Width tW 5-6- ns NOTE: 9. 5V: Minimum is at 4.75V for 0oC to 70oC, Typical is at 5V. CD74FCT651, CD74FCT652 |
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