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CD74ACT245SM Datasheet(PDF) 6 Page - Texas Instruments |
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CD74ACT245SM Datasheet(HTML) 6 Page - Texas Instruments |
6 / 8 page 6 Three-State Output Capacitance CO - - 15 - - 15 - pF Input Capacitance CI - - -10- -10 pF Power Dissipation Capacitance CPD (Note 11) - - 57 - - 57 - pF NOTES: 8. Limits tested 100%. 9. 3.3V Min is at 3.6V, Max is at 3V. 10. 5V Min is at 5.5V, Max is at 4.5V 11. CPD is used to determine the dynamic power consumption per channel. AC: PD = VCC 2 f i (CPD + CL) ACT: PD = VCC 2 f i (CPD + CL) + VCC ∆ICC where fi = input frequency, CL = output load capacitance, VCC = supply voltage. NOTES: 12. Input pulses have the following characteristics: PRR ≤ 1MHz, tr = 3ns, SKEW 1ns. 13. R.F. fixture with 700MHz design rules required. IC should be soldered into test board and bypassed with 0.1 µF capacitor. Scope and probes require 700MHz bandwidth. FIGURE 1. SIMULTANEOUS SWITCHING TRANSIENT WAVEFORMS Switching Specifications Input tr, tf = 3ns, CL = 50pF (Worst Case) (Continued) PARAMETER SYMBOL VCC (V) -40oC TO 85oC -55oC TO 125oC UNITS MIN TYP MAX MIN TYP MAX OTHER OUTPUTS OUTPUT UNDER TEST VOH VOL VOHV VOLP VOL VOH CD74AC245, CD74ACT245 |
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