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CD74HC393E Datasheet(PDF) 7 Page - Texas Instruments |
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CD74HC393E Datasheet(HTML) 7 Page - Texas Instruments |
7 / 15 page 7 HCT TYPES Propagation Delay Time (Figure 1) tPLH, tPHL CL = 50pF 4.5 - - 32 - 40 - 48 ns nCP to nQ0 CL =15pF 5 - 13 - - - - - ns nCP to nQ1 tPLH, tPHL CL = 50pF 4.5 - - 44 - 55 - 66 ns nCP to nQ2 tPLH, tPHL CL = 50pF 4.5 - - 50 - 63 - 75 ns nCP to nQ3 tPLH, tPHL CL = 50pF 4.5 - - 62 - 78 - 93 ns MR to Qn tPLH, tPHL CL = 50pF 4.5 - - 32 - 40 - 48 ns CL =15pF 5 - 13 - - - - - ns Output Transition tTLH,tTHL CL = 50pF 4.5 - - 15 - 19 - 22 ns Input Capacitance CIN CL =15pF - - - 10 - 10 - 10 pF Power Dissipation Capacitance (Notes 3, 4) CPD CL =15pF 5 - 21 - - - - - pF NOTES: 3. CPD is used to determine the dynamic power consumption, per stage. 4. PD = VCC 2 f i (CPD + CL) where fi = Input Frequency, CL = Output Load Capacitance, VCC = Supply Voltage. Switching Specifications Input tr, tf = 6ns (Continued) PARAMETER SYMBOL TEST CONDITIONS VCC (V) 25oC -40oC TO 85oC -55oC TO 125oC UNITS MIN TYP MAX MIN MAX MIN MAX Test Circuits and Waveforms FIGURE 1. HC AND HCU TRANSITION TIMES AND PROPAGA- TION DELAY TIMES, COMBINATION LOGIC FIGURE 2. HCT TRANSITION TIMES AND PROPAGATION DELAY TIMES, COMBINATION LOGIC tPHL tPLH tTHL tTLH 90% 50% 10% 50% 10% INVERTING OUTPUT INPUT GND VCC tr = 6ns tf = 6ns 90% tPHL tPLH tTHL tTLH 2.7V 1.3V 0.3V 1.3V 10% INVERTING OUTPUT INPUT GND 3V tr = 6ns tf = 6ns 90% CD54HC393, CD74HC393, CD54HCT393, CD74HCT393 |
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