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CD74HCT354 датащи(PDF) 9 Page - Texas Instruments |
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CD74HCT354 датащи(HTML) 9 Page - Texas Instruments |
9 / 15 page 9 Propagation Delay, Sn → Y, Y tPLH, tPHL CL = 50pF 4.5 - 59 74 89 ns CL = 15pF 5 25 - - - ns Propagation Delay, LE → Y, Y tPLH, tPHL CL = 50pF 4.5 - 63 79 94 ns CL = 15pF 5 25 - - - ns Output Disabling Time, OEn to Y, Y tPLZ, tPHZ CL = 50pF 4.5 - 33 41 50 ns CL = 15pF 5 13, 16 - - - ns Output Disabling Time, OE3 to Y, Y tPLZ, tPHZ CL = 50pF 4.5 - 39 49 59 ns CL = 15pF 5 13, 16 - - - ns Output Enabling Time, OEn to Y, Y tPZL, tPZH CL = 50pF 4.5 - 34 43 51 ns CL = 15pF 5 14 - - - ns Output Enabling Time, OE3 to Y, Y tPZL, tPZH CL = 50pF 4.5 - 34 43 51 ns CL = 15pF 5 14 - - - ns Output Transition Time tTLH, tTHL CL = 50pF 4.5 - 12 15 18 ns Input Capacitance CIN -- - 10 10 10 pF Three-State Capacitance CO -- - 20 20 20 pF Power Dissipation Capacitance (Notes 4, 5) CPD - 5 92 - - - pF NOTES: 4. CPD is used to determine the dynamic power consumption, per device. 5. PD = VCC 2 (C PD + 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 TYP MAX MAX MAX Test Circuits and Waveforms NOTE: Outputs should be switching from 10% VCC to 90% VCC in accordance with device truth table. For fMAX, input duty cycle = 50%. FIGURE 2. HC CLOCK PULSE RISE AND FALL TIMES AND PULSE WIDTH NOTE: Outputs should be switching from 10% VCC to 90% VCC in accordance with device truth table. For fMAX, input duty cycle = 50%. FIGURE 3. HCT CLOCK PULSE RISE AND FALL TIMES AND PULSE WIDTH CLOCK 90% 50% 10% GND VCC trCL tfCL 50% 50% tWL tWH 10% tWL + tWH = fCL I CLOCK 2.7V 1.3V 0.3V GND 3V trCL = 6ns tfCL = 6ns 1.3V 1.3V tWL tWH 0.3V tWL + tWH = fCL I CD54HC354, CD74HC354, CD74HCT354 |
Аналогичный номер детали - CD74HCT354 |
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Аналогичное описание - CD74HCT354 |
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