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CD74HC688PWT 数据表(PDF) 6 Page - Texas Instruments |
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CD74HC688PWT 数据表(HTML) 6 Page - Texas Instruments |
6 / 17 page 6 E to Output tPLH, tPHL CL = 50pF 2 - - 120 - 150 - 180 ns 4.5 - - 24 - 30 - 36 ns CL =15pF 5 - 9 - - - - - ns CL = 50pF 6 - - 20 - 26 - 30 ns Output Transition Time (Figure 1) tTLH,tTHL CL = 50pF 2 - - 75 - 95 - 110 ns 4.5 - - 15 - 19 - 22 ns 6 - - 13 - 16 - 19 ns Input Capacitance CIN CL = 50pF - - - 10 - 10 - 10 pF Power Dissipation Capacitance (Notes 3, 4) CPD CL =15pF 5 - 22 - - - - - pF HCT TYPES Propagation Delay (Figure 1) tPLH, tPHL CL = 50pF 4.5 - - 34 - 42 - 51 ns An to Output CL =15pF 5 - 14 - - - - - ns Bn to Output tPLH, tPHL CL = 50pF 4.5 - - 34 - 42 - 51 ns CL =15pF 5 - 14 - - - - - ns E to Output tPLH, tPHL CL = 50pF 4.5 - - 24 - 30 - 36 ns CL =15pF 5 - 9 - - - - - ns Output Transition Time (Figure 1) tTLH,tTHL CL = 50pF 4.5 - - 15 - 19 - 22 ns Input Capacitance CIN CL = 50pF - - - 10 - 10 - 10 pF Power Dissipation Capacitance (Notes 3, 4) CPD CL =15pF 5 - 22 - - - - - pF NOTES: 3. CPD is used to determine the dynamic power consumption, per gate. 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 Circuit and Waveform FIGURE 1. PROPAGATION DELAY AMD TRANSITION TIMES tr = 6ns OUTPUT Y tf = 6ns 90% VS 10% VS tTLH ANY INPUT A OR B INPUT LEVEL GND tPLH tPHL tTHL CD54HC688, CD74HC688, CD54HCT688, CD74HCT688 |
类似零件编号 - CD74HC688PWT |
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类似说明 - CD74HC688PWT |
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