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74HC244DTR2G датащи(PDF) 4 Page - ON Semiconductor |
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74HC244DTR2G датащи(HTML) 4 Page - ON Semiconductor |
4 / 7 page 74HC244 http://onsemi.com 4 AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6 ns) Symbol Parameter VCC (V) Guaranteed Limit Unit – 55 to 25_C v85_C v125_C tPLH, tPHL Maximum Propagation Delay, A to YA or B to YB (Figures 1 and 3) 2.0 3.0 4.5 6.0 96 50 18 15 115 60 23 20 135 70 27 23 ns tPLZ, tPHZ Maximum Propagation Delay, Output Enable to YA or YB (Figures 2 and 4) 2.0 3.0 4.5 6.0 110 60 22 19 140 70 28 24 165 80 33 28 ns tPZL, tPZH Maximum Propagation Delay, Output Enable to YA or YB (Figures 2 and 4) 2.0 3.0 4.5 6.0 110 60 22 19 140 70 28 24 165 80 33 28 ns tTLH, tTHL Maximum Output Transition Time, Any Output (Figures 1 and 3) 2.0 3.0 4.5 6.0 60 23 12 10 75 27 15 13 90 32 18 15 ns Cin Maximum Input Capacitance − 10 10 10 pF Cout Maximum Three−State Output Capacitance (Output in High−Impedance State) − 15 15 15 pF NOTE: For propagation delays with loads other than 50 pF, and information on typical parametric values, see Chapter 2 of the ON Semiconductor High−Speed CMOS Data Book (DL129/D). CPD Power Dissipation Capacitance (Per Buffer)* Typical @ 25°C, VCC = 5.0 V pF 34 * Used to determine the no−load dynamic power consumption: PD = CPD VCC2f + ICC VCC. For load considerations, see Chapter 2 of the ON Semiconductor High−Speed CMOS Data Book (DL129/D). SWITCHING WAVEFORMS Figure 1. Figure 2. VCC GND tf tr DATA INPUT A OR B OUTPUT YA OR YB 10% 50% 90% 10% 50% 90% tTLH tPLH tPHL tTHL ENABLE A OR B OUTPUT Y OUTPUT Y 50% 50% 50% 90% 10% tPZL tPLZ tPZH tPHZ VCC GND HIGH IMPEDANCE VOL VOH HIGH IMPEDANCE |
Аналогичный номер детали - 74HC244DTR2G |
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Аналогичное описание - 74HC244DTR2G |
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