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M74HC4538M1R Folha de dados(PDF) 7 Page - STMicroelectronics |
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M74HC4538M1R Folha de dados(HTML) 7 Page - STMicroelectronics |
7 / 14 page AC ELECTRICAL CHARACTERISTICS (CL =50 pF, Input tr =tf =6 ns) Symbol Parameter Test Conditions Value Unit VCC (V) TA =25 oC 54HC and 74HC -40 to 85 oC 74HC -55 to 125 oC 54HC Min. Typ. Max. Min. Max. Min. Max. tTLH tTHL Output Transition Time 2.0 30 75 95 110 ns 4.5 8 151922 6.0 7 131619 tPLH tPHL Propagation Delay Time (A, B - Q, Q) 2.0 120 250 315 375 ns 4.5 30 50 63 75 6.0 25 43 54 64 tPLH tPHL Propagation Delay Time (CD - Q, Q) 2.0 100 195 245 295 ns 4.5 25 39 49 59 6.0 20 33 42 50 tWOUT Output Pulse Width 2.0 CX =0 RX =5K Ω 540 1200 1500 1800 ns 4.5 RX =1K Ω 180 250 320 375 6.0 RX =1K Ω 150 200 260 320 2.0 CX = 0.01 µF RX = 10K Ω 70 83 96 70 96 70 96 µs 4.5 69 77 85 69 85 69 85 6.0 69 77 85 69 85 69 85 2.0 CX = 0.1 µF RX = 10K Ω 0.67 0.75 0.83 0.67 0.83 0.67 0.9 ms 4.5 0.67 0.73 0.77 0.67 0.77 0.67 0.8 6.0 0.67 0.73 0.77 0.67 0.77 0.67 0.8 ∆tWOUT Output Pulse Width Error Between Circuits (In same pack) ±1 % tW(H) tW(L) Minimum Pulse Width (CLOCK) 2.0 30 75 95 110 ns 4.5 8 151922 6.0 7 131619 tW(L) Minimum Pulse Width (CLEAR) 2.0 30 75 95 110 ns 4.5 8 151922 6.0 7 131619 tREM Minimum Clear Removal Time 2.0 0 151520 ns 4.5 0 5 5 7 6.0 0 5 5 ts Minimum Retrigger Time 2.0 CX = 0.1 µF RX =1K Ω 380 6 ns 4.5 92 6.0 72 2.0 CX = 0.01 µF RX =1K Ω 6 µs 4.5 1.4 6.0 1.2 CIN Input Capacitance 5 10 10 10 pF CPD (*) Power Dissipation Capacitance 70 pF (*) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without load. (Refer to Test Circuit). Average operting current can be obtained by the following equation. ICC(opr) = CPD •VCC •fIN +ICC‘ •Duty/100 + ICC/2 (per circuit) (ICC‘ = Active Supply Current) (Duty = %)) M54/ M74HC4538 7/14 |
Nº de peça semelhante - M74HC4538M1R |
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Descrição semelhante - M74HC4538M1R |
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