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M54HC4351 数据表(PDF) 6 Page - STMicroelectronics |
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M54HC4351 数据表(HTML) 6 Page - STMicroelectronics |
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6 / 16 page ![]() AC ELECTRICAL CHARACTERISTICS for HC4351 (CL =50 pF, Input tr =tf =6 ns, GND=0V) Symbol Parameter Test Conditions Value Unit VCC (V) VEE (V) TA =25 oC 54HC and 74HC -40 to 85 oC 74HC -55 to 125 oC 54HC Min. Typ. Max. Min. Max. Min. Max. ΦI/O Phase Difference Between Input and Output 2.0 GND 25 60 75 ns 4.5 GND 6 12 15 6.0 GND 5 10 13 4.5 -4.5 4 tPZL tPZH Output Enable Time (E1, E2 - O) 2.0 GND RL =1K Ω 80 200 250 300 ns 4.5 GND 20 40 50 60 6.0 GND 16 34 43 51 4.5 -4.5 18 tPZL tPZH Output Enable Time (LE - I/O) 2.0 GND RL =1K Ω 80 225 280 340 ns 4.5 GND 22 45 56 68 6.0 GND 17 38 48 57 4.5 -4.5 18 tPZL tPZH Output Enable Time (A, B, C - I/O) 2.0 GND RL =1K Ω 75 225 280 340 ns 4.5 GND 22 45 56 68 6.0 GND 16 38 48 57 4.5 -4.5 17 tPLZ tPHZ Output Disable Time (E1, E2 - O) 2.0 GND RL =1K Ω 120 275 344 415 ns 4.5 GND 38 55 69 83 6.0 GND 33 47 59 71 4.5 -4.5 30 tPLZ tPHZ Output Disable Time (LE - I/O) 2.0 GND RL =1K Ω 120 275 344 415 ns 4.5 GND 40 55 69 83 6.0 GND 35 47 59 71 4.5 -4.5 34 tPLZ tPHZ Output Disable Time (A, B, C - I/O) 2.0 GND RL =1K Ω 120 290 363 433 ns 4.5 GND 40 58 73 87 6.0 GND 35 49 61 74 4.5 -4.5 35 tW(H) Minimum Pulse Width (LE) 2.0 75 95 110 ns 4.5 15 19 22 6.0 13 16 19 ts Minimum Set Up Time 2.0 50 60 75 ns 4.5 10 12 15 6.0 9 11 13 th Minimum Hold Time 2.0 5 5 5 ns 4.5 5 5 5 6.0 5 5 5 CIN Input Capacitance 5 10 10 10 pF CIS Common Terminal Capacitance 5.0 -5.0 36 70 70 70 pF COS Switch Terminal Capacitance 5.0 -5.0 7 151515 pF CIOS Feed Through Capacitance 5.0 -5.0 0.95 2 2 2 pF CPD (*) Power Dissipation Capacitance 5.0 GND 23 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 M54/M74HC4351/4352/4353 6/16 |
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