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74HC595 Datasheet(PDF) 6 Page - STMicroelectronics |
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74HC595 Datasheet(HTML) 6 Page - STMicroelectronics |
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6 / 13 page ![]() AC ELECTRICAL CHARACTERISTICS (CL =50 pF, Input tr =tf =6 ns) Symbol Parameter Test Conditions Value Unit VCC (V) CL (pF) 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 (Qn) 2.0 50 25 60 75 90 ns 4.5 7 121518 6.0 6 101315 tTLH tTHL Output Transition Time (QH’) 2.0 50 30 75 95 115 ns 4.5 8 151923 6.0 7 131620 tPLH tPHL Propagation Delay Time (SCK - QH’) 2.0 50 45 125 155 190 ns 4.5 15 25 31 38 6.0 13 21 26 32 tPLH tPHL Propagation Delay Time (SCLR - QH’) 2.0 50 60 175 220 265 ns 4.5 18 35 44 53 6.0 15 30 37 45 tPLH tPHL Propagation Delay Time (RCK - Qn) 2.0 50 60 150 190 225 ns 4.5 20 30 38 45 6.0 17 26 32 38 2.0 150 75 190 240 285 ns 4.5 25 38 48 57 6.0 22 32 41 48 tPZL tPZH 3 State Output Enable Time 2.0 50 RL =1 K Ω 45 135 170 205 ns 4.5 15 27 34 41 6.0 13 23 29 35 2.0 150 RL =1 K Ω 60 175 220 265 ns 4.5 20 35 44 53 6.0 17 30 37 45 tPLZ tPHZ 3 State Output Disable Time 2.0 50 RL =1 K Ω 30 150 190 225 ns 4.5 15 30 38 45 6.0 14 26 32 38 fMAX Maximum Clock Frequency 2.0 50 6.0 17 4.8 4 ns 4.5 30 50 24 20 6.0 35 59 28 24 2.0 150 5.2 14 4.2 3.4 ns 4.5 26 40 21 17 6.0 31 45 25 20 tW(H) Minimum Pulse Width (SCK, RCK) 2.0 50 17 75 95 110 ns 4.5 6 151922 6.0 6 131619 tW(L) Minimum Pulse Width (SCLR) 2.0 50 20 75 95 110 ns 4.5 6 151922 6.0 6 131619 ts Minimum Set-up Time (SI - CCK) 2.0 50 25 50 65 75 ns 4.5 5 101315 6.0 4 9 11 13 M54/M74HC595 6/13 |
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