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M54HC595 датащи(PDF) 7 Page - STMicroelectronics |
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M54HC595 датащи(HTML) 7 Page - STMicroelectronics |
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7 / 15 page ![]() M54HC595 7/15 Table 7: Capacitive Characteristics 1) 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 operating current can be obtained by the following equation. ICC(opr) =CPD xVCC xfIN +ICC tW(L) Minimum Pulse Width (SCLR) 2.0 50 20 75 95 110 ns 4.5 6 15 19 22 6.0 6 13 16 19 ts Minimum Set-up Time (SI - CCK) 2.0 50 25 50 65 75 ns 4.5 5 10 13 15 6.0 4 9 11 13 ts Minimum Set-up Time (SCK - RCK) 2.0 50 35 75 95 110 ns 4.5 8 15 19 22 6.0 6 13 16 19 ts Minimum Set-up Time (SCRL - RCK) 2.0 50 40 100 125 145 ns 4.5 10 20 25 29 6.0 7 17 21 25 th Minimum Hold Time 2.0 50 00 0 ns 4.5 0 0 0 6.0 0 0 0 tREM Minimum Clear Removal Time 2.0 50 15 50 65 75 ns 4.5 3 10 13 15 6.0 3 9 11 13 Symbol Parameter Test Condition Value Unit VCC (V) TA = 25°C -40 to 85°C -55 to 125°C Min. Typ. Max. Min. Max. Min. Max. CIN Input Capacitance 510 10 10 pF CPD Power Dissipation Capacitance (note 1) 184 pF Symbol Parameter Test Condition Value Unit VCC (V) CL (pF) TA = 25°C -40 to 85°C -55 to 125°C Min. Typ. Max. Min. Max. Min. Max. |
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