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M74HCT138M1R Datenblatt(PDF) 4 Page - STMicroelectronics |
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M74HCT138M1R Datenblatt(HTML) 4 Page - STMicroelectronics |
4 / 9 page M74HCT138 4/9 AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6ns) 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 x VCC x fIN + ICC TEST CIRCUIT CL = 50pF or equivalent (includes jig and probe capacitance) RT = ZOUT of pulse generator (typically 50Ω) 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. tTLH tTHL Output Transition Time 4.5 8 151922 ns tPLH tPHL Propagation Delay Time (A, B, C - Y) 4.5 17 30 38 45 ns tPLH tPHL Propagation Delay Time (G1 - Y) 4.5 16 30 38 45 ns tPLH tPHL Propagation Delay Time (G2 - Y) 4.5 19 30 38 45 ns 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 5 101010 pF CPD Power Dissipation Capacitance (note 1) 52 pF |
Ähnliche Teilenummer - M74HCT138M1R |
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Ähnliche Beschreibung - M74HCT138M1R |
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