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DM74ALS74 Scheda tecnica(PDF) 3 Page - Fairchild Semiconductor |
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DM74ALS74 Scheda tecnica(HTML) 3 Page - Fairchild Semiconductor |
3 / 7 page 3 www.fairchildsemi.com Absolute Maximum Ratings(Note 2) Note 2: The “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated at these limits. The parametric values defined in the Electrical Characteristics tables are not guaranteed at the absolute maximum ratings. The “Recommended Operating Conditions” table will define the conditions for actual device operation. Recommended Operating Conditions Note 3: The ( ↑) arrow indicates the positive edge of the Clock is used for reference. Supply Voltage 7V Input Voltage 7V Operating Free Air Temperature Range 0 °C to +70°C Storage Temperature Range −65°C to +150°C Typical θ JA N Package 87.0 °C/W M Package 117.0 °C/W Symbol Parameter Min Nom Max Units VCC Supply Voltage 4.5 5 5.5 V VIH HIGH Level Input Voltage 2 V VIL LOW Level Input Voltage 0.8 V IOH HIGH Level Output Current −0.4 mA IOL LOW Level Output Current 8 mA fCLK Clock Frequency 0 34 MHz tW(CLK) Width of Clock Pulse HIGH 14.5 ns LOW 14.5 ns tW Pulse Width LOW 14.5 ns Preset & Clear tSU Data Setup Time Data 15 ↑ (Note 3) PRE or CLR 10 ↑ (Note 3) ns Inactive tH Data Hold Time 0 ↑ (Note 3) ns TA Free Air Operating Temperature 0 70 °C |
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