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DM74AS874 Datasheet(PDF) 3 Page - Fairchild Semiconductor |
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DM74AS874 Datasheet(HTML) 3 Page - Fairchild Semiconductor |
3 / 6 page ![]() 3 www.fairchildsemi.com Absolute Maximum Ratings(Note 1) Note 1: 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 2: The ( ↑) arrow indicates the positive edge of the Clock is used for reference. Electrical Characteristics over recommended operating free air temperature range. All typical values are measured at VCC = 5V, TA = 25°C. Note 3: The output conditions have been chosen to produce a current that closely approximates one-half of the true short-circuit current, IOS. Supply Voltage 7V Input Voltage 7V Voltage Applied to Disabled Output 5.5V Operating Free Air Temperature Range 0 °C to +70°C Storage Temperature Range −65°C to +150°C Typical θ JA N Package 47.0 °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 −15 mA IOL LOW Level Output Current 48 mA fCLK Clock Frequency 0 80 MHz tWCLK Width of Clock Pulse HIGH 3 ns LOW 6 tWCLR Width of Clear Pulse LOW 2 ns tSU Setup Time Data 4 ↑ ns (Note 2) Clear Inactive 5 ↑ tH Data Hold Time (Note 2) 1 ↑ ns TA Free Air Operating Temperature 0 70 °C Symbol Parameter Conditions Min Typ Max Units VIK Input Clamp Voltage VCC = 4.5V, II = −18 mA −1.2 V VOH HIGH Level VCC = 4.5V, VIL = VIL Max, IOH = Max 2.4 3.3 V Output Voltage IOH = −2 mA, VCC = 4.5V to 5.5V VCC − 2 VOL LOW Level VCC = 4.5V, VIH = 2V, 0.35 0.5 V Output Voltage IOL = Max II Input Current at Max Input Voltage VCC = 5.5V, VIH = 7V 0.1 mA IIH HIGH Level Input Current VCC = 5.5V, VIH = 2.7V 20 µA IIL LOW Level Input Current VCC = 5.5V, VIL = 0.4V −0.5 mA IO (Note 3) Output Drive Current VCC = 5.5V, VO = 2.25V −30 −112 mA IOZH OFF-State Output Current, VCC = 5.5V, VIH = 2V, 50 µA HIGH Level Voltage Applied VO = 2.7V, IOZL OFF-State Output Current, VCC = 5.5V, VIH = 2V, −50 µA LOW Level Voltage Applied VO = 0.4V ICC Supply Current VCC = 5.5V Outputs HIGH 82 133 Outputs OPEN Outputs LOW 92 149 mA Outputs Disabled 100 160 |
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