전자부품 데이터시트 검색엔진 |
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DM74LS390M 데이터시트(PDF) 3 Page - Fairchild Semiconductor |
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DM74LS390M 데이터시트(HTML) 3 Page - Fairchild Semiconductor |
3 / 6 page 3 www.fairchildsemi.com Absolute Maximum Ratings(Note 3) Note 3: 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 4: CL = 15 pF, RL = 2 kΩ, TA = 25°C and VCC = 5V. Note 5: CL = 50 pF, RL = 2 kΩ, TA = 25°C and VCC = 5V. Note 6: The symbol ( ↓) indicates the falling edge of the clear pulse is used for reference. Note 7: TA = 25°C and VCC = 5V. Electrical Characteristics over recommended operating free air temperature range (unless otherwise noted) Note 8: All typicals are at VCC = 5V, TA = 25°C. Note 9: Not more than one output should be shorted at a time, and the duration should not exceed one second. Note 10: ICC is measured with all outputs OPEN, both CLEAR inputs grounded following momentary connection to 4.5 and all other inputs grounded. Supply Voltage 7V Input Voltage Clear 7V A or B 5.5V Operating Free Air Temperature Range 0 °C to +70°C Storage Temperature Range −65°C to +150°C Symbol Parameter Min Nom Max Units VCC Supply Voltage 4.75 5 5.25 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 (Note 4) A to QA 025 MHz B to QB 020 fCLK Clock Frequency (Note 5) A to QA 020 MHz B to QB 015 tW Pulse Width (Note 4) A 20 B25 ns Clear HIGH 20 tREL Clear Release Time (Note 6)(Note 7) 25 ↓ ns TA Free Air Operating Temperature 0 70 °C Symbol Parameter Conditions Min Typ Max Units (Note 8) VI Input Clamp Voltage VCC = Min, II = −18 mA −1.5 V VOH HIGH Level VCC = Min, IOH = Max 2.7 3.4 V Output Voltage VIL = Max, VIH = Min VOL LOW Level VCC = Min, IOL = Max 0.35 0.5 Output Voltage VIL = Max, VIH = Min V IOL = 4 mA, VCC = Min 0.25 0.4 II Input Current @ Max VCC = Max, VI = 7V Clear 0.1 Input Voltage VCC = Max A 0.2 mA VI = 5.5V B 0.4 IIH HIGH Level VCC = Max Clear 20 Input Current VI = 2.7V A 40 µA B80 IIL LOW Level VCC = Max, VI = 0.4V Clear −0.4 Input Current A −1.6 mA B −2.4 IOS Short Circuit Output Current VCC = Max (Note 9) −20 −100 mA ICC Supply Current VCC = Max (Note 10) 15 26 mA |
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