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DM74LS375 数据表(PDF) 2 Page - National Semiconductor (TI) |
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DM74LS375 数据表(HTML) 2 Page - National Semiconductor (TI) |
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2 / 6 page ![]() Absolute Maximum Ratings (Note) Supply Voltage 7V Input Voltage 7V Operating Free Air Temperature Range 0 Cto a70 C Storage Temperature Range b 65 Cto a150 C Note The ‘‘Absolute Maximum Ratings are those values beyond which the safety of the device cannot be guaran- teed The device should not be operated at these limits The parametric values defined in the ‘‘Electrical Characteristics’’ table are not guaranteed at the absolute maximum ratings The ‘‘Recommended Operating Conditions’’ table will define the conditions for actual device operation Recommended Operating Conditions Symbol Parameter Min Nom Max Units VCC Supply Voltage 475 5 525 V VIH High Level Input Voltage 2 V VIL Low Level Input Voltage 08 V IOH High Level Output Current b 04 mA IOL Low Level Output Current 8 mA TA Free Air Operating Temperature 0 70 C ts (H) Setup Time HIGH or LOW 20 ns ts (L) Dn to En th (H) Hold Time HIGH or LOW 0ns th (L) Dn to En tw (H) En Pulse Width HIGH 20 ns Electrical Characteristics Over recommended operating free air temperature range (unless otherwise noted) Symbol Parameter Conditions Min Typ Max Units (Note 1) VI Input Clamp Voltage VCC e Min II eb18 mA b 15 V VOH High Level Output VCC e Min IOH e Max 27 34 V Voltage VIL e Max VOL Low Level Output VCC e Min IOL e Max 035 05 Voltage VIH e Min V IOL e 4 mA VCC e Min 025 04 II Input Current Max VCC e Max VI e 7V Others 01 mA Input Voltage Enable Input 04 mA IIH High Level Input Current VCC e Max VI e 27V Others 20 m A Enable Input 80 m A IIL Low Level Input Current VCC e Max VI e 04V Others b 04 mA Enable Input b 12 mA IOS Short Circuit Output Current VCC e Max (Note 2) b 20 b 100 mA ICC Supply Current VCC e Max 12 mA Note 1 All typicals are at VCC e 5V TA e 25 C Note 2 Not more than one output should be shorted at a time and the duration should not exceed one second 2 |
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