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DM74LS323 bảng dữ liệu(PDF) 2 Page - National Semiconductor (TI) |
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DM74LS323 bảng dữ liệu(HTML) 2 Page - National Semiconductor (TI) |
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2 / 8 page ![]() Absolute Maximum Ratings (Note) If MilitaryAerospace specified devices are required please contact the National Semiconductor Sales OfficeDistributors for availability and specifications Supply Voltage 7V Input Voltage 7V Operating Free Air Temperature Range DM54LS b 55 Cto a125 C DM74LS 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 DM54LS323 DM74LS323 Units Min Nom Max Min Nom Max VCC Supply Voltage 45 5 55 475 5 525 V VIH High Level Input Voltage 2 2 V VIL Low Level Input Voltage 07 08 V IOH High Level Output Current b 04 b 04 mA IOL Low Level Output Current 4 8 mA TA Free Air Operating Temperature b 55 125 0 70 C ts (H) Setup Time HIGH or LOW 24 24 ns ts (L) S0 or S1 to CP 24 24 th (H) Hold Time HIGH or LOW 5 0 ns th (L) S0 or S1 to CP 5 0 ts (H) Setup Time HIGH or LOW 15 10 ns ts (L) IOn DS0 DS7toCP 15 10 th (H) Hold Time HIGH or LOW 5 0 ns th (L) IOn DS0 DS7toCP 5 0 ts (H) Setup Time HIGH or LOW 30 15 ns ts (L) SR to CP 20 15 th (H) Hold Time HIGH or LOW 0 0 ns th (L) SR to CP 0 0 tw (H) CP Pulse Width HIGH or LOW 15 15 ns tw (L) 15 15 2 |
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