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DM74LS299 数据表(PDF) 3 Page - Fairchild Semiconductor |
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DM74LS299 数据表(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 Supply Voltage 7V Input Voltage 7V 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 Q0, Q7 −0.4 mA I/O0–I/O7 −2.6 mA IOL LOW Level Output Current Q0, Q7 8 mA I/O0–I/O7 24 mA TA Free Air Operating Temperature 0 70 °C tS(H) Setup Time HIGH or LOW 24 ns tS(L) S0 or S1 to CP 24 tH(H) Hold Time HIGH or LOW 0 ns tH(L) S0 or S1 to CP 0 tS(H) Setup Time HIGH or LOW 10 ns tS(L) I/On, DS0, DS7 to CP 10 tH(H) Hold Time HIGH or LOW 0 ns tH(L) I/On, DS0, DS7 to CP 0 tW(H) CP Pulse Width HIGH or LOW 15 ns tW(L) 15 tW(L) MR Pulse Width LOW 15 ns tREC Recovery Time 10 ns MR to CP |
类似零件编号 - DM74LS299 |
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类似说明 - DM74LS299 |
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