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DM74S74M bảng dữ liệu(PDF) 2 Page - Fairchild Semiconductor |
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DM74S74M bảng dữ liệu(HTML) 2 Page - Fairchild Semiconductor |
2 / 5 page www.fairchildsemi.com 2 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: CL = 15 pF, RL = 280Ω, TA = 25°C and VCC = 5V. Note 3: CL = 50 pF, RL = 280Ω, TA = 25°C and VCC = 5V. Note 4: The symbol ( ↑) indicates the rising edge at the clock pulse is used for reference. Supply Voltage 7V Input Voltage 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 −1mA IOL LOW Level Output Current 20 mA fCLK Clock Frequency (Note 2) 0 110 75 MHz fCLK Clock Frequency (Note 3) 0 95 65 MHz tW Pulse Width Clock HIGH 6 (Note 2) Clock LOW 7.3 ns Clear LOW 7 Preset LOW 7 tW Pulse Width Clock HIGH 8 (Note 3) Clock LOW 9 ns Clear LOW 9 Preset LOW 9 tSU Setup Time (Note 2)(Note 4) 3 ↑ ns tSU Setup Time (Note 3)(Note 4) 3 ↑ ns tH Input Hold Time (Note 2)(Note 4) 2 ↑ ns tH Input Hold Time (Note 3)(Note 4) 2 ↑ ns TA Free Air Operating Temperature 0 70 °C |
Số phần tương tự - DM74S74M |
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Mô tả tương tự - DM74S74M |
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