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DM74ALS273SJ bảng dữ liệu(PDF) 3 Page - Fairchild Semiconductor |
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DM74ALS273SJ bảng dữ liệu(HTML) 3 Page - Fairchild Semiconductor |
3 / 7 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 Note 2: The ( ↑) arrow indicates the positive edge of the Clock is used for reference. Electrical Characteristics over recommended operating free air temperature range. All typical values are measured at VCC = 5V, TA = 25°C. Switching Characteristics over recommended operating free air temperature range. Supply Voltage 7V Input Voltage 7V Operating Free Air Temperature Range 0 °C to +70°C Storage Temperature Range −65°C to +150°C Typical θ JA N Package 60.0 °C/W M Package 79.0 °C/W Symbol Parameter Min Nom Max Units VCC Supply Voltage 4.5 5 5.5 V VIH HIGH Level Input Voltage 2 V VIL LOW Level Input Voltage 0.8 V IOH HIGH Level Output Current −2.6 mA IOL LOW Level Output Current 24 mA fCLK Clock Frequency 0 35 MHz tW(CLK) Width of Clock Pulse HIGH 14 ns LOW 14 ns tW Width of Clear Pulse LOW 10 ns tSU Data Setup Time (Note 2) 10 ↑ ns Clear Inactive 15 ↑ tH Data Hold Time 0 ↑ ns TA Free Air Operating Temperature 0 70 °C Symbol Parameter Conditions Min Typ Max Units VIK Input Clamp Voltage VCC = 4.5V, II = −18 mA −1.5 V VOH HIGH Level VCC = 4.5V IOH = −2.6 mA 2.4 3.3 V Output Voltage VCC = 4.5V to 5.5V IOH = −400 µAVCC − 2V VOL LOW Level VCC = 4.5V IOL = 12 mA 0.25 0.4 V Output Voltage IOL = 24 mA 0.35 0.5 V II Input Current @ Maximum Input Voltage VCC = 5.5V, VIH = 7V 0.1 mA IIH HIGH Level Input Current VCC = 5.5V, VIH = 2.7V 20 µA IIL LOW Level Input Current VCC = 5.5V, VIL = 0.4V −0.2 mA IO Output Drive Current VCC = 5.5V VO = 2.25V −30 −112 mA ICC Supply Current VCC = 5.5V Outputs HIGH 11 20 mA Outputs OPEN Outputs LOW 19 29 mA Symbol Parameter Conditions From To Min Max Units fMAX Maximum Clock Frequency VCC = 4.5V to 5.5V 35 MHz tPHL Propagation Delay Time RL = 500Ω Clear Any Q 4 18 ns HIGH-to-LOW Level Output CL = 50 pF tPLH Propagation Delay Time Clock Any Q 2 12 ns LOW-to-HIGH Level Output tPHL Propagation Delay Time Clock Any Q 3 15 ns HIGH-to-LOW Level Output |
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