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DM74ALS520 Datasheet(PDF) 3 Page - Fairchild Semiconductor |
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DM74ALS520 Datasheet(HTML) 3 Page - Fairchild Semiconductor |
3 / 5 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 Electrical Characteristics over recommended operating free air temperature range. All typical values are measured at VCC = 5V, TA = 25°C. Note 2: ICC is measured with EN grounded, A and B inputs at 4.5V and outputs OPEN. 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 62.0 °C/W M Package 82.0 °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 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 to 5.5V VCC − 2V Output Voltage IOH = −400 µA VCC = 4.5V 2.4 3.2 V IOH = Max VOL LOW Level Output Voltage VCC = 4.5V IOL = 24 mA 0.35 0.5 V II Max HIGH VCC = 5.5V VIH = 5.5V Input Current B Input DM74ALS520 0.1 mA VIH = 7V, All Others IIH HIGH Level VCC = 5.5V, All Others 20 µA Input Current VIH = 2.7V B Input DM74ALS520 −200 IIL Low Level Input VCC = 5.5V, B Input DM74ALS520 −0.6 mA Current VIL = 0.4V All Others −0.1 mA IO Output Drive Current VCC = 5.5V VO = 2.25V −30 −112 mA ICC Supply Current VCC = 5.5V (Note 2) 12 19 mA Symbol Parameter Conditions From To Min Max Units Input Output tPLH Propagation Delay Time VCC = 4.5V to 5.5V A or B A = B 312 ns LOW-to-HIGH Level Output CL = 50 pF Data tPHL Propagation Delay Time RL = 500Ω A or B A = B 520 ns HIGH-to-LOW Level Output Data tPLH Propagation Delay Time EN A = B 212 ns LOW-to-HIGH Level Output tPHL Propagation Delay Time EN A = B 522 ns HIGH-to-LOW Level Output |
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