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DM74ALS245AMSA Datasheet(PDF) 2 Page - Fairchild Semiconductor |
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DM74ALS245AMSA Datasheet(HTML) 2 Page - Fairchild Semiconductor |
2 / 6 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 Electrical Characteristics over recommended operating free air temperature range. All typical values are measured at VCC = 5V, TA = 25°C. Switching Characteristics (Note 2) over recommended operating free air temperature range Note 2: Switching characteristic conditions are VCC = 4.5V to 5.5V, RL = 500Ω, CL = 50 pF. Supply Voltage 7V Input Voltage Control Inputs 7V I/O Ports 5.5V Operating Free Air Temperature Range 0 °C to +70°C Storage Temperature Range −65°C to +150°C Typical θ JA N Package 53.0 °C/W M Package 72.0 °C/W Symbol Parameter Min Typ 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 −15 mA IOL LOW Level Output Current 24 mA TA Operating Free Air Temperature 0 70 °C Symbol Parameter Conditions Min Typ Max Units VIK Input Clamp Voltage VCC = 4.5V, IIN = −18 mA −1.5 V VOH HIGH Level VCC = 4.5V, IOH = −3 mA 2.4 3.2 V Output Voltage VCC = 4.5V, IOH = Max 2 2.3 V IOH = −0.4 mA, VCC = 4.5V to 5.5V VCC − 2V VOL LOW Level Output Voltage VCC = 4.5V IOL = 24 mA 0.35 0.5 V II Input Current at Maximum VCC = 5.5V VIN = 7V Control Inputs 0.1 mA Input Voltage VIN = 5.5V A or B Ports 0.1 IIH HIGH Level Input Current VCC = 5.5V, VIN = 2.7V 20 µA IIL LOW Level Input Current VCC = 5.5V, VIN = 0.4V −0.1 mA IO Output Drive Current VCC = 5.5V, VOUT = 2.25V −30 −112 mA ICC Supply Current VCC = 5.5V Outputs HIGH 30 45 mA Outputs LOW 36 55 mA 3-STATE 38 58 mA Symbol Parameter Circuit Configuration Min Max Units tPLH Propagation Delay Time 310 ns LOW-to-HIGH Level Output tPHL Propagation Delay Time 310 ns HIGH-to-LOW Level Output tPZL Output Enable Time to LOW Level 5 20 ns tPZH Output Enable Time to HIGH Level 5 20 ns tPLZ Output Disable Time from LOW Level 4 15 ns tPHZ Output Disable Time from HIGH Level 2 10 ns |
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