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DM74LS245SJ Scheda tecnica(PDF) 2 Page - Fairchild Semiconductor |
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DM74LS245SJ Scheda tecnica(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 (unless otherwise noted) Note 2: All typicals are at VCC = 5V, TA = 25°C. Note 3: Not more than one output should be shorted at a time, not to exceed one second duration Supply Voltage 7V Input Voltage DIR or G 7V A or B 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 −15 mA IOL LOW Level Output Current 24 mA TA Free Air Operating Temperature 0 70 °C Symbol Parameter Conditions Min Typ Max Units (Note 2) VI Input Clamp Voltage VCC = Min, II = −18 mA −1.5 V HYS Hysteresis (VT+ − VT−)VCC = Min 0.2 0.4 V VOH HIGH Level VCC = Min, VIH = Min 2.7 Output Voltage VIL = Max, IOH = −1 mA VCC = Min, VIL = Min 2.4 3.4 V VIL = Max, IOH = −3 mA VCC = Min, VIH = Min 2 VIL = 0.5V, IOH = Max VOL LOW Level VCC = Min IOL = 12 mA 0.4 Output Voltage VIL = Max IOL = Max 0.5 V VIH = Min IOZH Off-State Output Current, VCC = Max VO = 2.7V 20 µA HIGH Level Voltage Applied VIL = Max IOZL Off-State Output Current, VIH = Min VO = 0.4V −200 µA LOW Level Voltage Applied II Input Current at Maximum VCC = Max A or B VI = 5.5V 0.1 mA Input Voltage DIR or G VI = 7V 0.1 IIH HIGH Level Input Current VCC = Max, VI = 2.7V 20 µA IIL LOW Level Input Current VCC = Max, VI = 0.4V −0.2 mA IOS Short Circuit Output Current VCC = Max (Note 3) −40 −225 mA ICC Supply Current Outputs HIGH VCC = Max 48 70 Outputs LOW 62 90 mA Outputs at Hi-Z 64 95 |
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