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54LS245 Fiches technique(PDF) 2 Page - National Semiconductor (TI) |
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54LS245 Fiches technique(HTML) 2 Page - National Semiconductor (TI) |
2 / 6 page Absolute Maximum Ratings (Note) If MilitaryAerospace specified devices are required please contact the National Semiconductor Sales OfficeDistributors for availability and specifications Supply Voltage 7V Input Voltage DIR or G 7V A or B 55V Operating Free Air Temperature Range DM54LS and 54LS b 55 Cto a125 C DM74LS 0 Cto a70 C Storage Temperature Range b 65 Cto a150 C Note The ‘‘Absolute Maximum Ratings’’ are those values beyond which the safety of the device cannot be guaran- teed The device should not be operated at these limits The parametric values defined in the ‘‘Electrical Characteristics’’ table are not guaranteed at the absolute maximum ratings The ‘‘Recommended Operating Conditions’’ table will define the conditions for actual device operation Recommended Operating Conditions Symbol Parameter DM54LS245 DM74LS245 Units Min Nom Max Min Nom Max VCC Supply Voltage 45 5 55 475 5 525 V VIH High Level Input Voltage 2 2 V VIL Low Level Input Voltage 07 08 V IOH High Level Output Current b 12 b 15 mA IOL Low Level Output Current 12 24 mA TA Free Air Operating Temperature b 55 125 0 70 C Electrical Characteristics over recommended operating free air temperature range (unless otherwise noted) Symbol Parameter Conditions Min Typ Max Units (Note 1) VI Input Clamp Voltage VCC e Min II eb18 mA b 15 V HYS Hysteresis (VTa b VTb)VCC e Min 02 04 V VOH High Level Output Voltage VCC e Min VIH e Min DM74 27 VIL e Max IOH eb1mA VCC e Min VIL e Min DM54DM74 24 34 V VIL e Max IOH eb3mA VCC e Min VIH e Min DM54DM74 2 VIL e 05V IOH e Max VOL Low Level Output Voltage VCC e Min IOL e 12 mA DM74 04 VIL e Max IOL e Max DM54 04 V VIH e Min DM74 05 IOZH Off-State Output Current VCC e Max VO e 27V 20 m A High Level Voltage Applied VIL e Max IOZL Off-State Output Current VIH e Min VO e 04V b 200 m A Low Level Voltage Applied II Input Current at Maximum VCC e Max AorB VI e 55V 01 mA Input Voltage DIR or G VI e 7V 01 IIH High Level Input Current VCC e Max VI e 27V 20 m A IIL Low Level Input Current VCC e Max VI e 04V b 02 mA IOS Short Circuit Output Current VCC e Max (Note 2) b 40 b 225 mA ICC Supply Current Outputs High VCC e Max 48 70 Outputs Low 62 90 mA Outputs at Hi-Z 64 95 Note 1 All typicals are at VCC e 5V TA e 25 C Note 2 Not more than one output should be shorted at a time not to exceed one second duration 2 |
Numéro de pièce similaire - 54LS245 |
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Description similaire - 54LS245 |
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