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DM74S258 bảng dữ liệu(PDF) 2 Page - National Semiconductor (TI) |
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DM74S258 bảng dữ liệu(HTML) 2 Page - National Semiconductor (TI) |
2 / 8 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 55V Operating Free Air Temperature Range DM54S b 55 Cto a125 C DM74S 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 DM54S257 DM74S257 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 08 08 V IOH High Level Output Current b 2 b 65 mA IOL Low Level Output Current 20 20 mA TA Free Air Operating Temperature b 55 125 0 70 C ’S257 Electrical Characteristics over recommended operating free air temperature (unless otherwise noted) Symbol Parameter Conditions Min Typ Max Units (Note 1) VI Input Clamp Voltage VCC e Min II eb18 mA b 12 V VOH High Level Output VCC e Min IOH e Max DM54 24 34 V Voltage VIL e Max VIH e Min DM74 24 32 VOL Low Level Output VCC e Min IOL e Max 05 V Voltage VIH e Min VIL e Max II Input Current Max VCC e Max VI e 55V 1mA Input Voltage IIH High Level Input VCC e Max Select 100 m A Current VI e 27V Other 50 IIL Low Level Input VCC e Max Select b 4 mA Current VI e 05V Other b 2 IOZH Off-State Output Current VCC e Max VO e 24V with High Level Output VIH e Min VIL e Max 50 m A Voltage Applied IOZL Off-State Output Current with VCC e Max VO e 05V Low Level Output VIH e Min VIL e Max b 50 m A Voltage Applied IOS Short Circuit VCC e Max DM54 b 40 b 100 mA Output Current (Note 2) DM74 b 40 b 100 ICCH Supply Current with Outputs High VCC e Max (Note 3) 44 68 mA ICCL Supply Current with Outputs Low VCC e Max (Note 3) 60 93 mA ICCZ Supply Current with Outputs Disabled VCC e Max (Note 3) 64 99 mA 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 and the duration should not exceed one second Note 3 ICC is measured with all outputs open and all possible inputs grounded while achieving the stated output conditions 2 |
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