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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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DM74LS190M 데이터시트(PDF) 2 Page - National Semiconductor (TI) |
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DM74LS190M 데이터시트(HTML) 2 Page - National Semiconductor (TI) |
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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 7V Operating Free Air Temperature Range DM54LS 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 DM54LS190 LS191 DM74LS190 LS191 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 04 b 04 mA IOL Low Level Output Current 4 8 mA fCLK Clock Frequency (Note 4) 0 20 0 20 MHz tW Pulse Width Clock 25 25 ns (Note 4) Load 35 35 tSU Data Setup Time (Note 4) 20 20 ns tH Data Hold Time (Note 4) 0 0 ns tEN Enable Time to Clock (Note 4) 30 30 ns TA Free Air Operating Temperature b 55 125 0 70 C ’LS190 and ’LS191 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 eb 18 mA b 15 V VOH High Level Output VCC e Min IOH e Max DM54 25 34 Voltage VIL e Max VIH e Min DM74 27 34 V VOL Low Level Output VCC e Min IOL e Max DM54 025 04 Voltage VIL e Max VIH e Min DM74 035 05 V IOL e 4 mA VCC e Min DM74 025 04 II Input Current Max VCC e Max Enable 03 mA Input Voltage VI e 7V Others 01 IIH High Level Input VCC e Max Enable 60 m A Current VI e 27V Others 20 IIL Low Level Input VCC e Max Enable b 108 mA Current VI e 04V Others b 04 IOS Short Circuit VCC e Max DM54 b 20 b 100 mA Output Current (Note 2) DM74 b 20 b 100 ICC Supply Current VCC e Max (Note 3) 20 35 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 inputs grounded and all outputs open Note 4 TA e 25 C and VCC e 5V 2 |
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