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54LS194ADMQB Datasheet(PDF) 2 Page - National Semiconductor (TI) |
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54LS194ADMQB Datasheet(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 7V Operating Free Air Temperature Range 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 54LS194A DM74LS194A 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 1) 30 0 0 25 MHz Clock Frequency (Note 2) 22 0 20 tW Pulse Width Clock 17 20 ns (Note 3) Clear 12 20 tSU Setup Time Mode 25 30 ns (Note 3) Data 16 20 tH Hold Time (Note 3) 0 0 ns tREL Clear Release Time (Note 3) 18 25 ns TA Free Air Operating Temperature b 55 125 0 70 C Note 1 CL e 15 pF TA e 25 C and VCC e 5V Note 2 CL e 50 pF RL e 2kX TA e 25 C and VCC e 5V Note 3 TA e 25 C and VCC e 5V Electrical Characteristics over recommended operating free air temperature range (unless otherwise noted) Symbol Parameter Conditions Min Typ Max Units (Note 4) VI Input Clamp Voltage VCC e Min II eb18 mA b 15 V VOH High Level Output VCC e Min IOH e Max 54LS 25 V Voltage VIL e Max VIH e Min DM74 27 34 VOL Low Level Output VCC e Min IOL e Max 54LS 04 Voltage VIL e Max VIH e Min DM74 035 05 V IOL e 4 mA VCC e Min 04 II Input Current Max VCC e Max VI e 7V 01 mA Input Voltage 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 04 mA IOS Short Circuit VCC e Max 54LS b 20 b 100 mA Output Current (Note 5) DM74 b 20 b 100 ICC Supply Current VCC e Max (Note 6) 15 23 mA Note 4 All typicals are at VCC e 5V TA e 25 C Note 5 Not more than one output should be shorted at a time and the duration should not exceed one second Note 6 With all outputs open inputs A through D grounded and 45V applied to S0 S1 CLEAR and the serial inputs ICC is tested with momentary ground then 45V applied to CLOCK 2 |
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