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DM74LS491J датащи(PDF) 2 Page - National Semiconductor (TI) |
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DM74LS491J датащи(HTML) 2 Page - National Semiconductor (TI) |
2 / 4 page Absolute Maximum Ratings If MilitaryAerospace specified devices are required please contact the National Semiconductor Sales OfficeDistributors for availability and specifications Supply Voltage VCC 7V Input Voltage 55V Off-State Output Voltage 55V Storage Temperature b 65 to a150 C Operating Conditions Symbol Parameter Military Commercial Units Min Typ Max Min Typ Max VCC Supply Voltage 45 5 55 475 5 525 V TA Operating Free-Air Temperature b 55 125 075 C tw Width of Clock High 40 40 ns Low 35 35 tSU Set-Up Time 60 50 ns th Hold Time 0 b 15 0 b 15 Case temperature Electrical Characteristics Over Operating Conditions Symbol Parameter Test Conditions Min Typ Max Units VIL Low-Level Input Voltage 08 V VIH High-Level Input Voltage 2 V VIC Input Clamp Voltage VCCeMIN IIeb18 mA b 15 V IIL Low-Level Input Current VCCeMAX VIe04V b 025 mA IIH High-Level Input Current VCCeMAX VIe24V 25 m A II Maximum Input Current VCCeMAX VIe55V 1 mA VCCeMIN MIL IOLe12 mA VOL Low-Level Output Voltage VILe08V 05 V VIHe2V COM IOLe24 mA VCCeMIN MIL IOHeb2mA VOH High-Level Output Voltage VILe08V 24 V VIHe2V COM IOHe32 mA IOZL Off-State Output Current VCCeMAX VOe04V b 100 m A VILe08V IOZH VIHe2V VOe24V 100 m A IOS Output Short-Circuit Current VCCe50V VOe0V b 30 b 130 mA ICC Supply Current VCCeMAX 120 180 mA No more than one output should be shorted at a time and duration of the short-circuit should not exceed one second All typical values are at VCCe5V TAe25 C Switching Characteristics Over Operating Conditions Symbol Parameter Test Conditions Military Commercial Units (See Test Load) Min Typ Max Min Typ Max fMAX Maximum Clock Frequency CLe50 pF 105 125 MHz tPD Clock to Q R1e200X 20 35 20 30 ns tPZX Output Enable Delay R2e390X 35 55 35 45 ns tPXZ Output Disable Delay 35 55 35 45 ns 2 |
Аналогичный номер детали - DM74LS491J |
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Аналогичное описание - DM74LS491J |
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