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7420 Datasheet

April 8th, 2010

7420 / 74LS20 : Dual 4-Input NAND Gate

7420 General Description:

This device contains two independent gates each of which performs the logic NAND function.

7420 Absolute Max Ratings:

Supply Voltage:  7V
Input Voltage:  7V
Operating Free Air Temperature Range: 0°C to +70°C
Storage Temperature Range:  -65°C to +150°C

7420 pin assignment:

7420 pin assignment

7420 pin assignment

7420 truth table function:

7420 table fuction

7420 table fuction

Download 74LS20 Datasheet pdf.

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LM7812 Datasheet

January 12th, 2010

7812 General Description :

The LM7812 of three terminal positive regulators are available in the TO-220 package and with several fixed output voltages, making them useful in a wide range of applications. Each type employs internal current limiting, thermal shut down and safe operating area protection, making it essentially indestructible. If adequate heat sinking is provided, they can deliver over 1A output current. Although designed primarily as fixed voltage regulators, these devices can be used with external components to obtain adjustable voltages and currents.

LM7812 Features :

  • Output Current up to 1A
  • Output Voltages of 12 volt
  • Thermal Overload Protection
  • Short Circuit Protection
  • Output Transistor Safe Operating Area Protection » Read more: LM7812 Datasheet

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LM7810 Datasheet

January 12th, 2010

7810 General Description :

The LM7810 of three terminal positive regulators are available in the TO-220 package and with several fixed output voltages, making them useful in a wide range of applications. Each type employs internal current limiting, thermal shut down and safe operating area protection, making it essentially indestructible. If adequate heat sinking is provided, they can deliver over 1A output current. Although designed primarily as fixed voltage regulators, these devices can be used with external components to obtain adjustable voltages and currents.

LM7810 Features :

  • Output Current up to 1A
  • Output Voltages of 10 volt
  • Thermal Overload Protection
  • Short Circuit Protection
  • Output Transistor Safe Operating Area Protection » Read more: LM7810 Datasheet

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