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7402 IC Quad 2-input Positive-NOR gates

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  • Logic Type: NOR
  • Output Current: 5.2mA
  • No. of Inputs per gate: 2
  • Supply Voltage Min: 2V
  • Supply Voltage Max: 6V
  • High-Speed CMOS Type
  • Logic Case Style: DIP
  • No. of Pins: 14
  • Operating Temperature -40 °C  to +85 °C

20.00 16.95+18% GST

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SKU 04BN002 Category

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Description

7402 Quad 2-input NOR gate

The NOR gate is a digital logic gate that implements logical NOR – it behaves according to the truth table to the right. A HIGH output (1) results if both the inputs to the gate are LOW (0); if one or both input is HIGH (1), a LOW output (0) results. NOR is the result of the negation of the OR operator. It can also in some senses be seen as the inverse of an AND gate. NOR is a functionally complete operation—NOR gates can be combined to generate any other logical function. It shares this property with the NAND gate. By contrast, the OR operator is monotonic as it can only change LOW to HIGH but not vice versa. ( Click for wide range of  Logic Gates at solicstores.in).

7402 The 74HC02 is a 14 Pin Quad 2-Input NOR Gate IC. NOR gates utilize advanced silicon-gate CMOS technology to achieve operating speeds similar to LS-TTL gates with the low power consumption of standard CMOS integrated circuits. All gates have buffered outputs, providing high noise immunity and the ability to drive 10 LS-TTL loads. The 74HC logic family is functionally as well as pin-out compatible with the standard 74LS logic family.

All inputs are protected from damage due to static discharge by internal diode clamps to VCC and ground.

The 74HC02 is a quad 2-input NOR gate. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.

The truth table of NOR gate is given as

Input1 Input2 OR Output NOROutput
LOW LOW LOW HIGH
HIGH LOW HIGH LOW
LOW HIGH HIGH LOW
HIGH HIGH HIGH LOW

7402 Pinout Configuration

7402

 

 

 

 

 

 

 

Pin Number Pin Name Description
2,5,8,11 NOR Gate Input pin (A) First Input pin for the NOR gate
3,6,9,12 NOR Gate Input pin (B) Second Input pin for the NOR gate
1,4,10,13 NOR Gate Output pin (Y) Output pin for the NOR gate
7 Ground Connect to the ground of the circuit.
14 Vcc (Vdd) Used to power the IC. Typically +5V is used

Features

  • Logic Type: NOR
  • Output Current: 5.2mA
  • No. of Inputs per gate: 2
  • Supply Voltage Min: 2V
  • Supply Voltage Max: 6V
  • High-Speed CMOS Type
  • Logic Case Style: DIP
  • No. of Pins: 14
  • Operating Temperature -40 °C  to +85 °C

Applications

  • Basic Logic Circuits
  • Digital Circuits
  • Encoders and Decoders
  • Multiplexers and De-multiplexers
  • Oscillator circuits
  • Networking
  • Networking and Digital Systems

Package Includes :

1 x 7402 IC Quad 2-input Positive-NOR gates

Specification

Package/Case PDIP-14
Input levels CMOS level
Operating Voltage Range -0.5V to 7V
DC input current ±20mA
Minimum logic Low voltage @+5V 1.35V
Minimum Logic High voltage @+5V  3.15V
Propagation Delay @5V  28ns (maximum)

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