7402 Quad 2-input NOR Gate

The 74LS02 provides high-speed performance and is used in a variety of digital logic circuits where NOR gates are needed. Its low power consumption and fast switching make it suitable for many digital applications.

  1. IC Name: 74LS02
  2. Package/Case: DIP-14

EGP14.00

In stock

SKU: 74LS02 Categories: ,
Estimated delivery dates: 22-12-2024 - 25-12-2024

7402 – 7402 Quad 2-Input NOR Gate Datasheet

Features
  1. Four Independent 2-Input NOR Gates
  2. Outputs Directly Interface to CMOS, NMOS and TTL
  3. Large Operating Voltage Range
  4. Wide Operating Conditions

Pin Layout

TTL 7402 Pin Layout

Pin Description

Pin Number Description
1 Y Output Gate 1
2 A Input Gate 1
3 B Input Gate 1
4 Y Output Gate 2
5 A Input Gate 2
6 B Input Gate 2
7 Ground
8 A Input Gate 3
9 B Input Gate 3
10 Y Output Gate 3
11 A Input Gate 4
12 B Input Gate 4
13 Y Output Gate 4
14 Vcc – Positive Supply

Dimensional Drawing

DIP14 IC Dimensional Drawing
 

Technical Data

Absolute Maximum Ratings

Supply Voltage

7V

Input Voltage

5.5V

Operating Free Air Temperature

0°C to +70°C

Storage Temperature Range

-65°C to +150°C

Recommended Operating Conditions

Symbol Parameter Min Typ Max Units
Vcc Supply Voltage 4.75 5 5.25 V
Vih HIGH Level Input Voltage 2     V
Vil LOW Level Input Voltage     0.8 V
Ioh HIGH Level Output Current     -0.4 mA
Iol LOW Level Output Current     16 mA
Ta Free Air Operating Temperature 0   70 °C

Electrical Characteristics

Symbol Parameter Conditions Min Typ Max Units
Vi Input Clamp Voltage Vcc=Min Ii=-12mA     -1.5 V
Voh HIGH Level Output Voltage Vcc=Min Ioh=MAX Vil=MAX 2.4 3.4   V
Vol LOW Level Output Voltage Vcc=Min Iol=MAX Vih=MAX   0.2 0.4 V
Ii Input Current@MAX Input Voltage Vcc=Max Vi=5.5V     1 mA
Iih HIGH Level Input Current Vcc=Max Vi=2.4V     40 µA
Iil LOW Level Input Current Vcc=Max Vi=0.4V     -1.6 mA
Ios Short Circuit Output Current Vcc=Max -18   -55 mA
Icch Supply Current with Outputs HIGH Vcc=Max   4 8 mA
Iccl Supply Current with Outputs LOW Vcc=Max   12 22 mA

Switching Characteristics at Vcc=5V,Ta=25°C

Symbol Parameter Conditions Min Typ Max Units
tplh Propagation Delay Time LOW-to-HIGH Level Output Cl=15pF Rl=400R     22 nS
tphl Propagation Delay Time HIGH-to-LOW Level Output Cl=15pF Rl=400R     15 nS

Pin Layout

TTL 7402 Pin Layout
Pin Number Description
1 Y Output Gate 1
2 A Input Gate 1
3 B Input Gate 1
4 Y Output Gate 2
5 A Input Gate 2
6 B Input Gate 2
7 Ground
8 A Input Gate 3
9 B Input Gate 3
10 Y Output Gate 3
11 A Input Gate 4
12 B Input Gate 4
13 Y Output Gate 4
14 Vcc – Positive Supply

Technical Data

Absolute Maximum Ratings

Supply Voltage 7V
Input Voltage 5.5V
Operating Free Air Temperature 0°C to +70°C
Storage Temperature Range -65°C to +150°C

 

Recommended Operating Conditions

Symbol Parameter Min Typ Max Units
Vcc Supply Voltage 4.75 5 5.25 V
Vih HIGH Level Input Voltage 2 V
Vil LOW Level Input Voltage 0.8 V
Ioh HIGH Level Output Current -0.4 mA
Iol LOW Level Output Current 16 mA
Ta Free Air Operating Temperature 0 70 °C

 

Electrical Characteristics

Symbol Parameter Conditions Min Typ Max Units
Vi Input Clamp Voltage Vcc=Min Ii=-12mA -1.5 V
Voh HIGH Level Output Voltage Vcc=Min Ioh=MAX Vil=MAX 2.4 3.4 V
Vol LOW Level Output Voltage Vcc=Min Iol=MAX Vih=MAX 0.2 0.4 V
Ii Input Current@MAX Input Voltage Vcc=Max Vi=5.5V 1 mA
Iih HIGH Level Input Current Vcc=Max Vi=2.4V 40 µA
Iil LOW Level Input Current Vcc=Max Vi=0.4V -1.6 mA
Ios Short Circuit Output Current Vcc=Max -18 -55 mA
Icch Supply Current with Outputs HIGH Vcc=Max 4 8 mA
Iccl Supply Current with Outputs LOW Vcc=Max 12 22 mA

 

Switching Characteristics at Vcc=5V,Ta=25°C

Symbol Parameter Conditions Min Typ Max Units
tplh Propagation Delay Time LOW-to-HIGH Level Output Cl=15pF Rl=400R 22 nS
tphl Propagation Delay Time HIGH-to-LOW Level Output Cl=15pF Rl=400R 15 nS

Dimensional Drawing

DIP14 IC Dimensional Drawing

Datasheet

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Specification

Supply Voltage

7V

Input Voltage

5.5V

Operating Free Air Temperature

0°C to +70°C

Storage Temperature Range

-65°C to +150°C

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