74HCT4002D,112

Current - Output High, Low:	4mA, 4mA
Base Part Number:	74HCT4002
Package / Case:	14-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	14-SO
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Max Propagation Delay @ V, Max CL:	22ns @ 4.5V, 50pF
Logic Level - High:	2V
Logic Level - Low:	0.8V
Series:	74HCT
Current - Quiescent (Max):	2µA
Voltage - Supply:	4.5 V ~ 5.5 V
Features:	--
Number of Inputs:	4
Number of Circuits:	2
Logic Type:	NOR Gate
Part Status:	Active
Packaging:	Tube

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Introduction

The 74HCT4002D is a type of logic gate and inverter integrated circuit (IC) manufactured by Texas Instruments. It is an HCT version of the 74S00 logic family and generic logic gates, offering improved electrical characteristics over the 74S00 family. The HCT technology provides a standard logic family with significantly improved high-level Noise Margin and low power dissipation over the older TTL technology.This HCT technology was especially designed to operate in a broad range of environmental conditions. The 74HCT4002D is designed primarily to be used in a wide variety of applications, and although this device is best suited for high-speed logic signal processing and signal input/output, it can also be used in signal conditioning, signal multiplexing and decoding, memory, storage/addressing and arithmetic logic.

Logic - Gates and Inverters

The 74HCT4002D is an integrated circuit which contains two separately operating and interconnected four-input NAND gates, which act as inverters. NAND gates are logical elements that generate an output if any one or all of its inputs are false. The 74HCT4002D\'s NAND gates are designed to operate in single-ended mode and can be used to interface with and control lower-voltage digital logic signals or in the generation and control of higher voltage signals.Regarding the logic component, the 74HCT4002D\'s NAND gates have four inputs and one inverted output. In NAND gate logic, a voltage input to an input terminal is considered a logical "0", while no voltage input to an input terminal is considered a logical "1". The inverted output of the 74HCT4002D\'s NAND gates is generated from the logical combination of the four input signals, following the NAND Gate logic rules. In this component, the output is generated as the inverse logic value of the combination of all the four inputs.

Application Field

The 74HCT4002D is designed to be used in a wide variety of applications. It is particularly suitable for high-speed logic signal processing, such as in digital signal processing applications, and in digital/analog conversion applications.The component offers excellent input/output characteristics and can be used to interface with lower-voltage CMOS logic, TTL logic or to control higher voltage signals. It is also used in data bus and communication interface circuits, memory storage/addressing and arithmetic logic circuits. Some of its key applications include digital temperature sensors and converters, motion-controller systems, data acquisition systems, digital telephone systems and power supplies.

Working Principle

The 74HCT4002D is a type of NAND gate logic, which combines four logic inputs and produces one logic output in the form of an inverted signal. It follows the logic according to the rules of NAND gate logic, which states that the output is generated as the inverse logic value of the combination of all the four inputs.The component is designed to have excellent input/output characteristics, and it can handle both low-voltage CMOS logic signals and high-voltage signals. The component has a Vh (high) and VL (low) ratings which define its maximum and minimum allowed voltage ranges. If a voltage outside this range is applied, the component may be damaged or its performance could be affected. When the component is correctly used within its specified voltage range, it offers improved electrical characteristics, like improved high-level Noise Margin and low power dissipation, over the older TTL technology.

Conclusion

The 74HCT4002D is a logic gate and inverter component designed by Texas Instruments to be used in a wide variety of applications, offering improved electrical characteristics over the older TTL technology. It is an HCT version of the 74S00 logic family and generic logic gates, and it is designed for single-ended operation.The component combines four logic inputs, producing one logic output in the form of an inverted signal. It follows the logic rules of NAND gate logic, and it is designed to handle both low-voltage CMOS logic signals and high-voltage signals. As such, the component is suitable for applications such as digital signal processing and digital/analog conversion, data bus and communication, memory storage/addressing, and arithmetic logic circuits.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description