M74HC123TTR

Product Overview

Category

M74HC123TTR belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in digital electronics for various applications such as timing, pulse generation, and synchronization.

Characteristics

• High-speed operation
• Wide operating voltage range
• Low power consumption
• Schmitt trigger inputs for noise immunity
• Monostable multivibrator functionality

Package

M74HC123TTR is available in a small outline package (SOT-23) which provides compactness and ease of integration into electronic circuits.

Essence

The essence of M74HC123TTR lies in its ability to generate precise and stable time intervals, making it suitable for applications requiring accurate timing control.

Packaging/Quantity

This IC is typically packaged in reels or tubes, with each reel containing a specific quantity of chips. The exact packaging and quantity may vary depending on the manufacturer.

Specifications

• Supply Voltage Range: 2V to 6V
• Maximum Operating Frequency: 50MHz
• Output Current: ±5mA
• Input Voltage Range: 0V to Vcc
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

M74HC123TTR has a total of 8 pins, numbered as follows:

1. Clear (CLR)
2. Trigger (TRIG)
3. Threshold (THRES)
4. Control Voltage (CV)
5. Ground (GND)
6. Output (OUT)
7. Discharge (DISCH)
8. Vcc (Supply Voltage)

Functional Features

Monostable Multivibrator

M74HC123TTR operates as a monostable multivibrator, allowing it to generate a single output pulse of a specific duration when triggered by an external signal.

Schmitt Trigger Inputs

The Schmitt trigger inputs of this IC provide excellent noise immunity, ensuring reliable operation even in the presence of electrical noise or signal fluctuations.

Wide Operating Voltage Range

With a supply voltage range of 2V to 6V, M74HC123TTR can be used in various electronic systems powered by different voltage sources.

Advantages and Disadvantages

Advantages

• High-speed operation enables rapid pulse generation.
• Low power consumption makes it suitable for battery-powered devices.
• Schmitt trigger inputs enhance noise immunity.
• Compact SOT-23 package allows for space-efficient integration.

Disadvantages

• Limited maximum operating frequency compared to some other ICs.
• Output current is relatively low, which may restrict certain applications.

Working Principles

M74HC123TTR operates based on the principles of monostable multivibrator circuits. When triggered, it generates a single output pulse with a duration determined by external components connected to the control voltage, threshold, and discharge pins.

Detailed Application Field Plans

M74HC123TTR finds applications in various fields, including:

1. Timing circuits in digital clocks and watches.
2. Pulse width modulation (PWM) control in motor speed regulation.
3. Synchronization of data transmission in communication systems.
4. Delay generation in microcontroller-based systems.
5. Precision timing in scientific instruments.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to M74HC123TTR include:

1. CD74HC123E - Texas Instruments
2. SN74HC123N - Texas Instruments
3. MC74HC123AN - ON Semiconductor
4. 74HC123D - NXP Semiconductors
5. HEF4528BP - Nexperia

These alternatives can be considered based on specific requirements, availability, and compatibility with existing circuit designs.

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