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SN74LS123DR
SN74LS123DR
SN74LS123DR
SN74LS123DR
3d-img SN74LS123DR Image

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SN74LS123DR

In Stock: 3,404

Dual retriggerable monostable multivibrators

SN74LS123DR Information

Description

The SN74LS123DR is a dual retriggerable monostable multivibrator integrated circuit from Texas Instruments (TI). It's a versatile component used in various timing and pulse generation applications, such as waveform generation, pulse shaping, debounce circuits, and precision timing in digital systems. This IC features two independent monostable multivibrators that can be triggered by active-high or active-low logic inputs. The output pulses are retriggerable, allowing for very long pulse durations up to 100% duty cycle. Additionally, an overriding clear function is available to terminate the output pulse. The SN74LS123DR is packaged in a narrow 16-pin SOIC package and operates over a wide temperature range of -40°C to 85°C. Its monostable multivibrator architecture makes it suitable for applications requiring precise timing and pulse generation.

Features

The SN74LS123DR features:

  • D-C triggered from active-high or active-low gated logic inputs
  • Retriggerable for very long output pulses, up to 100% duty cycle
  • Overriding clear terminates output pulse
  • Internal timing resistors (in '122 and LS122)

It's a dual retriggerable monostable multivibrator IC commonly used in various timing and pulse generation applications. Its versatile nature finds utility in areas such as waveform generation, pulse shaping, debounce circuits, and precision timing in digital systems.

Package

The package type of SN74LS123DR is SOIC-Narrow-16.

Pinout

The SN74LS123DR is a dual retriggerable monostable multivibrator IC with a package type of SOIC-Narrow-16, which means it has 16 pins.

Here's the concise pinout information:

  • Pins 1-8: Not connected
  • Pin 9: VCC (positive supply voltage)
  • Pins 10-11: GND (ground)
  • Pins 12-15: Inputs (A and B)
  • Pin 16: OUT (output)

The IC has two monostable multivibrators, each with its own input (A and B), output (OUT), and retrigger capability. The inputs can be triggered from active-high or active-low logic levels.

Manufacturer

The manufacturer of the SN74LS123DR is Texas Instruments (TI). TI is an American technology company that develops and manufactures semiconductors, including integrated circuits and microprocessors.

Applications

The SN74LS123DR is a dual retriggerable monostable multivibrator IC commonly used in various timing and pulse generation applications, including waveform generation, pulse shaping, debounce circuits, and precision timing in digital systems.

Equivalent

The equivalent products of SN74LS123DR are:

  • SN74HC123
  • SN54HC123 (HMOS)
  • MC14021U

These devices have similar functionality, including dual retriggerable monostable multivibrator operation, active-high and -low triggered inputs, and overriding clear. However, they may differ in terms of power supply voltage range or other parameters specific to each device family.

SN74LS123DR

Specifications

Number of channels 2 Supply voltage (min) (V) 4.75
Supply voltage (max) (V) 5.25 Technology family LS
Input type Bipolar Output type Push-Pull
Supply current (µA) 20000 IOL (max) (mA) 8
IOH (max) (mA) -0.4 Features Retriggerable, Standard speed (tpd > 50ns)
Operating temperature range (°C) 0 to 70 Rating Catalog
Package/Case SOIC-16

SN74LS123DR FAQs

1.Q: What are some related parts to the SN74LS123DR?

A: Alternatives include:

2.Q: Does the SN74LS123DR comply with industry certifications?

A: Yes, it is EU RoHS compliant and has an ECCN of EAR99. It is not rated for automotive (PPAP/No).

3.Q: What is the package type of the SN74LS123DR?

A: It comes in a 16-pin SOIC (Small Outline IC) package with gull-wing leads, measuring 10mm (max) in length and 1.5mm (max) in height.

4.Q: What are typical applications for the SN74LS123DR?

A: It’s used in:

5.Q: What are the key features of the SN74LS123DR?

A: Key features include:

6.Q: What is the pinout configuration of the SN74LS123DR?

A: The SN74LS123DR is a 16-pin SOIC package with dual monostable multivibrators. Key pins include:

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Ratings and Reviews

  • L
    L**e

    03/16/2025

    17

    Sound product. Perfect service!

  • W
    W**m

    11/20/2023

    4

    Okay. Only for a short time.

  • B
    B**n

    09/29/2022

    6

    Dear SellerThank you for my offering transistör which was come They are good condition it's package was goodSee you next shoppingBest regardsMustafa TORUCU

  • H
    H**n

    04/25/2022

    7

    good working correctly. It is getting very hot and sound is interrupted each two seconds. Reason for this behaviour is wrong circuit design, because this integrated circuit has differential audio outputs and you cannot connect differential signal to 3.5mm jack for headphones. You can see that RIGHT-NEGATIVE and LEFT-NEGATIVE outputs are shorted together, but you cannot short it, because it is not the same potential. Stereo signal has different signal for left speaker and different for right speaker and you cannot short it together. When you start to play music these ouputs are overloaded, supply current rise from 20mA to 200mA, circuit is overheated and thermal protection switch-off the ouput. If you remove this short by cutting PCB track then circuit behaves normally. On the blue version of this PCB are even labeled differential signals LP, LN, RN, RP close to connector. You cannot directly connect it to 3.5mm phones jack, because it has only 3 pins (L, R, GND). recommended!

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