Texas Instruments

SN74LS123DE4  

Multivibrators

SN74LS123DE4 Description

The SN74LS123DE4 is a high-performance monostable multivibrator IC designed for a wide range of electronic applications. Manufactured by Texas Instruments, this device is part of the 74LS series and features two independent monostable circuits. It operates within a supply voltage range of 4.75 V to 5.25 V and is optimized for surface-mount applications. The operating temperature range of 0°C to 70°C makes it suitable for use in various environmental conditions. With a propagation delay of 28 ns, the SN74LS123DE4 ensures fast and reliable signal processing. The device is packaged in a tube, providing easy handling and storage. It is also compliant with the latest environmental regulations, including REACH and RoHS3, ensuring it meets industry standards for safety and sustainability.

SN74LS123DE4 Features

• Monostable Logic Type: The SN74LS123DE4 features a monostable logic type, which is ideal for applications requiring a single, stable output pulse in response to an input trigger.
• Fast Propagation Delay: With a propagation delay of only 28 ns, this IC ensures rapid signal processing, making it suitable for high-speed applications.
• Independent Circuits: The device includes two independent monostable circuits, allowing for simultaneous operation of two different monostable functions within a single package.
• Surface Mount Compatibility: The surface-mount design of the SN74LS123DE4 facilitates easy integration into modern printed circuit boards (PCBs) and supports automated assembly processes.
• Wide Operating Temperature Range: The operating temperature range of 0°C to 70°C ensures reliable performance in various environmental conditions, making it suitable for both industrial and consumer applications.
• Compliance with Environmental Regulations: The SN74LS123DE4 is REACH unaffected and RoHS3 compliant, ensuring it meets the highest standards for environmental safety and sustainability.
• Low Moisture Sensitivity: With a moisture sensitivity level (MSL) of 1 (unlimited), the device is highly resistant to moisture, reducing the risk of damage during storage and handling.
• High Output Current Capability: The IC provides an output current of 400µA for high-level outputs and 8mA for low-level outputs, ensuring robust performance in driving various loads.

SN74LS123DE4 Applications

The SN74LS123DE4 is ideal for a variety of applications where precise timing and control are required. Some specific use cases include:

• Pulse Generation: The monostable circuits can be used to generate precise pulses for timing and control applications, such as in digital clocks, timers, and counters.
• Debouncing Switches: The device can effectively debounce mechanical switches, ensuring clean and reliable digital input signals.
• Noise Filtering: The monostable circuits can filter out noise and glitches in digital signals, providing stable and accurate output.
• Sequential Timing: The SN74LS123DE4 can be used in sequential timing applications, such as in microcontroller circuits, where precise timing intervals are necessary.
• Data Communication: In data communication systems, the IC can be used to generate and control timing signals for data transmission and reception.

Conclusion of SN74LS123DE4

The SN74LS123DE4 is a versatile and reliable monostable multivibrator IC that offers a range of technical specifications and performance benefits. Its fast propagation delay, wide operating temperature range, and compliance with environmental regulations make it an excellent choice for various electronic applications. The inclusion of two independent monostable circuits and its surface-mount compatibility further enhance its utility in modern electronic designs. Whether used for pulse generation, noise filtering, or sequential timing, the SN74LS123DE4 provides a robust and efficient solution for precise timing control.

SN74LS123DE4 Documents

Download datasheets and manufacturer documentation for SN74LS123DE4

Images :

Mechanical Outline Drawing      

PCN :

Product Change Notification 2024-06-13 (PDF)      

Models :

SN74LS123DE4 Symbol & Footprint by SnapMagic      

Product Catalogs :

Logic Guide (Rev. AB)