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74HC123D - Product Details
Introduction:
The 74HC123D is a high-speed CMOS dual retriggerable monostable
multivibrator IC that provides reliable and precise timing control
in digital circuits. Designed for a wide range of applications,
this IC offers low power consumption, high noise immunity, and
excellent signal integrity. With its compact package and versatile
functionality, the 74HC123D is an ideal choice for timing, pulse
generation, and control applications.
Key Features:
Dual Retriggerable Monostable Multivibrator: The 74HC123D consists
of two independent retriggerable monostable multivibrators,
allowing for precise timing control and pulse generation.
High-Speed CMOS Technology: This IC is constructed using high-speed
CMOS technology, enabling fast and accurate timing control and
reducing signal delay.
Wide Operating Voltage Range: The 74HC123D can operate within a
wide voltage range of 2V to 6V, making it compatible with various
digital systems and power supplies.
Low Power Consumption: With its low power consumption, the 74HC123D
helps to optimize energy efficiency in battery-powered devices and
low-power applications.
High Noise Immunity: This IC offers excellent noise immunity,
ensuring reliable timing control and pulse generation in noisy
environments and minimizing the risk of signal distortion.
Retriggerable Operation: The 74HC123D operates in retriggerable
mode, allowing for precise control and adjustment of the output
pulse width by applying trigger signals during the timing cycle.
Schmitt-Trigger Inputs: This IC features Schmitt-trigger inputs,
providing hysteresis and allowing for precise triggering and noise
rejection.
Compact SOIC Package: The 74HC123D is available in a compact and
space-saving SOIC-16 package, facilitating easy integration into
circuit boards with limited space.
Electrical Characteristics:
To provide you with a comprehensive overview of the 74HC123D's
electrical characteristics, please refer to the table below:
| Parameter | Symbol | Value |
|---|
| Supply Voltage (Operating) | VCC | 2V to 6V |
| Pulse Width Range (Adjustable) | tW | 30 ns to 1000 ns |
| Propagation Delay (Max) | tPD | 35 ns |
| Operating Temperature Range | TA | -40°C to +125°C |
| Package | SOIC-16 | |
Pin Configuration:
The 74HC123D has a specific pin configuration for its various
inputs, outputs, and power supply. The table below provides an
overview of the pin configuration:
| Pin Number | Pin Name | Description |
|---|
| 1 | CLR | Clear Input (Active Low) |
| 2 | A | Trigger Input A |
| 3 | B | Trigger Input B |
| 4 | RC | Retrigger Control Input (Active Low) |
| 5 | REFA | Reference Voltage Input A |
| 6 | REFB | Reference Voltage Input B |
| 7 | Q | Output |
| 8 | GND | Ground |
| 9 | VCC | Positive Power Supply |
Applications:
The 74HC123D dual retriggerable monostable multivibrator IC finds
applications in a variety of timing, pulse generation, and control
tasks, including:
Pulse Width Modulation (PWM): Use the 74HC123D to generate precise
PWM signals for controlling motors, lighting systems, and other
applications requiring variable pulse widths.
Timing and Delay Circuits: Employ this IC in timing and delay
circuits for generating accurate time intervals and controlling
event sequences.
Digital Communication Systems: The 74HC123D can be used in digital
communication systems for generating synchronization signals, clock
gating, and timing control.
Control and Automation Systems: Utilize this IC in control and
automation systems for generating precise timing signals and
controlling the operation of various devices.
Test and Measurement Equipment: Incorporate the 74HC123D in test
and measurement equipment for generating precise timing pulses and
triggering events during testing and analysis.
Power Supply Sequencing: The 74HC123D is suitable for power supply
sequencing applications, ensuring proper power-up and power-down
sequences in complex systems.
Please note that the applications mentioned above are just a few
examples of the 74HC123D's versatility. Its high-speed operation,
low power consumption, and excellent noise immunity make it
suitable for various timing and control applications.
Conclusion:
The 74HC123D dual retriggerable monostable multivibrator IC
provides reliable and precise timing control in a wide range of
applications. With its high-speed CMOS technology, wide operating
voltage range, and low power consumption, it ensures accurate
timing control and pulse generation with minimal signal delay. The
compact SOIC-16 package enables easy integration into
space-constrained designs. Incorporate the 74HC123D into your
circuits to achieve optimal timing control and enhance the
performance of your systems.
For more detailed information, datasheets, and technical support,
please visit our website or contact our sales team.
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