Overview
The CD74HC123MT from Texas Instruments is a high-speed CMOS logic dual retriggerable monostable multivibrator. This integrated circuit is designed to operate within a wide temperature range of -55°C to 125°C and is packaged in a 16-pin SOIC (Small Outline Integrated Circuit) format. The device is part of the 74HC series, known for its high-speed CMOS logic capabilities. It features two independent monostable multivibrators, each capable of generating a single pulse of a fixed duration in response to a trigger input. The CD74HC123MT is RoHS compliant and adheres to various international export and compliance codes.
Key Specifications
| Parameter | Description |
|---|---|
| Package | SOIC-16 |
| Number of Pins | 16 |
| Min Operating Temperature | -55°C |
| Max Operating Temperature | 125°C |
| Min Supply Voltage | 2 V |
| Max Supply Voltage | 6 V |
| Operating Supply Voltage | 5 V |
| High Level Output Current | -5.2 mA |
| Low Level Output Current | 5.2 mA |
| Propagation Delay | 25 ns |
| Quiescent Current | 8 µA |
| Schmitt Trigger Input | Yes |
Key Features
- Dual retriggerable monostable multivibrators with reset capability.
- High-speed CMOS logic with Schmitt trigger inputs for improved noise immunity.
- Wide operating temperature range: -55°C to 125°C.
- Operating supply voltage range: 2 V to 6 V, with a typical operating voltage of 5 V.
- External resistor (RX) and capacitor (CX) control the timing and accuracy of the output pulse width.
- Retriggerable, allowing the output pulse width to be extended by additional trigger inputs.
- Low quiescent current: 8 µA.
- High level output current: -5.2 mA, low level output current: 5.2 mA.
- RoHS compliant and adheres to various international export and compliance codes.
Applications
The CD74HC123MT is suitable for a variety of applications requiring precise timing and pulse generation. These include:
- Timing circuits in digital systems.
- Pulse generators in electronic test equipment.
- Trigger circuits in audio and video systems.
- Control circuits in industrial automation and robotics.
- Any application requiring retriggerable monostable multivibrators with high-speed CMOS logic.
Q & A
- What is the CD74HC123MT?
The CD74HC123MT is a high-speed CMOS logic dual retriggerable monostable multivibrator from Texas Instruments.
- What is the package type of the CD74HC123MT?
The CD74HC123MT is packaged in a 16-pin SOIC (Small Outline Integrated Circuit) format.
- What is the operating temperature range of the CD74HC123MT?
The operating temperature range is -55°C to 125°C.
- What is the typical operating supply voltage of the CD74HC123MT?
The typical operating supply voltage is 5 V, with a range of 2 V to 6 V.
- How is the output pulse width controlled in the CD74HC123MT?
The output pulse width is controlled by an external resistor (RX) and an external capacitor (CX).
- Is the CD74HC123MT retriggerable?
Yes, the CD74HC123MT is retriggerable, allowing the output pulse width to be extended by additional trigger inputs.
- What is the quiescent current of the CD74HC123MT?
The quiescent current is 8 µA.
- Is the CD74HC123MT RoHS compliant?
Yes, the CD74HC123MT is RoHS compliant.
- What are some common applications of the CD74HC123MT?
Common applications include timing circuits, pulse generators, trigger circuits, and control circuits in various electronic systems.
- Is the CD74HC123MT scheduled for obsolescence?
Yes, the CD74HC123MT is scheduled for obsolescence and will be discontinued by the manufacturer.
