Overview
The 74HCT123D-Q100J, produced by Nexperia USA Inc., is a dual retriggerable monostable multivibrator with reset. This component is part of the 74HC/74HCT family and is designed to meet the stringent requirements of automotive applications, complying with the Automotive Electronics Council (AEC) standard Q100 (Grade 1). It offers a wide range of features that make it highly versatile and reliable in various electronic designs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Type Number | 74HCT123D-Q100J | - |
| VCC | 4.5 - 5.5 | V |
| Logic Switching Levels | TTL | - |
| Output Drive Capability | ± 4 | mA |
| Propagation Delay (tpd) | 26 | ns |
| Power Dissipation Considerations | Low | - |
| Operating Temperature Range | -40 to +125 | °C |
| Thermal Resistance (Rth(j-a)) | 90 | K/W |
| Package Name | SO16 (SOT109-1) | - |
Key Features
- Retriggerable Monostable Multivibrator: The output pulse width can be extended by retriggering the gated active LOW-going edge input (nA) or the active HIGH-going edge input (nB), allowing for very long pulses up to 100% duty factor.
- Direct Reset: The output pulse can be terminated at any time by a LOW-going edge on the reset input (nRD).
- Schmitt-Trigger Action: Inputs nA and nB have Schmitt-trigger action, making the circuit highly tolerant to slower input rise and fall times.
- Wide Supply Voltage Range: Operates from 4.5 V to 5.5 V.
- Low Power Dissipation: CMOS technology ensures low power consumption.
- High Noise Immunity: Complies with JEDEC standards and has high noise immunity.
- ESD Protection: Exceeds 2000 V for HBM (Human Body Model) and 1000 V for CDM (Charged Device Model).
- AEC-Q100 Qualified: Suitable for automotive applications, meeting the AEC-Q100 (Grade 1) standard.
Applications
The 74HCT123D-Q100J is suitable for a variety of applications, particularly in the automotive sector due to its AEC-Q100 qualification. It can be used in:
- Automotive systems requiring precise timing and pulse generation.
- Industrial control systems where reliable and long-duration pulses are needed.
- Consumer electronics that require low power consumption and high noise immunity.
- Other applications where retriggerable monostable multivibrators with reset are necessary.
Q & A
- What is the primary function of the 74HCT123D-Q100J?
The primary function is to act as a dual retriggerable monostable multivibrator with reset, allowing for the generation of pulses with programmable widths.
- What are the operating voltage ranges for the 74HCT123D-Q100J?
The component operates within a supply voltage range of 4.5 V to 5.5 V.
- How can the output pulse width be extended?
The output pulse width can be extended by retriggering the gated active LOW-going edge input (nA) or the active HIGH-going edge input (nB).
- What is the significance of Schmitt-trigger action in the inputs?
Schmitt-trigger action makes the circuit highly tolerant to slower input rise and fall times, improving noise immunity.
- What is the maximum operating temperature for the 74HCT123D-Q100J?
The component is specified to operate from -40°C to +125°C.
- What type of ESD protection does the 74HCT123D-Q100J offer?
The component exceeds 2000 V for HBM and 1000 V for CDM.
- Is the 74HCT123D-Q100J suitable for automotive applications?
Yes, it is AEC-Q100 (Grade 1) qualified, making it suitable for automotive applications.
- What package options are available for the 74HCT123D-Q100J?
The component is available in the SO16 (SOT109-1) package.
- How can the output pulse be terminated?
The output pulse can be terminated at any time by a LOW-going edge on the reset input (nRD).
- What are the benefits of using CMOS technology in the 74HCT123D-Q100J?
CMOS technology ensures low power dissipation and high noise immunity.
