Overview
The 74HCT123PW-Q100,11 from Nexperia USA Inc. is a dual retriggerable monostable multivibrator with reset. This high-speed Si-gate CMOS device is part of the 74HCT family and is pin-compatible with Low-power Schottky TTL (LSTTL). It is designed to provide a flexible and reliable solution for generating output pulses with programmable widths.
The device is qualified to the Automotive Electronics Council (AEC) standard Q100 (Grade 1), making it suitable for use in automotive applications. It operates over a wide supply voltage range from 2.0 V to 6.0 V and is specified from -40 °C to +125 °C, ensuring robust performance in various environmental conditions.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| VCC | Operating voltage range | 2.0 | - | 6.0 | V |
| VIH | HIGH-level input voltage (VCC = 4.5 V to 5.5 V) | 2.0 | 1.6 | - | V |
| VIL | LOW-level input voltage (VCC = 4.5 V to 5.5 V) | - | 0.8 | 1.2 | V |
| VOH | HIGH-level output voltage (VCC = 4.5 V, IO = -20 μA) | 4.4 | 4.5 | - | V |
| tpd | Propagation delay (nRD, nA, nB to nQ or nQ; CEXT = 0 pF; REXT = 5 kΩ) | - | 83 | 255 | ns |
| Tamb | Operating temperature range | -40 | - | 125 | °C |
| Package | TSSOP16 (SOT403-1) | - | - | - | - |
Key Features
- Dual Retriggerable Monostable Multivibrator: The device allows for the generation of output pulses with programmable widths using external components (REXT and CEXT).
- Schmitt-Trigger Action: Inputs nA and nB have Schmitt-trigger action, making the circuit highly tolerant to slower input rise and fall times.
- Reset Capability: The output pulse can be terminated at any time by a LOW-going edge on the reset input (nRD).
- High Noise Immunity: The device features high noise immunity and latch-up performance exceeding 100 mA per JESD 78 Class II Level B.
- ESD Protection: It includes ESD protection with HBM exceeding 2000 V and CDM exceeding 1000 V.
- Automotive Qualification: Qualified to AEC-Q100 (Grade 1) for use in automotive applications.
- Low Power Dissipation: CMOS low power dissipation.
- Multiple Package Options: Available in TSSOP16 package with Side-Wettable Flanks for Automatic Optical Inspection (AOI) of solder joints.
Applications
The 74HCT123PW-Q100,11 is versatile and can be used in a variety of applications across different industries:
- Automotive: Suitable for automotive systems due to its AEC-Q100 qualification.
- Industrial Control Systems: Used in timing and pulse generation circuits.
- Consumer Electronics: Found in applications requiring precise timing and pulse control.
- Medical Devices: Used in medical equipment for timing and signal processing.
- Telecommunications: Employed in telecommunications equipment for signal timing and control.
Q & A
- What is the primary function of the 74HCT123PW-Q100,11?
The primary function is to act as a dual retriggerable monostable multivibrator with reset, generating output pulses with programmable widths.
- What is the operating voltage range of the 74HCT123PW-Q100,11?
The operating voltage range is from 2.0 V to 6.0 V.
- 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.
- 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 ESD protection levels for this device?
The device has ESD protection with HBM exceeding 2000 V and CDM exceeding 1000 V.
- Is the 74HCT123PW-Q100,11 suitable for automotive applications?
Yes, it is qualified to AEC-Q100 (Grade 1) for use in automotive applications.
- What package options are available for this device?
The device is available in a TSSOP16 package with Side-Wettable Flanks for Automatic Optical Inspection (AOI) of solder joints.
- What is the propagation delay of the 74HCT123PW-Q100,11?
The propagation delay is approximately 83 ns (typical) for VCC = 4.5 V.
- What is the operating temperature range of the device?
The operating temperature range is from -40 °C to +125 °C.
- Does the device support low power dissipation?
Yes, it features CMOS low power dissipation.
