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onsemi NL37WZ14USG-Q
- Part No.:
- NL37WZ14USG-Q
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- 8-VFSOP (0.091", 2.30mm Width)
- Datasheet:
-
NL37WZ14USG-Q.pdf
- Description:
- IC INVERT SCHMITT 3CH 3-INP US8
- Quantity:
- Payment:
- Shipping:
Inventory:1,737
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Product details
Overview
NL37WZ14USG-Q from onsemi is a triple Schmitt-trigger inverter IC designed for noise-immune signal conditioning in automotive and industrial logic interfaces, operating from 1.65 V to 5.5 V, delivering 2.6 ns typical propagation delay at 5 V, ±24 mA drive capability at 3.0 V, and AEC-Q100 qualified performance up to +125 °C ambient.
For engineers reviewing the NL37WZ14USG-Q datasheet, pinout, applications, or equivalent options, key selection considerations include its hysteresis voltage (0.25–1.7 V), overvoltage-tolerant inputs/outputs (up to 5.5 V), IOFF partial power-down support, US8 package footprint, and automotive-grade qualification status.
Technical Context
The NL37WZ14USG-Q integrates three independent Schmitt-trigger inverters with input hysteresis enabling robust noise rejection in slow-rising or noisy digital signals. Its IOFF circuitry disables I/O leakage during power-down, supporting live-insertion and hot-swap systems.
It operates across 1.65–5.5 V supply range with rail-to-rail output swing, supports 15 pF load at ≤5.0 ns max propagation delay (5 V), and maintains functional integrity over −55 °C to +125 °C, meeting AEC-Q100 Grade 1 requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65 V to 5.5 V - Enables single-supply interoperability with 1.8 V, 2.5 V, 3.3 V, and 5 V logic families. |
| tPD (Typ) | 2.6 ns at VCC = 5 V - Supports high-speed timing-critical signal inversion without added latency. |
| VH (Hysteresis) | 0.25–1.7 V depending on VCC - Provides noise margin ≥300 mV in 3.3 V systems, rejecting EMI-induced glitches. |
| IOUT | ±24 mA at VCC = 3.0 V - Drives multiple standard CMOS loads or small capacitive buses directly. |
| IOFF Support | Active at VCC = 0 V - Prevents back-powering and signal contention during partial system shutdown. |
| Operating Temp | −55 °C to +125 °C - Validated for under-hood automotive and extended-temperature industrial control environments. |
Pinout & Package
Package: US8 (Case 493), 8-pin ultra-small surface-mount package with 0.5 mm pitch, 2.1 mm × 2.0 mm body size, and exposed pad not present.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (A1) | Inverter 1 Input | Schmitt-trigger input with hysteresis; accepts 0–5.5 V regardless of VCC level. |
| 2 (Y3) | Inverter 3 Output | CMOS-compatible output; sinks or sources up to 24 mA at 3.0 V. |
| 3 (A2) | Inverter 2 Input | Independent Schmitt input; electrically isolated from A1/A3 with no internal coupling. |
| 4 (GND) | Ground Reference | Primary return path for all logic and supply currents; must be low-impedance for noise immunity. |
| 5 (Y2) | Inverter 2 Output | Active-drive output; supports tri-state behavior only when externally gated via system logic. |
| 6 (A3) | Inverter 3 Input | Third Schmitt input; shares same hysteresis thresholds as A1 and A2 per VCC. |
| 7 (Y1) | Inverter 1 Output | Output with identical DC/AC specs as Y2/Y3; enables fanout to three independent loads. |
| 8 (VCC) | Positive Supply | Single power rail; powers all three inverters and internal bias networks simultaneously. |
Key Features
| Feature | Design Value |
|---|---|
| Overvoltage-Tolerant I/O | Inputs and outputs withstand up to 5.5 V independent of VCC - simplifies level-shifting in mixed-voltage systems. |
| Partial Power-Down (IOFF) | Leakage <10 µA when VCC = 0 V - prevents data corruption and bus contention during sleep modes. |
| Wide-Voltage Schmitt Trigger | Hysteresis scales with VCC (e.g., 0.93 V at 3.0 V) - ensures consistent noise margin across supply variants. |
| AEC-Q100 Qualified | Grade 1 (−40 °C to +125 °C junction) with PPAP capability - meets automotive electronics reliability and traceability requirements. |
Applications
| Automotive Body Control Module | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Debouncing mechanical switch inputs (e.g., door latch, trunk release) in harsh EMI environments. IC Role / Device Role / Timing Role: Schmitt-trigger inverter providing hysteresis-based noise filtering and clean digital edge generation. Use Value: Eliminates need for external RC filters or microcontroller polling; reduces firmware overhead and improves system response time. | Use Scenario: Converting slow-rising analog comparator outputs or thermistor-based threshold detectors into clean CMOS logic levels. IC Role / Device Role / Timing Role: Signal conditioner converting marginal analog transitions into robust digital signals for PLC or MCU input capture. Use Value: Ensures reliable detection of temperature, pressure, or proximity thresholds without false triggers from line noise or ground bounce. |
| Automotive Infotainment Interface | Medical Diagnostic Equipment Logic Interface |
Use Scenario: Level-shifting and noise suppression for push-button inputs routed across long PCB traces near RF modules. IC Role / Device Role / Timing Role: Input buffer isolating noisy front-panel switches from sensitive SoC GPIOs while maintaining fast response. Use Value: Prevents spurious wake-ups and UI freezes; supports direct connection to 5 V tolerant MCU pins without external resistors. | Use Scenario: Isolating and cleaning TTL/CMOS signals between isolated sensor subsystems and main control board in Class II medical devices. IC Role / Device Role / Timing Role: Galvanically decoupled logic interface element ensuring signal integrity across safety barriers. Use Value: Meets IEC 60601-1 creepage/clearance requirements via compact US8 footprint and low leakage (<1 µA). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schmitt-trigger inverter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC74VHC14DR2G | Same US8 package, but rated only to +85 °C; no AEC-Q100 qualification; slightly higher tPD (3.5 ns typ @ 5 V). | Not suitable for under-hood automotive use; acceptable for commercial industrial panels with controlled ambient. | Select when cost sensitivity outweighs automotive qualification and extended temperature needs. |
| SN74LVC14APWR | 6-channel version in TSSOP-14; 3.3 V optimized (1.65–3.6 V); lacks overvoltage tolerance beyond VCC + 0.5 V. | Requires level-shifting for 5 V signal paths; unsuitable for mixed-voltage legacy automotive designs. | Choose when higher channel count and lower static current (ICC < 1 µA) are prioritized over voltage flexibility and ruggedness. |
Compared with MC74VHC14DR2G and SN74LVC14APWR, the NL37WZ14USG-Q uniquely combines automotive qualification, 5.5 V overvoltage tolerance, and sub-3 ns speed in a triple-channel US8 package-making it the only option for space-constrained, high-reliability 1.65–5.5 V signal conditioning where thermal and EMI resilience are mandatory.
Availability
NL37WZ14USG-Q is available at Aetrix Electronics and suitable for automotive body control, industrial sensor interfacing, and medical diagnostic equipment requiring stable component supply across extended temperature and high-reliability production cycles.
Supply support for NL37WZ14USG-Q includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
onsemi (formerly ON Semiconductor) is a global semiconductor supplier focused on energy-efficient innovation for automotive, industrial, cloud, and IoT applications.
The NL37WZ14USG-Q belongs to onsemi's WZ logic family-designed specifically for low-voltage, high-speed, noise-immune digital interfacing in automotive and harsh-environment industrial systems.
FAQ
What is the maximum input voltage rating for NL37WZ14USG-Q?
The NL37WZ14USG-Q supports DC input voltages from −0.5 V to +6.5 V, and its inputs are overvoltage tolerant up to 5.5 V regardless of VCC level. This allows safe interfacing with 5 V signals even when powered from 1.8 V or 2.5 V supplies-eliminating external clamping diodes in mixed-voltage designs.
Does NL37WZ14USG-Q support partial power-down operation?
Yes, NL37WZ14USG-Q features IOFF circuitry that actively disables I/O leakage when VCC = 0 V. Measured IOFF current is ≤10 µA at 5.5 V input or output voltage, preventing back-driving and bus contention during system sleep or hot-swap events-critical for automotive gateway and modular control units.
Is NL37WZ14USG-Q pin-compatible with standard 74-series Schmitt inverters?
No, NL37WZ14USG-Q uses a non-standard US8 pinout (A1-Y3-A2-GND-Y2-A3-Y1-VCC) differing from common SOIC-8 or TSSOP-14 layouts. It is not a drop-in replacement for 74HC14 or 74LVC14; PCB layout must follow the specific pin assignment shown in Figure 2 of the datasheet.
What hysteresis voltage does NL37WZ14USG-Q provide at 3.3 V supply?
At VCC = 3.3 V, NL37WZ14USG-Q delivers a typical input hysteresis voltage (VH) of 0.93 V, with min/max values of 0.75 V and 1.15 V respectively. This provides ≥300 mV noise margin for signals crossing the switching threshold-ensuring reliable operation in electrically noisy engine bay or factory floor environments.
What is the thermal resistance (θJA) of NL37WZ14USG-Q in its US8 package?
The NL37WZ14USG-Q in US8 package has a thermal resistance θJA of 250 °C/W, measured per JESD51-7 on an FR4 board with minimum pad spacing and no airflow. This value informs thermal design margins: at 50 mW dissipation, junction-to-ambient rise is ~12.5 °C-well within the +150 °C absolute maximum TJ rating.
NL37WZ14USG-Q Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 8-VFSOP (0.091", 2.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Inverter
- Number of Circuits:
- 3
- Number of Inputs:
- 3
- Features:
- Schmitt Trigger
- Voltage - Supply:
- 1.65V ~ 5.5V
- Current - Quiescent (Max):
- 1 µA
- Current - Output High, Low:
- 32mA, 32mA
- Input Logic Level - Low:
- 0.75V ~ 1.9V
- Input Logic Level - High:
- 1.8V ~ 3.6V
- Max Propagation Delay @ V, Max CL:
- 5ns @ 5V, 50pF
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- US8
NL37WZ14USG-Q FAQ
1.How can I place an order for NL37WZ14USG-Q through Aetrix?
Please submit a Request for Quotation (RFQ) for NL37WZ14USG-Q on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for NL37WZ14USG-Q reliable?
The price and inventory of NL37WZ14USG-Q are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NL37WZ14USG-Q is usually 5 days.
3.What payment methods are accepted for NL37WZ14USG-Q?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NL37WZ14USG-Q transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NL37WZ14USG-Q?
NL37WZ14USG-Q orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NL37WZ14USG-Q order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for NL37WZ14USG-Q?
For technical support, including NL37WZ14USG-Q datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NL37WZ14USG-Q requirements.
6.How does Aetrix verify that NL37WZ14USG-Q is sourced from the original manufacturer or authorized distributors?
All NL37WZ14USG-Q products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that NL37WZ14USG-Q meets industry standards.
7.What is the process for return or replacement of NL37WZ14USG-Q?
All NL37WZ14USG-Q units undergo pre-shipment inspection (PSI). If there is an issue with NL37WZ14USG-Q, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The NL37WZ14USG-Q part is unused and in its original packaging.
Return procedure for NL37WZ14USG-Q:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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