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Diodes Incorporated 74LVC1G14QW5-7
- Part No.:
- 74LVC1G14QW5-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Gates and Inverters
- Package:
- SC-74A, SOT-753
- Datasheet:
-
74LVC1G14QW5-7.pdf
- Description:
- IC INVERT SCHMITT 1CH 1INP SOT25
- Quantity:
- Payment:
- Shipping:
Inventory:7,794
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Product details
Overview
74LVC1G14QW5-7 from Diodes Incorporated is an automotive-grade single Schmitt trigger inverter in SOT25 package, performing A → Y = A̅ with hysteresis, 1.65V–5.5V supply operation, ±24mA output drive at 3.3V, and IOFF-enabled partial power-down isolation-used for noise-immune signal conditioning in automotive body control modules.
For engineers reviewing the 74LVC1G14QW5-7 datasheet, 74LVC1G14QW5-7 pinout, 74LVC1G14QW5-7 application, or 74LVC1G14QW5-7 equivalent, key selection criteria include Schmitt input thresholds (VT+ = 2.16V / VT− = 1.41V @ 4.5V), 7.0ns max propagation delay at 3.3V, AEC-Q100 Grade 1 qualification (−40°C to +125°C), and 5.5V-tolerant inputs enabling mixed-voltage interfacing.
Technical Context
This device implements a single-input Schmitt-trigger inverter with asymmetric hysteresis (ΔVT = 0.71–1.04V across 1.65–5.5V VCC), enabling robust noise rejection on slow or noisy signals. Its IOFF circuit actively disables outputs during power-down, preventing back-current flow when VCC = 0V while inputs remain at 5.5V.
Designed for automotive systems, it supports full rail-to-rail input tolerance (VI = −0.5V to 6.5V), operates down to 1.65V for low-power subsystems, and delivers 24mA sink/source at 3.3V-matching LVC logic family voltage compatibility while exceeding standard 74LVC1G04 in noise immunity and power-down safety.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65V to 5.5V - Enables direct interface with 1.8V, 2.5V, 3.3V, and 5V logic domains without level shifters. |
| Input Voltage Tolerance | Up to 5.5V regardless of VCC - Allows safe connection to higher-voltage buses (e.g., 5V CAN transceiver I/O) while powered from 3.3V. |
| IOFF Leakage | ±2 μA max - Ensures negligible current flow during partial power-down, critical for battery-backed automotive modules. |
| tPD (Max) | 7.0 ns at VCC = 3.3V - Supports >100 MHz signal edge rates in timing-critical sensor preprocessing paths. |
| VT+ / VT− @ 4.5V | 2.16V / 1.41V - Provides 750mV hysteresis window, rejecting up to ±375mV of common-mode noise on analog-sourced digital inputs. |
| Output Drive | ±24 mA at VCC = 3.3V - Directly drives LED indicators, small relays, or multiple LVC inputs without external buffers. |
Pinout & Package
SOT25 (3.0mm × 2.8mm × 1.2mm, 0.95mm lead pitch) surface-mount package with exposed pad not connected; moisture sensitivity level 1 per J-STD-020, matte tin-plated leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (A) | Data Input | Schmitt-triggered inverter input; accepts 0–5.5V regardless of VCC; requires no external pull-up/down for defined state. |
| 2 (GND) | Ground Reference | Primary return path for all internal logic and output current; must be low-impedance to minimize ground bounce in high-speed switching. |
| 3 (Y) | Data Output | Inverted, push-pull output; sinks or sources up to 24mA; IOFF disables output when VCC = 0V to prevent backfeed. |
| 4 (VCC) | Supply Voltage | Power rail for internal logic and output stage; decoupling capacitor (100nF) required within 5mm for stable operation. |
| 5 (NC) | No Connection | Internally unconnected pin; must remain floating-no PCB trace or thermal pad connection permitted. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 Qualification | Validated for −40°C to +125°C ambient operation in automotive ECUs, meeting PPAP requirements and manufactured in IATF 16949 facilities. |
| 5.5V-Tolerant Inputs | Enables direct connection to legacy 5V sensors or microcontrollers without external clamping diodes or resistors. |
| IOFF Partial Power-Down | Prevents damaging reverse current flow into VCC when the device is unpowered but system inputs remain active-critical for hot-swap and sleep-mode designs. |
| Low Dynamic Power (CPD = 15 pF) | Reduces switching current consumption in high-frequency clock conditioning or debouncing applications, extending battery life in always-on modules. |
Applications
| Automotive Body Control Unit (BCU) | Industrial Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Debouncing mechanical switch inputs (e.g., door latch, hood open) subject to EMI and contact bounce in vehicle cabin modules. IC Role / Device Role / Timing Role: Schmitt inverter provides hysteresis-based noise filtering and clean digital edge generation before MCU GPIO sampling. Use Value: Eliminates need for RC filters and software debouncing, reducing BOM count and firmware latency while maintaining AEC-Q100 reliability. |
Use Scenario: Converting slow-rising analog comparator outputs (e.g., temperature threshold detection) into clean CMOS-compatible logic levels. IC Role / Device Role / Timing Role: Acts as a noise-immune level translator between analog front-end and digital controller, with precise VT+/VT− thresholds. Use Value: Prevents false triggering from EMI-induced glitches on long sensor traces, ensuring deterministic response in safety-critical industrial controls. |
| Automotive Infotainment Power Sequencing | Industrial PLC Input Isolation |
|
Use Scenario: Generating controlled enable/disable signals for sub-system power rails (e.g., display backlight, audio amplifier) during ignition-on/off transitions. IC Role / Device Role / Timing Role: Inverter with IOFF ensures output remains high-Z during main VCC ramp-up, avoiding race conditions in multi-rail sequencing. Use Value: Guarantees glitch-free power sequencing without external MOSFETs or complex timing ICs, simplifying layout and validation. |
Use Scenario: Isolating field-side 24V digital inputs from 3.3V PLC logic using optocoupler driver circuits where input rise time is inconsistent. IC Role / Device Role / Timing Role: Schmitt buffer cleans up slow, noisy optocoupler output edges before feeding FPGA or microcontroller interrupt pins. Use Value: Increases noise margin by >300mV over standard inverters, reducing spurious interrupts and improving system uptime in factory-floor environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schmitt trigger inverter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC1G14DBVR | Same logic function and pinout, but rated only for commercial temperature range (−40°C to +85°C); lacks AEC-Q100 qualification and IOFF. | Not suitable for under-hood or transmission-control applications requiring Grade 1 operation or partial power-down capability. | Select only for cost-sensitive non-automotive designs where extended temperature and IOFF are unnecessary. |
| 74LVC1G14GW,125 | NXP variant in SOT353 package (2.15mm × 2.1mm); identical electrical specs but different thermal resistance (θJA = 385°C/W vs. 184°C/W for SOT25). | Higher thermal impedance limits continuous 24mA operation in high-ambient industrial enclosures without derating. | Prefer for space-constrained PCBs where footprint size outweighs thermal performance needs. |
Compared with SN74LVC1G14DBVR and 74LVC1G14GW,125, the 74LVC1G14QW5-7 uniquely combines AEC-Q100 Grade 1 qualification, IOFF protection, and superior thermal performance in SOT25-making it the sole choice for automotive power-domain isolation and high-reliability industrial signal conditioning.
Availability
74LVC1G14QW5-7 is available at Aetrix Electronics and suitable for automotive body control units, industrial sensor interfaces, and PLC input conditioning requiring stable component supply, AEC-Q100 compliance, and guaranteed long-term availability.
Supply support for 74LVC1G14QW5-7 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability components for automotive, industrial, and computing markets with ISO/TS 16949 and IATF 16949 certified operations.
The 74LVC1G14Q series belongs to Diodes' automotive-qualified logic portfolio, designed specifically to replace legacy 74HC/74HCT devices in harsh-environment applications demanding extended temperature range, ESD robustness, and power-down safety.
FAQ
Can the 74LVC1G14QW5-7 operate reliably at 1.65V supply while driving a 24mA load?
No. The ±24mA output drive rating is specified only at VCC ≥ 3.0V. At 1.65V, the maximum guaranteed output current is ±4mA (per Recommended Operating Conditions table). Driving heavier loads at minimum VCC will cause VOL to exceed 0.7V and VOH to fall below 0.95V, violating logic-level margins.
What is the purpose of the NC pin (Pin 5) in the SOT25 package?
Pin 5 is internally unconnected and must remain electrically floating-no PCB trace, thermal pad, or grounding should be applied. Connecting it risks internal shorting or altered thermal behavior. The pin exists solely for mechanical symmetry and package compatibility with other 5-pin logic devices.
Does the IOFF feature activate automatically when VCC drops below a threshold?
Yes. IOFF engages whenever VCC falls below approximately 0.8V (per AEC-Q100 test conditions), disabling both output FETs to place Y in high-impedance state. This occurs passively-no control signal or external circuitry is needed-and remains active until VCC rises above the turn-on threshold (~1.2V).
How does the Schmitt trigger hysteresis improve performance over a standard inverter in automotive applications?
The 74LVC1G14QW5-7's hysteresis (0.71–1.04V) rejects noise spikes up to ±500mV on slow-rising inputs-common from inductive sensors or long harness runs. Unlike standard inverters that oscillate near threshold, this device produces one clean transition per input crossing, eliminating false triggers in critical functions like airbag deployment or brake light control.
74LVC1G14QW5-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- 74LVC
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Inverter
- Number of Circuits:
- 1
- Number of Inputs:
- 1
- Features:
- Schmitt Trigger
- Voltage - Supply:
- 1.65V ~ 5.5V
- Current - Quiescent (Max):
- 4 µA
- Current - Output High, Low:
- 32mA, 32mA
- Input Logic Level - Low:
- 0.3V ~ 1.45V
- Input Logic Level - High:
- 1.2V ~ 3.33V
- Max Propagation Delay @ V, Max CL:
- 6.5ns @ 5V, 50pF
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-25
74LVC1G14QW5-7 FAQ
1.How can I place an order for 74LVC1G14QW5-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVC1G14QW5-7 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 74LVC1G14QW5-7 reliable?
The price and inventory of 74LVC1G14QW5-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVC1G14QW5-7 is usually 5 days.
3.What payment methods are accepted for 74LVC1G14QW5-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVC1G14QW5-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVC1G14QW5-7?
74LVC1G14QW5-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVC1G14QW5-7 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 74LVC1G14QW5-7?
For technical support, including 74LVC1G14QW5-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVC1G14QW5-7 requirements.
6.How does Aetrix verify that 74LVC1G14QW5-7 is sourced from the original manufacturer or authorized distributors?
All 74LVC1G14QW5-7 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 74LVC1G14QW5-7 meets industry standards.
7.What is the process for return or replacement of 74LVC1G14QW5-7?
All 74LVC1G14QW5-7 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVC1G14QW5-7, 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 74LVC1G14QW5-7 part is unused and in its original packaging.
Return procedure for 74LVC1G14QW5-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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