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Texas Instruments SN74LVC3G14DCUTE4
- Part No.:
- SN74LVC3G14DCUTE4
- Manufacturer:
- Texas Instruments
- Category:
- Gates and Inverters
- Package:
- 8-VFSOP (0.091", 2.30mm Width)
- Datasheet:
-
SN74LVC3G14DCUTE4.pdf
- Description:
- IC INVERT SCHMITT 3CH 3IN 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,820
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Product details
Overview
SN74LVC3G14DCUTE4 from Texas Instruments is a triple Schmitt-trigger inverter IC operating from 1.65 V to 5.5 V, delivering 5.4 ns max propagation delay at 3.3 V, ±24-mA output drive, and Ioff support for live insertion. It performs three independent Boolean Y = A inversions with hysteresis (ΔVT up to 1.4 V), used in noise-immune signal conditioning for microcontroller reset circuits, sensor interface debouncing, and clock waveform shaping.
For engineers reviewing the SN74LVC3G14DCUTE4 datasheet, SN74LVC3G14DCUTE4 pinout, SN74LVC3G14DCUTE4 application, or SN74LVC3G14DCUTE4 equivalent, key selection criteria include VCC range compatibility (1.65–5.5 V), Schmitt-trigger hysteresis thresholds (VT+ = 2.2 V / VT– = 1.3 V at 3 V), Ioff-enabled partial-power-down behavior, and VSSOP-8 (DCU) package thermal performance (θJA = 227°C/W).
Technical Context
This device integrates three independent CMOS inverters with Schmitt-trigger input stages, enabling robust noise rejection via distinct positive-going (VT+) and negative-going (VT–) input thresholds. Each inverter exhibits rail-to-rail output swing and supports mixed-voltage interfacing with inputs tolerant to 5.5 V regardless of VCC.
The Ioff circuitry actively disables outputs during power-down, blocking current backflow and supporting hot-plug operation. Its NanoFree™ packaging uses the silicon die as the package body, eliminating bond wires and reducing parasitic inductance for improved high-speed signal integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65 V to 5.5 V - Enables direct interface with 1.8-V, 2.5-V, 3.3-V, and 5-V logic domains without level shifters. |
| Max tpd | 5.4 ns at VCC = 3.3 V - Supports clean inversion of signals up to ~185 MHz fundamental frequency in timing-critical paths. |
| Output Drive | ±24 mA at VCC = 3.3 V - Sufficient to directly drive multiple 74LVC inputs or small capacitive loads (<30 pF) without buffering. |
| Hysteresis ΔVT | 1.1 V typical at VCC = 3 V - Rejects noise spikes ≤1.1 V peak-to-peak on input lines, critical for mechanical switch or slow-rising sensor signals. |
| Ioff Current | ±10 μA max - Prevents back-drive current when VCC = 0 V, allowing safe insertion into powered-backplane systems. |
| Input Voltage Tolerance | 0 V to 5.5 V - Permits 5-V-tolerant inputs even when VCC = 1.65 V, simplifying mixed-supply system design. |
| Operating Temp | –40°C to +125°C - Qualified for automotive under-hood, industrial motor control, and extended-temperature embedded applications. |
Pinout & Package
VSSOP-8 (DCU) package: 2.3 mm × 2.0 mm body, 0.5-mm lead pitch, 0.9-mm max height, exposed pad not present, RoHS-compliant NiPdAu lead finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1A | Inverter 1 input - Accepts 0–5.5 V; Schmitt-trigger threshold hysteresis enables reliable switching on noisy or slow edges. |
| 2 | 1Y | Inverter 1 output - Rail-to-rail CMOS output capable of sourcing/sinking ±24 mA at 3.3 V. |
| 3 | 2A | Inverter 2 input - Electrically isolated from other inputs; shares same VCC/GND but operates independently. |
| 4 | 2Y | Inverter 2 output - Matches 1Y electrical specs; no internal coupling between outputs ensures channel independence. |
| 5 | GND | Digital ground reference - Must be low-impedance connection; shared return for all three inverters' current paths. |
| 6 | 3A | Inverter 3 input - Identical input structure to Pins 1 and 3; VT+ and VT– values scale linearly with VCC. |
| 7 | 3Y | Inverter 3 output - Fully specified for same drive strength, timing, and noise immunity as other outputs. |
| 8 | VCC | Supply voltage - Powers all three inverters; bypass capacitor (0.1 μF) required within 5 mm of this pin for stable operation. |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger inputs | VT+ = 2.2 V and VT– = 1.3 V at VCC = 3 V - Provides 0.9 V hysteresis margin to reject EMI and contact bounce in industrial controls. |
| Ioff partial-power-down | Active output disable at VCC = 0 V - Eliminates risk of back-driving powered subsystems during board hot-swap or firmware update sequences. |
| NanoFree™ packaging | Die-as-package construction in VSSOP-8 - Reduces package inductance by >50% vs. standard SOIC, improving edge fidelity above 100 MHz. |
| 5.5-V tolerant inputs | VI = 0–5.5 V regardless of VCC setting - Allows direct connection to legacy 5-V sensors or microcontrollers without external clamping diodes. |
| Low ICC | 10 μA max at VCC = 3.3 V - Enables use in battery-backed real-time clock supervisors or always-on wake-up logic with sub-μW quiescent impact. |
Applications
| Industrial Sensor Interface | Microcontroller Reset Conditioning |
|---|---|
Use Scenario: Debouncing mechanical limit switches and rotary encoders in PLC I/O modules where contact bounce exceeds 100 μs. IC Role / Device Role / Timing Role: Triple Schmitt-trigger inverter providing hysteresis-based noise filtering and signal squaring before MCU GPIO capture. Use Value: Eliminates need for external RC filters and software debounce routines, reducing BOM count and firmware latency by ≥200 μs per event. |
Use Scenario: Cleaning up slow-rising or noisy power-on reset (POR) signals generated by RC networks in ARM Cortex-M based motor drives. IC Role / Device Role / Timing Role: Inverter with precise VT thresholds reshaping POR pulse to meet MCU's 100-ns minimum pulse width requirement. Use Value: Guarantees deterministic reset assertion across –40°C to +125°C, avoiding boot failures caused by marginal threshold crossing. |
| USB-C Power Delivery Signaling | Automotive Body Control Module |
Use Scenario: Level-shifting and edge sharpening of USB PD BMC-encoded communication signals between 3.3-V controller and 5-V transceiver. IC Role / Device Role / Timing Role: Inverter acting as bidirectional signal conditioner with 5.5-V input tolerance and fast 5.4-ns tpd. Use Value: Maintains BMC timing budget while enabling direct interconnection without discrete level translators or added propagation delay. |
Use Scenario: Converting slow analog sensor outputs (e.g., thermistor divider) into clean digital interrupts for HVAC fan speed control in BCM ECUs. IC Role / Device Role / Timing Role: Schmitt-trigger inverter converting analog thresholds into glitch-free digital edges for interrupt-driven polling. Use Value: Prevents spurious interrupts due to thermal drift or conducted noise, reducing CPU wake-ups by >90% versus comparator-only solutions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schmitt-trigger inverter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC1G14DCKR | Single-channel version in SC70-5; identical VCC range, hysteresis, and Ioff, but only one inverter per package. | Requires three devices for triple functionality; increases PCB area and routing complexity vs. single-chip SN74LVC3G14DCUTE4. | Select when board space allows discrete placement or when only one inverter is needed per subsystem. |
| NC7SZ14P5X | Single-channel TinyLogic in SC70-5; 1.65–5.5 V operation, but no Ioff support and higher ICC (30 μA typical). | Lacks live-insertion capability and has reduced noise immunity (ΔVT = 0.5 V typical at 3 V); unsuitable for partial-power-down systems. | Choose only for cost-sensitive, non-hot-swap consumer applications where Ioff and full hysteresis are not required. |
Compared with SN74LVC1G14DCKR and NC7SZ14P5X, the SN74LVC3G14DCUTE4 delivers integrated triple functionality in one VSSOP-8 footprint, Ioff-enabled system-level power sequencing, and superior hysteresis (1.1 V vs. 0.5 V) - making it optimal for space-constrained, thermally demanding, or hot-pluggable industrial designs.
Availability
SN74LVC3G14DCUTE4 is available at Aetrix Electronics and suitable for industrial automation, automotive body electronics, and USB-C power delivery systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SN74LVC3G14DCUTE4 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
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and logic solutions, with over 50 years of innovation in high-reliability IC design and manufacturing.
The SN74LVC3G14DCUTE4 belongs to TI's LVC logic family, engineered for low-voltage, high-noise-immunity digital interfacing in automotive, industrial, and communications equipment where signal integrity and power flexibility are critical.
FAQ
What is the maximum operating temperature for SN74LVC3G14DCUTE4?
The SN74LVC3G14DCUTE4 is rated for continuous operation from –40°C to +125°C ambient temperature. This specification is validated per JEDEC JESD78 latch-up testing and thermal characterization in the VSSOP-8 (DCU) package, making it suitable for under-hood automotive and industrial motor control environments where thermal margins are tight.
Does SN74LVC3G14DCUTE4 support 5-V input signals when powered at 1.8 V?
Yes, SN74LVC3G14DCUTE4 supports input voltages up to 5.5 V regardless of VCC level, including at 1.8 V operation. This 5-V-tolerant input capability is built into the input protection structure and does not require external components, enabling direct interfacing with legacy 5-V peripherals in mixed-supply systems.
Can SN74LVC3G14DCUTE4 be used in partial-power-down applications?
Yes, SN74LVC3G14DCUTE4 includes an active Ioff circuit that disables all outputs when VCC = 0 V, limiting Ioff current to ±10 μA max. This feature prevents back-current flow into powered sections of the system, supporting safe live insertion and hot-swap functionality in modular backplane architectures.
What is the typical hysteresis voltage (ΔVT) of SN74LVC3G14DCUTE4 at 3.3 V supply?
At VCC = 3.3 V, the SN74LVC3G14DCUTE4 exhibits a typical hysteresis voltage (ΔVT = VT+ – VT–) of 1.1 V, with VT+ = 2.2 V and VT– = 1.3 V. This value is measured across the full operating temperature range and ensures reliable rejection of noise transients up to 1.1 V peak-to-peak on input lines.
Is SN74LVC3G14DCUTE4 pin-compatible with other packages in the same family?
No - SN74LVC3G14DCUTE4 uses the VSSOP-8 (DCU) package with 0.5-mm pitch, while the DCT (SSOP-8) and YZP (DSBGA-8) variants have different footprints, solder mask requirements, and thermal characteristics. Pin numbering is identical across packages, but PCB layout and reflow profiles must be qualified separately for each package type.
SN74LVC3G14DCUTE4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVC
- Package/Case:
- 8-VFSOP (0.091", 2.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Logic Type:
- Inverter
- Number of Circuits:
- 3
- Number of Inputs:
- 3
- Features:
- Schmitt Trigger
- Voltage - Supply:
- 1.65V ~ 5.5V
- Current - Quiescent (Max):
- 10 µA
- Current - Output High, Low:
- 32mA, 32mA
- Input Logic Level - Low:
- 0.7V ~ 2.5V
- Input Logic Level - High:
- 1.4V ~ 3.7V
- Max Propagation Delay @ V, Max CL:
- 4.3ns @ 5V, 50pF
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
SN74LVC3G14DCUTE4 FAQ
1.How can I place an order for SN74LVC3G14DCUTE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVC3G14DCUTE4 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 SN74LVC3G14DCUTE4 reliable?
The price and inventory of SN74LVC3G14DCUTE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVC3G14DCUTE4 is usually 5 days.
3.What payment methods are accepted for SN74LVC3G14DCUTE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LVC3G14DCUTE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74LVC3G14DCUTE4?
SN74LVC3G14DCUTE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVC3G14DCUTE4 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 SN74LVC3G14DCUTE4?
For technical support, including SN74LVC3G14DCUTE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVC3G14DCUTE4 requirements.
6.How does Aetrix verify that SN74LVC3G14DCUTE4 is sourced from the original manufacturer or authorized distributors?
All SN74LVC3G14DCUTE4 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 SN74LVC3G14DCUTE4 meets industry standards.
7.What is the process for return or replacement of SN74LVC3G14DCUTE4?
All SN74LVC3G14DCUTE4 units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVC3G14DCUTE4, 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 SN74LVC3G14DCUTE4 part is unused and in its original packaging.
Return procedure for SN74LVC3G14DCUTE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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