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Diodes Incorporated 74LVC3G14SS8-7
- Part No.:
- 74LVC3G14SS8-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Gates and Inverters
- Package:
- 8-LSSOP, 8-MSOP (0.110", 2.80mm Width)
- Datasheet:
-
74LVC3G14SS8-7.pdf
- Description:
- IC INVERT SCHMITT 3CH 3INP 8SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,212
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Product details
Overview
74LVC3G14SS8-7 from Diodes Incorporated is a triple Schmitt-trigger inverter in SSOP-8 package, operating from 1.65V to 5.5V supply, with 5.5V-tolerant inputs, ±24mA output drive at 3.3V, and IOFF-enabled partial power-down protection. It performs three independent A = Y Boolean inversions with hysteresis for noise-immune signal conditioning in mixed-voltage logic interfaces.
For engineers reviewing the 74LVC3G14SS8-7 datasheet, 74LVC3G14SS8-7 pinout, 74LVC3G14SS8-7 application, or 74LVC3G14SS8-7 equivalent, this device is selected for voltage-level shifting, power-down isolation, and robust digital signal inversion where input noise rejection and rail-to-rail compatibility are critical.
Technical Context
The 74LVC3G14SS8-7 implements three independent Schmitt-trigger inverters, each with defined VT+ (e.g., 1.3–2.2V at VCC = 3V) and VT− (e.g., 0.6–1.3V), yielding 0.4–1.1V hysteresis. Its IOFF circuit actively disables outputs during power-down, blocking backflow current when VCC = 0V while inputs remain biased up to 5.5V.
It supports full 1.65–5.5V operation with propagation delays as low as 1.5ns (VCC = 5V, TA = −40°C to +85°C) and maintains CMOS-compatible input thresholds across voltage rails. Input capacitance is 4pF (typ), and supply current remains ≤10μA under static conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.65V to 5.5V - enables direct interface between 1.8V, 2.5V, 3.3V, and 5V logic domains without level shifters. |
| Input Voltage Tolerance | Up to 5.5V - allows safe connection of higher-voltage signals to lower-VCC logic without clamping diodes or external protection. |
| Output Drive Strength | ±24mA at VCC = 3V - sufficient to directly drive multiple LVC/LVT inputs or small capacitive loads (<30pF) with fast edge rates. |
| Hysteresis (ΔVT) | 0.4V to 1.4V depending on VCC - provides noise immunity against slow-rising/falling signals in noisy industrial or board-level environments. |
| IOFF Leakage | ±10μA max at VCC = 0V - ensures safe bus hold and prevents back-powering of powered-down sections in hot-swap or partial-power-down systems. |
| Propagation Delay (tPD) | 1.5ns min / 4.7ns max at VCC = 5V - supports >100MHz signal conditioning in clock distribution, reset synchronization, and debouncing paths. |
| ESD Robustness | 2kV HBM, 1kV CDM - exceeds JEDEC standards for handling and board assembly in non-ESD-controlled production lines. |
Pinout & Package
74LVC3G14SS8-7 is housed in an SSOP-8 (Shrink Small Outline Package) with 0.65mm lead pitch, 2.95mm × 4.00mm body size, and exposed pad-less construction. Thermal resistance θJA is 130°C/W on JEDEC 2s2p high-K board.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1A | Data Input (Inverter 1) | Accepts 5.5V-tolerant logic signal; triggers Schmitt inversion when crossing VT−/VT+ thresholds. |
| 3Y | Data Output (Inverter 3) | Push-pull CMOS output capable of sourcing/sinking ±24mA; disabled during IOFF mode. |
| 2A | Data Input (Inverter 2) | Independent input with identical Schmitt characteristics to 1A and 3A; electrically isolated per channel. |
| GND | Ground Reference | Primary return path for all I/O and supply currents; must be low-impedance for noise control and IOFF integrity. |
| 2Y | Data Output (Inverter 2) | Active-low inverted copy of 2A; timing-matched to 1Y and 3Y within 0.5ns skew over temperature. |
| 3A | Data Input (Inverter 3) | Third independent input; shares same VIH/VIL thresholds and hysteresis as other inputs. |
| 1Y | Data Output (Inverter 1) | Inverted logic replica of 1A; drives downstream loads with rail-to-rail swing and controlled rise/fall times. |
| VCC | Supply Voltage | Single power rail for all three inverters; IOFF activation requires VCC = 0V or near-zero bias. |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger inputs with programmable hysteresis | Enables reliable switching on slow or noisy signals (e.g., mechanical switch bounce, long PCB traces) without external RC networks. |
| IOFF partial power-down support | Prevents destructive current flow between live and unpowered system domains-critical for PCIe hot-plug, USB suspend, and modular backplanes. |
| 5.5V-tolerant inputs on 1.65–5.5V supply | Eliminates need for external level translators when interfacing legacy 5V peripherals with modern low-voltage microcontrollers. |
| ±24mA output drive at 3.3V | Drives ≥10 LVC loads or 30pF trace capacitance while maintaining <5ns propagation delay-suitable for fanout-critical clock buffers. |
| Lead-free, RoHS 3 & halogen-free "Green" construction | Complies with EU Directive 2015/863/EU and automotive change-control requirements when specified with AEC-Q200 qualification. |
Applications
| Keyboard/Keypad Debouncing | USB Device Power-State Isolation |
|---|---|
|
Use Scenario: Mechanical keypresses generate multi-millisecond contact bounce on matrix scan lines. IC Role / Device Role / Timing Role: Schmitt-trigger inverter cleans raw switch transitions into clean digital edges before MCU sampling. Use Value: Eliminates firmware debounce loops or external RC filters; reduces BOM count and improves response latency by >2ms. |
Use Scenario: USB peripheral enters suspend mode while host remains active, requiring isolation of VBUS-sourced logic lines. IC Role / Device Role / Timing Role: Inverter enables/disable control path for power-gating MOSFETs using IOFF to block reverse current during VCC ramp-down. Use Value: Prevents backfeeding into suspended USB PHY; meets USB 2.0 suspend current limits (<500μA) without auxiliary supervision circuitry. |
| Industrial Sensor Signal Conditioning | Legacy 5V Logic Interface to 3.3V Microcontroller |
|
Use Scenario: Analog sensor outputs digitized via open-collector comparator with slow rise time and EMI-induced glitches. IC Role / Device Role / Timing Role: Converts comparator output into noise-immune CMOS logic signal compatible with MCU GPIO interrupt inputs. Use Value: Rejects transients up to 1.1V peak amplitude; ensures single-edge detection per sensor event-no false triggers in factory-floor EMI. |
Use Scenario: Legacy 5V UART or SPI peripheral must communicate with 3.3V SoC without damaging I/O pins. IC Role / Device Role / Timing Role: Inverter acts as unidirectional level shifter: 5V input → clean 3.3V output, leveraging 5.5V-tolerant inputs and 3.3V-compatible VOH/VOL. Use Value: No external resistors or MOSFETs required; preserves signal integrity up to 10Mbps with <5ns skew across all three channels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar triple Schmitt-trigger inverter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC3G14DCUR | TSSOP-8 package (0.65mm pitch), identical electrical specs, TI's characterization includes AEC-Q100 Grade 2 data. | Better thermal performance (θJA = 115°C/W) and wider automotive qualification scope. | Select when AEC-Q100 compliance is mandatory and board space permits TSSOP footprint. |
| 74LVC3G14GM,132 | XSON-8 (2 × 1.35mm) package, same logic function, but lacks IOFF and has lower drive (±20mA @ 3.3V). | Smaller footprint ideal for wearables, but unsuitable for partial-power-down architectures. | Choose only for space-constrained consumer devices where IOFF is not required and drive demand is ≤20mA. |
Compared with SN74LVC3G14DCUR and 74LVC3G14GM,132, the 74LVC3G14SS8-7 uniquely balances SSOP-8 manufacturability, full IOFF protection, and ±24mA drive-making it optimal for industrial control modules needing robust hot-swap capability and legacy interface support.
Availability
74LVC3G14SS8-7 is available at Aetrix Electronics and suitable for industrial automation controllers, USB-C peripheral designs, and embedded sensor hubs requiring stable component supply, long-term lifecycle assurance, and RoHS 3-compliant sourcing.
Supply support for 74LVC3G14SS8-7 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, headquartered in Plano, Texas, with design centers across Asia and manufacturing in ISO/TS 16949-certified facilities.
This device belongs to Diodes' LVC logic family-engineered for low-voltage interoperability, mixed-signal interface robustness, and seamless integration into battery-powered and industrial-grade systems.
FAQ
Can 74LVC3G14SS8-7 operate with VCC = 1.65V while accepting 5V input signals?
Yes. The device is fully specified for 1.65V to 5.5V VCC operation and features 5.5V-tolerant inputs-meaning inputs may be driven up to 5.5V regardless of VCC level. At VCC = 1.65V, VOH remains ≥1.2V and VOL ≤0.45V under 4mA load, ensuring valid logic levels for downstream 1.8V receivers.
Does IOFF functionality require external control signals?
No. IOFF is automatic and intrinsic: when VCC drops below ~0.2V, internal circuitry disables all three outputs to high-impedance state, preventing current backflow from powered inputs into the unpowered VCC rail. No enable pin or external bias is needed-operation is transparent to system firmware.
What is the maximum capacitive load this device can drive while maintaining specified tPD?
The datasheet specifies switching characteristics with CL = 30pF (for VCC ≥ 2.5V) and RL = 500Ω. At 3.3V, it reliably drives ≤30pF loads with tPD ≤5.9ns (−40°C to +125°C). Driving >50pF increases propagation delay nonlinearly and may cause marginal timing in high-speed clock paths-external buffering is recommended beyond that limit.
Is 74LVC3G14SS8-7 qualified for automotive applications?
As shipped, 74LVC3G14SS8-7 is not AEC-Q100 qualified. However, Diodes offers automotive-grade variants (e.g., 74LVC3G14QSS8X) with PPAP documentation, extended temperature screening (−40°C to +125°C), and IATF 16949 manufacturing controls. Contact Diodes or Aetrix for qualified alternatives meeting automotive change-control requirements.
74LVC3G14SS8-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- 74LVC
- Package/Case:
- 8-LSSOP, 8-MSOP (0.110", 2.80mm 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):
- 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:
- 4.7ns @ 5V, 50pF
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SSOP
74LVC3G14SS8-7 FAQ
1.How can I place an order for 74LVC3G14SS8-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVC3G14SS8-7 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 74LVC3G14SS8-7 reliable?
The price and inventory of 74LVC3G14SS8-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVC3G14SS8-7 is usually 5 days.
3.What payment methods are accepted for 74LVC3G14SS8-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVC3G14SS8-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVC3G14SS8-7?
74LVC3G14SS8-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVC3G14SS8-7 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 74LVC3G14SS8-7?
For technical support, including 74LVC3G14SS8-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVC3G14SS8-7 requirements.
6.How does Aetrix verify that 74LVC3G14SS8-7 is sourced from the original manufacturer or authorized distributors?
All 74LVC3G14SS8-7 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 74LVC3G14SS8-7 meets industry standards.
7.What is the process for return or replacement of 74LVC3G14SS8-7?
All 74LVC3G14SS8-7 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVC3G14SS8-7, 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 74LVC3G14SS8-7 part is unused and in its original packaging.
Return procedure for 74LVC3G14SS8-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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