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Diodes Incorporated 74AHC1G14QSE-7
- Part No.:
- 74AHC1G14QSE-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Gates and Inverters
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
74AHC1G14QSE-7.pdf
- Description:
- IC INVERT SCHMITT 1CH 1IN SOT353
- Quantity:
- Payment:
- Shipping:
Inventory:6,672
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Product details
Overview
74AHC1G14QSE-7 from Diodes Incorporated is an automotive-grade single Schmitt-trigger inverter gate in SOT353 package, operating from 2.0V to 5.5V supply, delivering ±8mA output drive at 4.5V, with hysteresis (ΔVT = 0.25–1.6V) and Grade 1 temperature range (−40°C to +125°C), used for noise-immune signal conditioning in engine control units.
For engineers reviewing the 74AHC1G14QSE-7 datasheet, 74AHC1G14QSE-7 pinout, 74AHC1G14QSE-7 application, or 74AHC1G14QSE-7 equivalent, this page delivers verified electrical specs, AEC-Q100 qualification status, propagation delay (1.0–16.5 ns), input threshold voltages (VT+ = 2.2–3.85V), and SOT353 terminal mapping - all critical for automotive signal integrity validation.
Technical Context
This device implements a single-channel inverting Schmitt trigger with rail-to-rail input tolerance (VI not limited by VCC), enabling robust interfacing with slow-rising signals across 2.0–5.5V logic domains. Its balanced propagation delays (tPD = 1.0–16.5 ns) and matched drive capability support precise timing in feedback loops and oscillator circuits.
The IC integrates ESD protection exceeding 2 kV HBM and 1 kV CDM per AEC-Q100, latch-up immunity >100 mA, and operates reliably up to TJ = +150°C. Its CMOS architecture ensures ultra-low ICC (≤40 µA at 5.5V) while maintaining full functionality across −40°C to +125°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.0V to 5.5V - supports direct interface with 3.3V and 5V microcontrollers without level shifters |
| Input Threshold Hysteresis (ΔVT) | 0.25V to 1.6V - rejects noise on slow edges (e.g., mechanical switch bounce, sensor outputs) |
| Propagation Delay (tPD) | 1.0 ns (min) to 16.5 ns (max) at CL = 15pF, VCC = 3.3V - enables stable oscillation in RC-based clock generators |
| Output Drive Current | ±8mA at VCC = 4.5V - sufficient to directly drive LED indicators or small logic loads without buffer stages |
| Ambient Temperature Range | −40°C to +125°C - qualified for under-hood automotive applications per AEC-Q100 Grade 1 |
| ESD Protection | 2 kV HBM, 1 kV CDM - exceeds AEC-Q100-002/-011 requirements for production reliability |
| Input Capacitance (CI) | 2.0 pF (typ) at 5.5V - minimizes loading on high-impedance sources like crystal oscillator outputs |
Pinout & Package
SOT353 (2.15 mm × 2.1 mm × 1.1 mm, 0.65 mm pitch) - ultra-compact 5-pin surface-mount package with exposed pad thermal path; moisture sensitivity level 1 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (A) | Data Input | Schmitt-trigger input accepting rail-to-rail signals independent of VCC; tolerant of slow edge rates |
| 2 (GND) | Ground Reference | Return path for logic and output current; must be low-impedance to maintain noise margin |
| 3 (Y) | Data Output | Inverted, push-pull output capable of sourcing/sinking ±8mA; drives capacitive loads ≤50pF |
| 4 (VCC) | Power Supply | Primary supply rail (2.0–5.5V); decoupling capacitor required within 5 mm for stable switching |
| 5 (NC) | No Connection | Internally unconnected pin; must remain floating - no external tie or routing permitted |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger input action | Enables reliable signal recovery from noisy or slow-rising sources (e.g., thermistor networks, potentiometer wipers) |
| AEC-Q100 Grade 1 qualification | Validated for automotive use including engine control, body electronics, and ADAS sensor interfaces |
| Rail-to-rail input voltage range | Accepts VI from −0.5V to VCC + 0.5V - eliminates need for external clamping diodes in overvoltage scenarios |
| Low dynamic power consumption | CPD = 10 pF at 1 MHz - reduces system-level power budget in always-on vehicle modules |
| Lead-free, halogen-free "Green" construction | Fully RoHS 3 compliant (<900 ppm Br/Cl, <1000 ppm Sb) - meets global automotive environmental mandates |
Applications
| Engine Control Unit (ECU) Signal Conditioning | Automotive Body Control Module (BCM) |
|---|---|
|
Use Scenario: Cleaning noisy crankshaft position sensor signals before feeding to MCU timer capture inputs. IC Role / Device Role / Timing Role: Schmitt-trigger inverter acting as digital front-end filter to eliminate false zero-crossing detection. Use Value: ΔVT ≥ 0.4V ensures rejection of EMI-induced transients on long harness runs, improving misfire detection accuracy. |
Use Scenario: Debouncing door lock/unlock switch inputs in BCM systems with mechanical contact bounce. IC Role / Device Role / Timing Role: Single-gate inverter providing hysteresis-based edge stabilization prior to GPIO sampling. Use Value: VT+ = 3.15V / VT− = 1.35V at 4.5V supply creates 1.8V hysteresis window, eliminating multiple interrupt triggers per press. |
| Industrial Sensor Interface Board | Automotive Infotainment Power Sequencing |
|
Use Scenario: Converting analog comparator outputs (e.g., temperature threshold alerts) into clean logic-level enable signals. IC Role / Device Role / Timing Role: Noise-immune inverter converting open-drain comparator outputs into CMOS-compatible active-high signals. Use Value: Balanced drive (±8mA) allows direct driving of 74LVC input loads without pull-up resistors, reducing BOM count. |
Use Scenario: Generating delayed reset pulses for display controller ICs during cold-start power-up sequences. IC Role / Device Role / Timing Role: Inverter-based RC oscillator stage producing precise 10–100 ms timing windows for sequenced enable asserts. Use Value: tPD variation < 2.5 ns across −40°C to +125°C ensures consistent delay timing despite under-dash thermal cycling. |
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 | Wider VCC range (1.65–5.5V), lower VT+ (1.4V typ at 3.3V), no AEC-Q100 qualification | Not suitable for automotive Grade 1 environments; acceptable for industrial/commercial PCBs only | Select when cost-sensitive non-automotive designs require broader low-voltage operation down to 1.65V |
| MC74VHC1G14DTT1G | Same AEC-Q100 Grade 1 rating, but higher ICC (up to 100 µA), larger SOT-23-5 package (3.0 × 2.8 mm) | Higher static power limits use in battery-powered modules; larger footprint impacts high-density layouts | Select when legacy board compatibility with ON Semiconductor's footprint is required and thermal derating margin exists |
Compared with SN74LVC1G14DBVR and MC74VHC1G14DTT1G, the 74AHC1G14QSE-7 uniquely balances AEC-Q100 compliance, minimal SOT353 footprint, and sub-40 µA ICC - making it optimal for space-constrained, thermally demanding automotive modules where qualification and efficiency are jointly critical.
Availability
74AHC1G14QSE-7 is available at Aetrix Electronics and suitable for engine control units, body control modules, and infotainment power sequencing requiring stable component supply across automotive production lifecycles.
Supply support for 74AHC1G14QSE-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.
The 74AHC1G14QSE-7 belongs to Diodes' AHC logic family - engineered specifically for automotive signal integrity, combining Schmitt-trigger noise immunity with AEC-Q100 qualification and compact packaging.
FAQ
Is the 74AHC1G14QSE-7 pin-compatible with standard 5-pin SOT23 logic gates?
No - it uses SOT353 (also known as SC-70-5), which has 0.65 mm lead pitch and 2.15 mm × 2.1 mm body size, whereas standard SOT23-5 (e.g., SOT25) measures 3.0 mm × 2.8 mm with 0.95 mm pitch. Footprint and stencil design must match SOT353 specifications to ensure solder joint reliability.
Can the NC pin (Pin 5) be grounded or tied to VCC for improved EMI performance?
No - Pin 5 is internally unconnected and must remain electrically floating. Connecting it to any potential violates the device's validated layout and may induce parasitic coupling or alter internal capacitance, risking timing skew or increased radiated emissions per AEC-Q100 test protocols.
What is the maximum capacitive load the 74AHC1G14QSE-7 can drive while maintaining specified tPD?
The datasheet specifies tPD values for CL = 15 pF and CL = 50 pF loads. At VCC = 5V, tPD remains within spec (≤13.5 ns) up to 50 pF. Driving >50 pF increases propagation delay nonlinearly and may cause output rise/fall time degradation beyond AEC-Q100 timing margins.
Does the 74AHC1G14QSE-7 support mixed-voltage operation where input signals exceed VCC?
Yes - its inputs tolerate VI from −0.5V to VCC + 0.5V regardless of supply voltage, enabling safe interfacing with higher-voltage sensors (e.g., 12V LIN bus signals via resistor divider) without external clamping, provided current into VI stays within ±20 mA clamp limits.
74AHC1G14QSE-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- 74AHC
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Inverter
- Number of Circuits:
- 1
- Number of Inputs:
- 1
- Features:
- Schmitt Trigger
- Voltage - Supply:
- 2V ~ 5.5V
- Current - Quiescent (Max):
- 2 µA
- Current - Output High, Low:
- 8mA, 8mA
- Input Logic Level - Low:
- 0.9V ~ 1.65V
- Input Logic Level - High:
- 2.2V ~ 3.85V
- Max Propagation Delay @ V, Max CL:
- 10.6ns @ 5V, 50pF
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-353
74AHC1G14QSE-7 FAQ
1.How can I place an order for 74AHC1G14QSE-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AHC1G14QSE-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 74AHC1G14QSE-7 reliable?
The price and inventory of 74AHC1G14QSE-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHC1G14QSE-7 is usually 5 days.
3.What payment methods are accepted for 74AHC1G14QSE-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHC1G14QSE-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AHC1G14QSE-7?
74AHC1G14QSE-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AHC1G14QSE-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 74AHC1G14QSE-7?
For technical support, including 74AHC1G14QSE-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHC1G14QSE-7 requirements.
6.How does Aetrix verify that 74AHC1G14QSE-7 is sourced from the original manufacturer or authorized distributors?
All 74AHC1G14QSE-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 74AHC1G14QSE-7 meets industry standards.
7.What is the process for return or replacement of 74AHC1G14QSE-7?
All 74AHC1G14QSE-7 units undergo pre-shipment inspection (PSI). If there is an issue with 74AHC1G14QSE-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 74AHC1G14QSE-7 part is unused and in its original packaging.
Return procedure for 74AHC1G14QSE-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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