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Diodes Incorporated 74AHC1G14SE-7
- Part No.:
- 74AHC1G14SE-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Gates and Inverters
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
74AHC1G14SE-7.pdf
- Description:
- IC INVERT SCHMITT 1CH 1IN SOT353
- Quantity:
- Payment:
- Shipping:
Inventory:260,311
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Product details
Overview
74AHC1G14SE-7 from Diodes Incorporated is a single-channel Schmitt-trigger inverter IC in SOT353 package, operating from 2.0V to 5.5V supply, delivering ±8 mA output drive at 5V, with input hysteresis (ΔVT = 0.5–1.6 V) and propagation delay as low as 3.2 ns (CL = 15 pF, VCC = 5 V). It enables robust signal conditioning in noise-prone digital interfaces.
For engineers reviewing the 74AHC1G14SE-7 datasheet, 74AHC1G14SE-7 pinout, 74AHC1G14SE-7 application, or 74AHC1G14SE-7 equivalent, key selection criteria include input threshold symmetry (VT+ = 3.85 V / VT− = 1.65 V at 5.5 V), ESD robustness (2 kV HBM), thermal resistance (θJA = 430 °C/W), and RoHS-compliant green packaging.
Technical Context
This device implements a single inverting logic gate with Schmitt-trigger input thresholds, enabling reliable waveform shaping of slow-rising or noisy signals. Its CMOS architecture ensures low static current (ICC ≤ 40 µA) and rail-to-rail output swing across the full 2.0–5.5 V supply range.
The logic function Y = A̅ is implemented with push-pull output stage, supporting both sourcing and sinking up to ±8 mA at 5 V. Input hysteresis (0.5–1.6 V depending on VCC) provides noise immunity without external components, eliminating need for RC filtering in level-shifting or debouncing circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.0 V to 5.5 V - supports interoperability across 3.3 V and 5 V logic domains |
| Input Hysteresis (ΔVT) | 0.5 V to 1.6 V - rejects noise up to ±0.8 V on input transitions |
| Propagation Delay (tpd) | 3.2 ns (min) at VCC = 5 V, CL = 15 pF - enables timing-critical signal inversion in high-speed control paths |
| Output Drive Strength | ±8 mA at VCC = 5 V - directly drives multiple 74AHC inputs or small LEDs without buffer |
| ESD Protection | 2 kV HBM, 1 kV CDM - meets industrial IEC 61000-4-2 system-level surge immunity requirements |
| Input Capacitance (CI) | 2.0 pF typical - minimizes loading on preceding drivers in high-frequency clock/data lines |
Pinout & Package
SOT353 (5-pin, 2.2 mm × 1.35 mm × 0.95 mm) surface-mount package with exposed pad not present; moisture sensitivity level (MSL) 1 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NC) | No Connection | Internally unconnected; must remain floating or grounded per layout best practice |
| 2 (A) | Inverting Input | Schmitt-triggered logic input accepting 0–VCC voltage; hysteresis enables clean edge regeneration |
| 3 (GND) | Ground Reference | Return path for all internal currents; requires low-inductance PCB connection to minimize switching noise |
| 4 (Y) | Inverting Output | CMOS push-pull output driving complementary logic; capable of sourcing/sinking ±8 mA |
| 5 (VCC) | Power Supply | Primary supply rail; decoupling capacitor (0.1 µF) required within 3 mm of pin |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger input | Enables reliable signal recovery from slow or noisy waveforms without external hysteresis circuitry |
| Wide supply range (2.0–5.5 V) | Eliminates need for level shifters when interfacing mixed-voltage subsystems (e.g., 3.3 V MCU to 5 V peripheral) |
| Low ICC (≤40 µA) | Reduces quiescent power in always-on monitoring circuits such as battery-backed sensor wake-up logic |
| Green molding compound | Halogen-free, RoHS-compliant package meets IPC-1752A material declaration requirements |
Applications
| Keyboard Debouncing | Signal Level Translation |
|---|---|
Use Scenario: Mechanical keyboard matrix scanning where contact bounce causes false key detection. IC Role / Device Role / Timing Role: Inverting Schmitt trigger converts noisy switch closure into clean digital edge for microcontroller GPIO interrupt. Use Value: Eliminates need for software debounce delays or external RC filters, reducing firmware complexity and latency. | Use Scenario: Interfacing a 5 V legacy sensor output to a 3.3 V microcontroller input. IC Role / Device Role / Timing Role: Logic-level translator using supply-independent hysteresis to ensure noise-immune threshold alignment. Use Value: Maintains signal integrity without bidirectional translators or resistor dividers, preserving rise/fall time symmetry. |
| Waveform Shaping | Reset Signal Conditioning |
Use Scenario: Cleaning up distorted clock or data signals from long PCB traces or cables. IC Role / Device Role / Timing Role: Single-gate inverter with hysteresis reshapes degraded edges into rail-to-rail CMOS-compatible waveforms. Use Value: Restores timing margins in asynchronous communication links (e.g., UART, SPI slave select) without adding propagation delay jitter. | Use Scenario: Debouncing and synchronizing manual reset button inputs in embedded systems. IC Role / Device Role / Timing Role: Input-stage Schmitt trigger ensures monotonic reset assertion/deassertion despite mechanical switch chatter. Use Value: Prevents spurious MCU resets during power-up or user interaction, improving system reliability and field failure rate. |
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 | Lower VCC range (1.65–5.5 V); higher max output drive (±32 mA); slightly lower hysteresis (ΔVT ≈ 0.3–0.9 V) | Better suited for 1.8 V logic domains and higher-current loads; less noise margin at 5 V | Select when interfacing with sub-2 V controllers or driving heavier capacitive loads (>50 pF) |
| 74HC1G14GW,125 | Narrower VCC range (2.0–6.0 V); higher ICC (up to 120 µA); identical pinout but different thermal resistance (θJA = 350 °C/W) | Higher static power limits use in ultra-low-power battery systems; same footprint allows drop-in replacement | Prefer for cost-sensitive consumer designs where thermal performance is secondary to BOM simplification |
Compared with SN74LVC1G14DBVR and 74HC1G14GW,125, the 74AHC1G14SE-7 offers superior noise immunity at 5 V due to wider hysteresis (1.6 V vs. 0.9 V), lower quiescent current (40 µA vs. 120 µA), and optimized thermal resistance for compact SOT353 layouts.
Availability
74AHC1G14SE-7 is available at Aetrix Electronics and suitable for keyboard debouncing, signal level translation, waveform shaping, and reset signal conditioning requiring stable component supply and long-term industrial availability.
Supply support for 74AHC1G14SE-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 China, Taiwan, and the U.S.
The 74AHC logic family targets high-speed, low-power general-purpose digital interface applications, emphasizing wide supply tolerance, robust ESD protection, and compatibility with legacy TTL and modern CMOS systems.
FAQ
What is the maximum recommended operating temperature for continuous use?
The 74AHC1G14SE-7 is rated for continuous operation from −40 °C to +125 °C ambient temperature. Junction temperature must not exceed +150 °C under worst-case power dissipation and board thermal conditions. Derating is required above +85 °C ambient when loaded at ±8 mA.
Can Pin 1 (NC) be connected to ground or left floating?
Pin 1 is internally unconnected and may be left floating or tied to GND per PCB layout best practices. Diodes Incorporated confirms no electrical or reliability impact from either choice, though grounding reduces potential antenna effects in high-frequency environments.
Does this device support mixed-voltage operation between input and output sides?
No - the 74AHC1G14SE-7 uses a single-supply architecture (VCC referenced to GND). Input thresholds scale with VCC, and output swing is rail-to-rail relative to that same VCC. True level translation requires dual-supply or dedicated translator ICs.
Is the SOT353 package lead-free and RoHS compliant?
Yes - the 74AHC1G14SE-7 uses lead-free finish and complies with EU Directive 2002/95/EC (RoHS), including all applicable exemptions. The molding compound is halogen-free ("Green" compound), verified per JEDEC J-STD-020 and IPC-1752A reporting standards.
74AHC1G14SE-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):
- 1 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-353
74AHC1G14SE-7 FAQ
1.How can I place an order for 74AHC1G14SE-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AHC1G14SE-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 74AHC1G14SE-7 reliable?
The price and inventory of 74AHC1G14SE-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHC1G14SE-7 is usually 5 days.
3.What payment methods are accepted for 74AHC1G14SE-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHC1G14SE-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AHC1G14SE-7?
74AHC1G14SE-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AHC1G14SE-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 74AHC1G14SE-7?
For technical support, including 74AHC1G14SE-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHC1G14SE-7 requirements.
6.How does Aetrix verify that 74AHC1G14SE-7 is sourced from the original manufacturer or authorized distributors?
All 74AHC1G14SE-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 74AHC1G14SE-7 meets industry standards.
7.What is the process for return or replacement of 74AHC1G14SE-7?
All 74AHC1G14SE-7 units undergo pre-shipment inspection (PSI). If there is an issue with 74AHC1G14SE-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 74AHC1G14SE-7 part is unused and in its original packaging.
Return procedure for 74AHC1G14SE-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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