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Diodes Incorporated 74AHC1G14W5-7
- Part No.:
- 74AHC1G14W5-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Gates and Inverters
- Package:
- SC-74A, SOT-753
- Datasheet:
-
74AHC1G14W5-7.pdf
- Description:
- IC INVERT SCHMITT 1CH 1INP SOT25
- Quantity:
- Payment:
- Shipping:
Inventory:19,430
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Product details
Overview
74AHC1G14W5-7 from Diodes Incorporated is a single-channel Schmitt-trigger inverter IC in SOT25 package, operating from 2.0V to 5.5V supply, delivering ±8 mA output drive at 5.0V, with input hysteresis (ΔVT = 0.5–1.6 V) and CMOS low-power consumption. It functions as a noise-immune signal conditioner in digital interface paths for microcontroller reset debouncing, clock waveform shaping, and sensor signal cleanup.
For engineers reviewing the 74AHC1G14W5-7 datasheet, 74AHC1G14W5-7 pinout, 74AHC1G14W5-7 application, or 74AHC1G14W5-7 equivalent, key selection criteria include input threshold voltages (VT+ = 3.85 V, VT− = 1.65 V @ 5.5V), propagation delay (tpd = 3.2–11.0 ns), ESD robustness (2 kV HBM), latch-up immunity (>100 mA), and SOT25 thermal resistance (θJA = 195 °C/W).
Technical Context
This device implements a single inverting logic gate with Schmitt-trigger input thresholds, enabling reliable switching in presence of slow-rising or noisy signals. Its push-pull CMOS output drives capacitive loads up to 50 pF with sub-12 ns propagation delay across −40°C to +125°C.
The input hysteresis (0.5–1.6 V depending on VCC) ensures stable transitions without oscillation during signal slew, while rail-to-rail output swing (VOH ≥ 3.94 V, VOL ≤ 0.55 V @ 4.5V/8mA) supports interoperability with 3.3V and 5V logic families.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.0 V to 5.5 V - Enables direct interfacing with 3.3 V and 5 V systems without level shifters. |
| Input Hysteresis (ΔVT) | 0.5–1.6 V - Provides noise margin against EMI and slow-edge interference in industrial sensor lines. |
| Propagation Delay (tpd) | 3.2–11.0 ns @ CL=15–50 pF - Supports >80 MHz toggle rates in clean signal conditioning paths. |
| Output Drive Strength | ±8 mA @ 5.0 V - Sufficient to drive multiple 74AHC inputs or small LED indicators directly. |
| ESD Protection | 2 kV HBM, 1 kV CDM - Meets IEC 61000-4-2 Level 3 system-level ESD requirements. |
| Operating Temperature | −40°C to +125°C - Qualified for under-hood automotive and industrial control environments. |
| Power Dissipation Capacitance | 10 pF @ 1 MHz - Predicts dynamic power draw <1 µW at low-frequency signal conditioning use. |
Pinout & Package
SOT25 (5-pin SC-74A) package with exposed pad not electrically connected; compact 2.8 mm × 1.6 mm footprint, 1.1 mm height, JEDEC-compliant lead finish and RoHS-compliant "green" molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NC) | No Connection | Unbonded die pad; must remain floating or grounded per layout best practice to avoid parasitic coupling. |
| 2 (A) | Inverting Input | Schmitt-trigger input with VT+ = 3.85 V / VT− = 1.65 V @ VCC = 5.5 V; accepts 0–5.5 V logic levels. |
| 3 (GND) | Ground Reference | Primary return path for output current and internal bias; requires low-inductance connection to PCB ground plane. |
| 4 (Y) | Inverting Output | Push-pull CMOS output capable of sourcing/sinking ±8 mA; rail-to-rail swing with defined VOH/VOL limits. |
| 5 (VCC) | Supply Voltage | Power input for core logic and output drivers; requires local 100 nF ceramic decoupling within 5 mm. |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger input hysteresis | Enables reliable edge detection on slow-rising signals (e.g., mechanical switch bounce, thermistor outputs) without external RC filtering. |
| Wide VCC range (2.0–5.5 V) | Eliminates need for separate voltage translators when interfacing mixed-voltage subsystems (e.g., 3.3 V MCU to 5 V legacy peripherals). |
| ±8 mA output drive @ 5 V | Drives up to 10 standard 74AHC inputs or small-signal LEDs without external buffer stages. |
| 2 kV HBM ESD rating | Reduces risk of field failure during handling and board assembly in non-ESD-controlled environments. |
| Latch-up immunity >100 mA | Ensures robust operation during transient overvoltage events on I/O lines in industrial control cabinets. |
Applications
| Microcontroller Reset Conditioning | Industrial Sensor Interface |
|---|---|
Use Scenario: Debouncing and noise filtering of manual reset buttons or power-on-reset circuits feeding ARM Cortex-M or PIC microcontrollers. IC Role / Device Role / Timing Role: Inverting Schmitt trigger converts slow, noisy button transitions into clean, monotonic reset pulses with controlled rise/fall times. Use Value: Prevents spurious resets caused by contact bounce or conducted EMI, eliminating firmware-level debounce overhead and improving system reliability. | Use Scenario: Signal conditioning of analog-output sensors (e.g., temperature, pressure) before ADC sampling in PLC I/O modules. IC Role / Device Role / Timing Role: Converts slowly varying analog comparator outputs or open-collector sensor alerts into sharp digital edges compatible with FPGA interrupt inputs. Use Value: Eliminates false triggers from sensor cable crosstalk or supply ripple, enabling deterministic timing for time-critical alarm responses. |
| Digital Clock Waveform Shaping | Legacy Peripheral Interface |
Use Scenario: Cleaning up distorted or attenuated clock signals from crystal oscillators or long PCB traces feeding FPGA configuration clocks or ADC sampling clocks. IC Role / Device Role / Timing Role: Schmitt-trigger inverter restores degraded clock edges to full rail-to-rail swing and consistent duty cycle. Use Value: Reduces jitter accumulation and setup/hold violations in high-speed data capture paths, improving bit error rate in serial interfaces. | Use Scenario: Level translation and signal inversion between modern 3.3 V SoCs and legacy 5 V parallel peripherals (e.g., dot-matrix displays, stepper motor controllers). IC Role / Device Role / Timing Role: Acts as unidirectional logic inverter with rail-compatible input thresholds and output swing across both voltage domains. Use Value: Avoids dedicated level-shifter ICs or resistor-divider networks, reducing BOM count and board area in cost-sensitive industrial HMI designs. |
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 | VCC range 1.65–5.5 V; lower VT+ (2.8 V @ 5 V); 32 mA drive; higher ICC (10 µA typ) | Better suited for ultra-low-voltage 1.8 V systems; higher drive supports heavier capacitive loads | Select when interfacing with 1.8 V logic or driving >30 pF traces; verify hysteresis margin meets noise immunity needs |
| MC74VHC1G14DTT1G | VCC range 2.0–5.5 V; identical pinout; slightly lower hysteresis (ΔVT = 0.4–1.5 V); 8 mA drive; same SOT23-5 package | Drop-in replacement with minor threshold variation; qualified for automotive AEC-Q100 Grade 1 | Prefer for automotive applications requiring AEC-Q100 qualification; otherwise functionally interchangeable |
Compared with SN74LVC1G14DBVR and MC74VHC1G14DTT1G, the 74AHC1G14W5-7 offers tighter hysteresis control at 5.5 V (ΔVT = 0.5–1.6 V), lower quiescent current (1 µA typ), and optimized thermal performance in SOT25 (θJA = 195 °C/W), making it ideal for space-constrained industrial signal conditioning where noise margin and power efficiency are prioritized.
Availability
74AHC1G14W5-7 is available at Aetrix Electronics and suitable for industrial control panels, automotive body electronics, and consumer audio/video equipment requiring stable component supply and long-term production continuity.
Supply support for 74AHC1G14W5-7 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 industrial, computing, and consumer markets.
The 74AHC logic family targets low-power, wide-supply digital interface applications, emphasizing noise immunity, rail compatibility, and robustness in harsh electrical environments.
FAQ
What is the maximum recommended capacitive load for 74AHC1G14W5-7?
The datasheet specifies switching characteristics up to 50 pF (CL = 50 pF), with tpd increasing from 4.6 ns to 13.5 ns at 5 V. Driving loads beyond 50 pF risks excessive propagation delay, reduced noise margin, and potential output stage overheating due to increased dynamic current. For >50 pF, add a series resistor or buffer stage.
Can Pin 1 (NC) be connected to GND or VCC?
Pin 1 is internally unconnected and must remain floating per Diodes Incorporated design guidance. Connecting it to GND or VCC introduces no functional benefit and may increase parasitic capacitance or coupling noise into adjacent pins. PCB layout should treat it as an isolated copper island or omit metal under the pad.
Does 74AHC1G14W5-7 support 1.8 V operation?
No. The absolute minimum VCC is 2.0 V per Absolute Maximum Ratings, and Recommended Operating Conditions specify VCC ≥ 2.0 V. At 1.8 V, the device fails to meet guaranteed VOH/VOL, propagation delay, or hysteresis specifications; use SN74LVC1G14 instead for true 1.8 V compatibility.
How does the Schmitt-trigger action improve noise immunity compared to a standard inverter?
Unlike standard inverters with a single threshold (~VCC/2), the 74AHC1G14W5-7 uses two distinct thresholds (VT+ and VT−) separated by ΔVT. This hysteresis prevents multiple output transitions when input voltage lingers near the switching point due to noise or slow edges-ensuring one clean edge per input event, critical for debouncing and sensor interfacing.
74AHC1G14W5-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- 74AHC
- 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:
- 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-25
74AHC1G14W5-7 FAQ
1.How can I place an order for 74AHC1G14W5-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AHC1G14W5-7 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 74AHC1G14W5-7 reliable?
The price and inventory of 74AHC1G14W5-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHC1G14W5-7 is usually 5 days.
3.What payment methods are accepted for 74AHC1G14W5-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHC1G14W5-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AHC1G14W5-7?
74AHC1G14W5-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AHC1G14W5-7 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 74AHC1G14W5-7?
For technical support, including 74AHC1G14W5-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHC1G14W5-7 requirements.
6.How does Aetrix verify that 74AHC1G14W5-7 is sourced from the original manufacturer or authorized distributors?
All 74AHC1G14W5-7 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 74AHC1G14W5-7 meets industry standards.
7.What is the process for return or replacement of 74AHC1G14W5-7?
All 74AHC1G14W5-7 units undergo pre-shipment inspection (PSI). If there is an issue with 74AHC1G14W5-7, 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 74AHC1G14W5-7 part is unused and in its original packaging.
Return procedure for 74AHC1G14W5-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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