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Nexperia USA Inc. 74AHC14D,112
- Part No.:
- 74AHC14D,112
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Gates and Inverters
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
74AHC14D,112.pdf
- Description:
- IC INVERT SCHMITT 6CH 1-INP 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:315
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Product details
Overview
74AHC14D,112 from Nexperia is a hex inverting Schmitt trigger IC with CMOS-level inputs, 2.0–5.5 V supply range, overvoltage-tolerant inputs up to 5.5 V, and operation from –40 °C to +125 °C in SO14 (SOT108-1) package. It provides six independent hysteresis-enabled inverters for noise-immune signal conditioning in mixed-voltage digital interfaces.
For engineers reviewing the 74AHC14D,112 datasheet, 74AHC14D,112 pinout, 74AHC14D,112 application, or 74AHC14D,112 equivalent, this device is selected for robust edge detection, waveform shaping, and level translation where input noise immunity and rail-to-rail compatibility across 2.0–5.5 V systems are required.
Technical Context
This device implements six independent Schmitt-trigger inverters using advanced AHC CMOS technology. Each channel features asymmetric hysteresis (e.g., VT+ = 3.85 V, VT− = 1.65 V at VCC = 5.5 V), enabling reliable switching in noisy environments without external components.
It supports mixed-voltage interfacing via overvoltage-tolerant inputs-accepting up to 5.5 V regardless of VCC-and delivers balanced propagation delays (tpd ≤ 11.0 ns at VCC = 5.5 V, CL = 50 pF) with low dynamic power dissipation (CPD = 10 pF).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage | 2.0 V to 5.5 V - Enables direct interface with 2.5 V, 3.3 V, and 5 V logic domains without level shifters. |
| Input voltage tolerance | Up to 5.5 V - Allows safe connection to higher-voltage signals even when VCC = 2.0 V, supporting voltage translation. |
| Hysteresis voltage (VH) | 0.45–1.6 V - Provides noise margin ≥ 450 mV at VCC = 5.5 V, rejecting transients < 1.6 V peak-to-peak. |
| Propagation delay (tpd) | ≤ 11.0 ns @ VCC = 5.5 V, CL = 50 pF - Ensures timing-critical signal conditioning with sub-12 ns latency per inverter. |
| Output drive strength | ±8.0 mA @ VCC = 4.5 V - Sufficient to drive standard CMOS loads (e.g., 10–15 pF) or multiple 74-series inputs. |
| Operating temperature | –40 °C to +125 °C - Qualified for under-hood automotive, industrial control, and high-reliability embedded applications. |
| ESD protection | HBM > 2000 V, CDM > 1000 V - Reduces risk of handling damage during PCB assembly and field service. |
Pinout & Package
74AHC14D,112 is housed in a plastic small outline package (SO14, SOT108-1) with 14 leads, 3.9 mm body width, and standard 1.27 mm lead pitch. The package is RoHS-compliant and rated for reflow soldering per JEDEC J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 5, 9, 11, 13 | Input (1A–6A) | Six independent Schmitt-trigger inputs; each accepts DC-coupled signals up to 5.5 V regardless of VCC. |
| 2, 4, 6, 8, 10, 12 | Output (1Y–6Y) | Inverted, hysteresis-shaped outputs; each drives CMOS loads with rail-to-rail swing and ±8 mA capability. |
| 7 | GND | Ground reference (0 V); must be connected to system ground plane for stable noise immunity and output levels. |
| 14 | VCC | Positive supply rail; powers all six inverters and defines logic thresholds (VT+, VT− scale with VCC). |
Key Features
| Feature | Design Value |
|---|---|
| Wide supply range | 2.0–5.5 V operation enables single-supply use across legacy 5 V and modern low-voltage systems. |
| Overvoltage-tolerant inputs | Inputs withstand 5.5 V regardless of VCC - eliminates need for external clamping diodes in mixed-voltage interconnects. |
| High noise immunity | Hysteresis ≥ 450 mV at 5.5 V ensures reliable switching in EMI-prone environments like motor control or power supply feedback paths. |
| Low power dissipation | ICC ≤ 40 μA at VCC = 5.5 V and TA = +125 °C - supports always-on sensing and battery-backed subsystems. |
| Thermal ruggedness | Rated for –40 °C to +125 °C ambient - validated for under-hood automotive, industrial PLC I/O, and outdoor telecom equipment. |
Applications
| Motor Control Feedback | Industrial Sensor Interface |
|---|---|
Use Scenario: Conditioning encoder quadrature signals in BLDC motor drives subject to EMI from PWM switching. IC Role / Device Role / Timing Role: Six-channel Schmitt inverter cleans noisy A/B/Z index pulses before FPGA or MCU capture. Use Value: Hysteresis rejects <1.6 V noise spikes while preserving edge timing integrity for precise position tracking. |
Use Scenario: Interfacing analog-output pressure/temperature sensors to microcontroller ADCs with digital enable lines. IC Role / Device Role / Timing Role: Inverts and shapes sensor enable strobes and fault-alert signals with rail-compatible thresholds. Use Value: Overvoltage-tolerant inputs accept 5 V sensor alerts directly into 3.3 V MCU domains without external resistors or translators. |
| Relaxation Oscillator | Power Supply Sequencing |
Use Scenario: Generating low-frequency clock or reset timing in cost-sensitive consumer electronics. IC Role / Device Role / Timing Role: One inverter configured with RC network forms a self-timed oscillator (Fig. 10). Use Value: Eliminates dedicated timer ICs; frequency set by R/C values with <5% drift over temperature due to stable VT±. |
Use Scenario: Controlling power-up order of multi-rail FPGAs or SoCs requiring staggered VCCINT/VCCAUX/VCCIO sequencing. IC Role / Device Role / Timing Role: Inverts and delays enable signals between regulator outputs using cascaded Schmitt stages. Use Value: Built-in hysteresis prevents chatter during slow-rising rails, ensuring monotonic, glitch-free sequencing transitions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar hex inverting Schmitt trigger applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74AHCT14D,112 | TTL-compatible inputs (VIH = 2.0 V min), slightly lower VT+ (1.9 V @ VCC = 4.5 V) and reduced hysteresis (0.4–1.5 V). | Better suited for interfacing legacy 5 V TTL outputs; less tolerant of sub-2 V noise on inputs. | Select when driving from standard 5 V TTL sources and noise immunity requirements are moderate. |
| SN74LV14APWR | Nexperia's pin-compatible LV variant; 1.65–5.5 V supply, lower VT+ (≈1.5 V @ VCC = 3.3 V), CPD = 12 pF. | Optimized for 1.8 V/2.5 V systems; higher input leakage (≤1 μA) and reduced ESD rating (HBM = 2 kV). | Prefer for ultra-low-voltage designs where 2.0 V minimum VCC is not required and cost is critical. |
Compared with 74AHCT14D,112, the 74AHC14D,112 offers superior noise rejection in mixed-voltage systems due to its CMOS-input threshold scaling and wider hysteresis; versus SN74LV14APWR, it delivers tighter thermal stability and higher ESD robustness for industrial deployments.
Availability
74AHC14D,112 is available at Aetrix Electronics and suitable for motor control feedback, industrial sensor interface, relaxation oscillator generation, and power supply sequencing requiring stable component supply across automotive, industrial, and embedded design cycles.
Supply support for 74AHC14D,112 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
Nexperia is a global semiconductor expert focused on high-volume, high-reliability logic, analog, and discrete devices, with leadership in automotive-qualified components and energy-efficient packaging.
The 74AHC14D,112 belongs to Nexperia's AHC logic family, engineered for low-power, high-noise-immunity digital interfacing in demanding industrial and automotive environments where voltage translation and signal integrity are critical.
FAQ
Can 74AHC14D,112 safely interface a 5 V sensor output with a 3.3 V microcontroller?
Yes. Its overvoltage-tolerant inputs accept up to 5.5 V regardless of VCC, allowing direct connection of 5 V sensor outputs to the 74AHC14D,112 powered at 3.3 V. The Schmitt-trigger action then produces clean 0–3.3 V logic swings compatible with 3.3 V MCU inputs, eliminating external level-shifting circuitry.
What is the minimum supply voltage for guaranteed Schmitt-trigger operation?
The 74AHC14D,112 is specified for full functionality down to 2.0 V. At VCC = 2.0 V, VT+ = 1.9 V and VT− = 0.1 V (typical), delivering usable hysteresis (≈1.8 V) and noise margin. Operation below 2.0 V is not characterized and may result in degraded or undefined switching behavior.
Does this device require external pull-up or pull-down resistors on unused inputs?
No. Unused inputs must be tied to VCC or GND to prevent floating states that increase ICC and cause erratic output switching. Internal input protection structures eliminate the need for external resistors, but direct DC termination is mandatory for predictable static current and noise immunity.
How does temperature affect the hysteresis window of 74AHC14D,112?
Hysteresis voltage (VH = VT+ − VT−) remains stable across temperature: at VCC = 5.5 V, VH is 0.45–1.6 V from –40 °C to +125 °C. VT+ and VT− track VCC proportionally, preserving relative noise margin. This ensures consistent noise rejection in automotive under-hood or industrial cabinet environments.
74AHC14D,112 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74AHC
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Logic Type:
- Inverter
- Number of Circuits:
- 6
- 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SO
74AHC14D,112 FAQ
1.How can I place an order for 74AHC14D,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AHC14D,112 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 74AHC14D,112 reliable?
The price and inventory of 74AHC14D,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHC14D,112 is usually 5 days.
3.What payment methods are accepted for 74AHC14D,112?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHC14D,112 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AHC14D,112?
74AHC14D,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AHC14D,112 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 74AHC14D,112?
For technical support, including 74AHC14D,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHC14D,112 requirements.
6.How does Aetrix verify that 74AHC14D,112 is sourced from the original manufacturer or authorized distributors?
All 74AHC14D,112 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 74AHC14D,112 meets industry standards.
7.What is the process for return or replacement of 74AHC14D,112?
All 74AHC14D,112 units undergo pre-shipment inspection (PSI). If there is an issue with 74AHC14D,112, 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 74AHC14D,112 part is unused and in its original packaging.
Return procedure for 74AHC14D,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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