SN74AHCT14NE4 Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
SN74AHCT14NE4 is a hex Schmitt-trigger inverter from Texas Instruments in the AHCT logic family, featuring 6 independent Schmitt-trigger inverting channels in a 14-pin PDIP package. Operating from a 4.5 V to 5.5 V supply, it provides hysteresis for noise-immune signal conditioning of slow or noisy input waveforms. Designed for waveform squaring, debouncing, and level translation in digital logic and microcontroller applications.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 14
- Lifecycle
- OBSOLETE
- Datasheet
- SN74AHCT14NE4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SN74AHCT14NE4?
- 6 independent Schmitt-trigger inverter channels with input hysteresis for noise immunity
- AHCT logic family operating from 4.5 V to 5 V supply compatible with TTL-level inputs
- Maximum output low current (IOL) of 8 mA for driving moderate logic loads
- Load capacitance rating of 50 pF for standard CMOS and TTL gate interconnects
- RoHS-compliant lead-free 14-pin PDIP through-hole package for prototyping
- Waveform squaring and signal conditioning without external RC filter networks
What is SN74AHCT14NE4 used for?
SN74AHCT14NE4 is used in digital logic boards for conditioning slow-edge, noisy, or mechanically-bounced input signals such as pushbuttons, reed switches, and sensor outputs before feeding microcontrollers or FPGA inputs. Its Schmitt-trigger hysteresis also makes it suitable for RC oscillator circuits and power-on reset signal conditioning in 5 V embedded systems.
What are the specifications of SN74AHCT14NE4?
| Pbfree Code | Yes |
| YTEOL | 0 |
| Family | AHCT/VHCT/VT |
| JESD-30 Code | R-PDIP-T14 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | INVERTER |
| Max I(ol) | 0.008A |
| Number of Functions | 6 |
| Number of Inputs | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP14,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Packing Method | TUBE |
| Prop. Delay@Nom-Sup | 9ns |
| Propagation Delay (tpd) | 9ns |
| Qualification Status | Not Qualified |
| Schmitt Trigger | YES |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 4.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | NO |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8542.39.00.60 |
Where can I find the SN74AHCT14NE4 datasheet?
SN74AHCT14NE4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for SN74AHCT14NE4?
Compatible alternatives and drop-in replacements for SN74AHCT14NE4:
Frequently Asked Questions
Why is SN74AHCT14NE4 preferred over a standard CMOS inverter for conditioning slow-rise sensor signals?
SN74AHCT14NE4 has a Schmitt-trigger input with built-in hysteresis, typically 0.5 V to 1.5 V at 5 V supply, which prevents multiple output transitions when an input signal crosses the logic threshold slowly or with superimposed noise. A standard CMOS inverter without hysteresis can oscillate or chatter under the same conditions, causing false digital edges downstream.
What supply voltage and input compatibility does SN74AHCT14NE4 require for integration with TTL-level logic?
SN74AHCT14NE4 operates from a 4.5 V to 5.5 V supply and accepts TTL-compatible input levels, with a logic high threshold near 2 V. This makes it directly compatible with 5 V TTL and CMOS logic families without level-shifting, and its AHCT family also accepts 3.3 V logic high inputs from newer mixed-voltage systems.
How many logic channels does SN74AHCT14NE4 pack into a 14-pin DIP body and what is the drive strength?
SN74AHCT14NE4 contains 6 Schmitt-trigger inverter channels in a 14-pin PDIP package with a maximum output low current (IOL) of 8 mA per channel. Six channels sharing a single supply and ground pair allow designers to condition up to 6 independent signal lines with one IC, reducing BOM count in multi-channel signal-cleaning stages.
For a redesign moving from through-hole to SMT assembly, which SN74AHCT14 variant replaces SN74AHCT14NE4?
The SN74AHCT14DR in SOIC-14 or SN74AHCT14PWR in TSSOP-14 are pin-compatible SMT versions of the same 6-channel Schmitt-trigger inverter with identical electrical ratings at 4.5 V to 5.5 V supply and 8 mA IOL, enabling a direct functional replacement while enabling automated reflow assembly in volume production.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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