CD74AC14EE4 Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
The CD74AC14EE4 is a hex Schmitt-trigger inverter in the high-speed AC CMOS logic family, housed in a 14-pin PDIP package. It provides 6 independent inverting channels with hysteresis for noise-immune signal conditioning, 24 mA sink current, and 50 pF load capacity. Available worldwide for robust digital logic interfacing.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- CD74AC14EE4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 6-channel hex Schmitt-trigger inverter with built-in hysteresis for noise-immune edge conditioning in AC CMOS
- 24 mA output sink current per channel enabling direct drive of LEDs and logic bus loads without external buffers
- RoHS-compliant 14-pin PDIP package with 50 pF load capacitance for through-hole prototyping and production boards
Applications
The CD74AC14EE4 is used in digital systems where slow-rising or noisy input signals must be converted to clean logic transitions, such as crystal oscillator buffers and RC-coupled clock inputs. Its Schmitt-trigger hysteresis prevents multiple output transitions caused by input signal bounce, making it ideal for pushbutton debouncing and sensor output conditioning. The high 24 mA drive strength supports direct LED indicators and bus termination in industrial and embedded control designs.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Family | AC |
| JESD-30 Code | R-PDIP-T14 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | INVERTER |
| Max I(ol) | 0.024A |
| 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 |
| Power Supply Current-Max (ICC) | 0.08mA |
| Prop. Delay@Nom-Sup | 10.5ns |
| Propagation Delay (tpd) | 10.5ns |
| Qualification Status | Not Qualified |
| Schmitt Trigger | YES |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 1.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | NO |
| Technology | CMOS |
| Temperature Grade | MILITARY |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| 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 |
| Country of Origin | Malaysia, Mexico |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What output drive current does the CD74AC14EE4 provide per channel, and what loads can it directly drive?
Each of the 6 Schmitt-trigger inverter channels in the CD74AC14EE4 can sink up to 24 mA of output current. This drive strength is sufficient to directly drive standard LEDs, TTL logic inputs, and short PCB bus lines without needing external buffer transistors, simplifying the overall design at 50 pF load capacitance.
How does the Schmitt-trigger input hysteresis of the CD74AC14EE4 improve signal integrity in noisy environments?
The Schmitt-trigger inputs of the CD74AC14EE4 incorporate built-in hysteresis, meaning the threshold for switching from low-to-high differs from the high-to-low switching threshold. This voltage gap prevents output chatter when the input signal rises or falls slowly, such as with RC time constant circuits or noisy sensor outputs in industrial environments.
For which design scenarios is the CD74AC14EE4 preferred over a standard 74HC04 hex inverter?
The CD74AC14EE4 is preferred over a standard 74HC04 when the input signal has slow edges, excessive noise, or undefined transition regions, since the Schmitt-trigger hysteresis guarantees a single clean output transition even under these conditions. Additionally, the AC family's 24 mA sink current outperforms the HC family's 4 mA, making it better for driving heavier loads at 50 pF or more.
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