CD74HC14E Texas Instruments In Stock
CD74HC14E is a hex Schmitt-trigger inverter IC by Texas Instruments with 6 independent channels. Key specs: 2 V to 6 V supply range, guaranteed hysteresis on all inputs, 14-pin PDIP package. From $0.29, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- —
- Lifecycle
- ACTIVE
- Datasheet
- N/A
- Price
- From $0.2628(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of CD74HC14E?
- Hex Schmitt-trigger inverter with 6 independent channels providing guaranteed input hysteresis for clean switching on noisy or slow-edge signals
- Wide 2 V to 6 V operating voltage range with CMOS-compatible outputs delivering up to 25 mA drive current per channel
- 14-pin PDIP through-hole package enabling easy prototyping and breadboard use alongside surface-mount SOIC and TSSOP variants
What is CD74HC14E used for?
The CD74HC14E is widely used in microcontroller-based designs for debouncing mechanical switches and push buttons, converting the slow bouncy transitions into clean digital edges. It also serves as a waveform shaper in oscillator circuits, converting sine or triangular waveforms into well-defined square waves. Additionally, the device acts as a signal buffer and level converter in systems where noisy sensor outputs must drive logic gates or interrupt inputs reliably.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
What are equivalent replacements for CD74HC14E?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What supply voltage range and output drive current does the CD74HC14E support?
The CD74HC14E operates from 2 V to 6 V and delivers output currents up to 25 mA per channel at 4.5 V supply, with propagation delays as low as 9 ns at 5 V. This makes it compatible with both 3.3 V and 5 V logic systems commonly used in embedded designs.
How does the Schmitt-trigger hysteresis in the CD74HC14E improve signal quality?
The CD74HC14E provides guaranteed hysteresis of approximately 0.9 V at a 5 V supply, creating a deadband between the positive-going and negative-going switching thresholds. This hysteresis eliminates multiple transitions caused by slowly rising signals or switch bounce, converting noisy analog-like edges into clean single-transition digital signals.
Which package options are available for the CD74HC14E, and how do they differ?
The CD74HC14E comes in a 14-pin PDIP through-hole package, while sibling variants such as CD74HC14M and CD74HC14PW offer 14-pin SOIC and TSSOP surface-mount footprints. The PDIP suits prototype breadboards and through-hole assembly, whereas the SOIC saves approximately 50 % board area in production SMT layouts.
Can the CD74HC14E be used in RC oscillator circuits, and what component values are typical?
Yes, one inverter stage of the CD74HC14E combined with an external resistor of 10 kOhm to 1 MOhm and a capacitor of 100 pF to 10 nF forms a simple relaxation oscillator. The Schmitt-trigger thresholds set the charge and discharge limits, producing square-wave frequencies from roughly 1 kHz to several MHz depending on the RC time constant.
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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.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.9375 | $0.94 |
| 18+ | $0.6857 | $12.34 |
| 25+ | $0.3750 | $9.38 |
| 100+ | $0.3058 | $30.58 |
| 1000+ | $0.2913 | $291.30 |
| 10000+ | $0.2628 | $2628.00 |
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