CD54HC14F Texas Instruments Integrated Circuit (Ceramic Dual-In-Line Packages) In Stock
Texas Instruments CD54HC14F is a hex Schmitt-trigger inverter in the HC CMOS family, housed in a ceramic DIP-14 package. Provides 6 independent inverting channels with hysteresis for reliable noise-immune signal conditioning from 2 V to 6 V supply. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Ceramic Dual-In-Line Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- CD54HC14F Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $5.1366(MOQ 1)
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of CD54HC14F?
- 6 independent Schmitt-trigger inverter channels with hysteresis provide clean digital output from slow, noisy, or bouncing input signals
- HC CMOS technology supports 2 V to 6 V supply operation with 25 mA output drive current at 4.5 V for direct LED or bus driving
- Ceramic DIP-14 package offers enhanced reliability and temperature stability for military, aerospace, and harsh-environment applications up to 125°C
What is CD54HC14F used for?
The CD54HC14F is used in digital signal conditioning circuits where input signals have slow rise times, noise, or contact bounce that would cause glitching in standard logic gates, such as mechanical switch debouncing and crystal oscillator startup circuits. It is commonly employed in legacy through-hole board designs and military-grade systems where the ceramic DIP-14 package provides superior moisture resistance and thermal stability compared to plastic SOIC alternatives. Its 6-channel configuration also makes it suitable for multi-line level translation and signal fanout tasks in 5 V logic systems.
What are the specifications of CD54HC14F?
| Pbfree Code | Yes |
| YTEOL | 15 |
| Family | HC/UH |
| JESD-30 Code | R-GDIP-T14 |
| JESD-609 Code | e0 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | INVERTER |
| Max I(ol) | 0.0052A |
| Number of Functions | 6 |
| Number of Inputs | 1 |
| Package Body Material | CERAMIC, GLASS-SEALED |
| Package Equivalence Code | DIP14,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Packing Method | TUBE |
| Power Supply Current-Max (ICC) | 0.02mA |
| Prop. Delay@Nom-Sup | 41ns |
| Propagation Delay (tpd) | 205ns |
| Qualification Status | Not Qualified |
| Schmitt Trigger | YES |
| Supply Voltage-Max (Vsup) | 6V |
| Supply Voltage-Min (Vsup) | 2V |
| Supply Voltage-Nom (Vsup) | 4.5V |
| Surface Mount | NO |
| Technology | CMOS |
| Temperature Grade | MILITARY |
| Terminal Finish | Tin/Lead (Sn/Pb) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Package | Ceramic Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Where can I find the CD54HC14F datasheet?
CD54HC14F Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for CD54HC14F?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What hysteresis voltage does CD54HC14F provide and how does it prevent oscillation on noisy inputs?
The CD54HC14F provides a typical hysteresis voltage of 0.9 V at a 4.5 V supply, with minimum guaranteed hysteresis of 0.7 V. This means an input signal must cross both the positive threshold (VT+ ≈ 2.4 V) and negative threshold (VT- ≈ 1.5 V) before the output switches, preventing multiple output transitions from noise spikes smaller than 0.9 V on slowly changing input lines.
For a 5 V logic system, how many outputs can CD54HC14F drive simultaneously at full IOL?
Each of the 6 inverter channels on the CD54HC14F sinks up to 5.2 mA (IOL = 0.0052 A) at a VOL of 0.1 V with a 4.5 V supply, sufficient to directly drive one standard TTL input or a 680-ohm pull-up resistor to 5 V. All 6 channels can operate simultaneously, giving the device a total maximum sink current of approximately 31 mA without exceeding package power limits at 25°C ambient.
Why would CD54HC14F be chosen over the SN74HC14 for a space or avionics application?
The CD54HC14F uses a ceramic DIP-14 package rated to -55°C to +125°C and manufactured to military-grade reliability screening, whereas the SN74HC14 is available in plastic packages with a commercial 0°C to 70°C or industrial -40°C to 85°C rating. The ceramic package resists moisture ingress and thermal cycling failures, making the CD54HC14F mandatory in MIL-STD-883 qualified designs where plastic-encapsulated devices are not permitted.
Can CD54HC14F be used to debounce mechanical switches in a 3.3 V microcontroller input stage?
Yes, the CD54HC14F operates from 2 V to 6 V supply, so it functions at 3.3 V with a typical hysteresis of about 0.6 V. To debounce a mechanical switch, add a 10 kohm resistor and 100 nF capacitor RC network at each input to slow the bounce envelope below the 0.6 V hysteresis band, then route the clean output to the 3.3 V MCU input. The 6 channels cover 6 independent switch inputs in a single DIP-14 package.
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Why Buy from FindMyChip
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+ | $5.1366 | $5.14 |
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