The 74HC14 is a Hex Schmitt Trigger Inverter IC and it belongs to the High Speed CMOS (HC) logic IC family. IC contains six independent “NOT gates” with Schmitt trigger inputs. This IC is an ideal choice for applications that require noise immunity, waveform shaping and signal conditioning. This article describes the Pinout, Specifications and Equivalent for Replacement.
What is 74HC14?
The 74HC14 IC is designed to converting the slow or noisy input signals into clean and sharp digital outputs. Due to its built in hysteresis, it performs better than a standard inverter when dealing with switch bounce, long signal lines or analog like inputs.
It is pin compatible with popular logic ICs such as 74LS14 and 74HC04. so you can easily replace with this IC.
74HC14 Pinout
Features of 74HC14
- Six independent Schmitt trigger inverters
- High noise immunity
- Works with CMOS, TTL and NMOS logic
- Cleans up slow rising and falling signals
- Low power consumption
- Wide operating voltage range
- Direct replacement for LS series devices
Specifications
- Logic Type: Hex Schmitt-Trigger Inverter
- Operating Voltage (VCC): 2.0V to 6.0V
- Input Type: Schmitt Trigger
- Output Drive: Up to 10 LSTTL loads
- Maximum Input Current: +/-1 µA
- Propagation Delay: ~15 ns at 4.5V
- Input Capacitance: 10 pF
- Operating Temperature: −55°C to +125°C
- ESD Protection: +/-2000 V (HBM)
- Package Types: DIP-14, SOIC-14, TSSOP-14
Equivalent IC for Replacement
| IC Number | Description |
|---|---|
| 74LS14 | TTL Schmitt-Trigger Inverter |
| 74HCT14 | TTL-compatible CMOS version |
| 74HC04 | Hex Inverter (no Schmitt trigger) |
| CD40106 | CMOS Hex Schmitt-Trigger Inverter |
| SN74HC14 | Texas Instruments equivalent |
| MC74HC14 | ON Semiconductor equivalent |
Difference between 74HC14 and 74HC04
| Feature | 74HC14 | 74HC04 |
|---|---|---|
| Input Type | Schmitt Trigger | Standard CMOS |
| Noise Immunity | High | Low |
| Suitable for Slow Signals | Yes | No |
| Pin Compatibility | Yes | Yes |
