The Nexperia 74HC14D is a hex inverting Schmitt-trigger logic device containing six independent inverters with Schmitt-trigger inputs. The hysteresis at each input allows slowly changing or noisy signals to be converted into clean, sharply defined digital outputs, making the device suitable for waveform shaping, pulse conditioning, and oscillator circuits.
The 74HC14D belongs to the high-speed CMOS 74HC logic family and operates from a 2.0V to 6.0V supply. Nexperia specifies a CMOS switching level, approximately ±5.2mA output drive capability, and a maximum operating frequency of about 36MHz for the 74HC14 family.
Input clamp diodes are integrated, allowing interfaces to voltages above VCC when appropriate current-limiting resistors are used. The Schmitt-trigger inputs also support unlimited input rise and fall times, which helps improve immunity to slow edges and noisy signals.
The 74HC14D is specified over an ambient temperature range of -40°C to +125°C and is supplied in a 14-lead SO14 / SOT108-1 surface-mount package. The package has a 1.27mm lead pitch and body dimensions of approximately 8.65 × 3.9 × 1.75mm. Nexperia currently lists the device as Production.
Key Features:
- Manufacturer: Nexperia
- Part Number: 74HC14D
- Family: 74HC
- Device Type: Inverting Schmitt Trigger
- Logic Function: Inverter / NOT
- Number of Channels: 6
- Inputs per Channel: 1
- Input Type: Schmitt Trigger
- Logic Level: CMOS
- Supply Voltage: 2.0V to 6.0V
- Output Drive Capability: ±5.2mA
- Maximum Operating Frequency: Approx. 36MHz
- Input Clamp Diodes: Yes
- Unlimited Input Rise/Fall Times
- High Noise Immunity
- Latch-Up Performance: >100mA
- HBM ESD Protection: >2000V
- CDM ESD Protection: >1000V
- Operating Temperature: -40°C to +125°C
- Package: SO14 / SOT108-1
- Pin Count: 14
- Lead Pitch: 1.27mm
- Package Size: Approx. 8.65 × 3.9 × 1.75mm
- Mounting Type: Surface Mount
- MSL: Level 1
- RoHS / REACH Compliant
- Product Status: Production.
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