Motorola MC74AC14 MC74ACT14 Data Handbook / Manual
Summary
The MC74AC14/74ACT14 is a robust Schmitt Trigger Inverter IC designed for superior signal conditioning in digital electronics. Comprising six reliable logic inverters, it effectively converts slowly changing or noisy analog signals into sharp, jitter-free CMOS output levels, featuring enhanced noise margins and high hysteresis stability. This manual provides comprehensive technical data sheets, including detailed DC/AC characteristics, maximum ratings, operating conditions, and propagation delays necessary for design engineers and electronic professionals integrating accurate, stable logic circuitry components.
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HEX INVERTER SCHMITT TRIGGER
The MC74AC14/74ACT14 contains six logic inverters which accept standard CMOS Input signals (TTL levels for MC74ACT14) and provide standard CMOS output levels. They are capable of transforming slowly changing input signals into sharply defined, jitter-free output signals. In addition, they have a greater noise margin then conventional inverters. The MC74AC14/74ACT14 has hysteresis between the positive-going and negative-going input thresholds (typically 1.0 V) which is determined internally by transistor ratios and is essentially insensitive to temperature and supply voltage variations. Schmitt Trigger Inputs Outputs Source/Sink 24 m A
N SUFFIX
′ACT14 Has TTL Compatible Inputs CASE 646-06
PLASTIC
FUNCTION TABLE Input Output
D SUFFIX CASE 751A-03 PLASTIC
MAXIMUM RATINGS* Symbol Parameter Value Unit VCC DC Supply Voltage (Referenced to GND) –0.5 to +7.0 Vin DC Input Voltage (Referenced to GND) –0.5 to VCC +0.5 Vout DC Output Voltage (Referenced to GND) –0.5 to VCC +0.5 Iin DC Input Current, per Pin ±20 m A Iout DC Output Sink/Source Current, per Pin ±50 m A ICC DC VCC or GND Current per Output Pin ±50 m A Tstg Storage Temperature –65 to +150 °C Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the Recommended Operating Conditions.
FACT DATA 5-1
Page Summary Contents For Motorola MC74AC14 MC74ACT14 Data Handbook / Manual
Manual Details
| Brand | Motorola |
|---|---|
| Pages | 5 |
| File Size | 129.57 KB |
| Published | June 01, 2026 |
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Frequently Asked Questions
What kind of signals can the MC74AC14 accept?
It accepts standard CMOS Input signals, including TTL levels for the MC74ACT14, and can transform slowly changing inputs into jitter-free outputs.
What is the typical operating temperature range?
The recommended operating ambient temperature range is from -40°C to 85°C.
How does Schmitt triggering benefit input signals?
Schmitt triggers calculate hysteresis between positive and negative going thresholds (typically 1.0V), making them insensitive to temperature and supply voltage variations.
What are the recommended operating voltages?
The suggested operational range for VCC is typically from 5.0V to 6.0V, but the minimum and maximum ratings allow operation between -0.5V and +7.0V.