Fairchild 74VHC14 Data Handbook
Summary
The VHC14 is a high-speed CMOS Hex Schmitt Inverter designed for robust signal conditioning and reliable interfacing in mixed-voltage systems (e.g., 5V to 3V). Featuring adjustable hysteresis thresholds, superior noise immunity, and built-in input protection (0V to 7V), it generates sharply defined, jitter-free output signals. This datasheet provides detailed electrical specifications, operating ratings, pin configurations, and various surface-mount packages for engineers requiring stable signal processing.
Page 1 Text Content
74VHC14 Hex Schmitt Inverter General Description Features The VHC14 is an advanced high speed CMOS Hex High Speed: t PD = 5.5 ns (typ) at VCC = 5V Schmitt Inverter fabricated with silicon gate CMOS technol-
Low power dissipation: ICC = 2 μA (Max) at TA = 25°C
ogy. It achieves the high speed operation similar to equiva-
lent Bipolar Schottky TTL while maintaining the CMOS low High noise immunity: VNIH = VNIL = 28% VCC (Min)
power dissipation. Pin configuration and function are the Power down protection is provided on all inputs same as the VHC04 but the inputs have hysteresis
Low noise: VOLP = 0.8V (Max)
between the positive-going and negative-going input
thresholds, which are capable of transforming slowly Pin and function compatible with 74HC14
changing input signals into sharply defined, jitter-free out- put signals, thus providing greater noise margin than con- ventional inverters. An input protection circuit ensures that 0V to 7V can be applied to the input pins without regard to the supply volt- age. This device can be used to interface 5V to 3V systems and two supply systems such as battery back up. This cir- cuit prevents device destruction due to mismatched supply and input voltages.
Ordering Code:
Package
Order Number Package Description
Number
74VHC14M M14A 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow (Note 1) 74VHC14MX_NL M14A Pb-Free 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" (Note 2) Narrow 74VHC14SJ M14D Pb-Free 14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide (Note 1) 74VHC14MTC MTC14 14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide (Note 1) 74VHC14MTC_NL MTC14 Pb-Free 14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, (Note 3) 4.4mm Wide 74VHC14MTCX_NL MTC14 Pb-Free 14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, (Note 2) 4.4mm Wide 74VHC14N N14A 14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide (Obsolete) Pb-Free package per JEDEC J-STD-020B. Note 1: Surface mount packages are also available on Tape and Reel. Specify by appending the suffix letter X to the ordering code. Note 2: _NL indicates Pb-Free product (per JEDEC J-STD-020B). Device is available in Tape and Reel only. Note 3: _NL indicates Pb-Free product (per JEDEC J-STD-020B).
© 2010 Fairchild Semiconductor Corporation www.fairchildsemi.com
Page Summary Contents For Fairchild 74VHC14 Data Handbook
Manual Details
| Brand | Fairchild |
|---|---|
| Pages | 9 |
| File Size | 906.95 KB |
| Published | July 22, 2026 |
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Frequently Asked Questions
What is the maximum input voltage range?
The device can handle an input voltage between -0.5V and +7.0V.
Does this device protect against mismatched supply voltages?
Yes, it includes an input protection circuit that prevents device destruction when applied to inputs without regard to the supply voltage.
What is the typical operating current draw?
The quiescent supply current (I) at 5.5V is typically 2.0 μA.
How quickly does this Schmitt Inverter operate?
It has a high speed of t = 5.5 ns (typical) when supplied at 5V.