74F14

74F14 Hex Inverter Schmitt Trigger

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74F14 Hex Inverter Schmitt Trigger

March 1988 Revised November 2005

74F14 Hex Inverter Schmitt Trigger
General Description
The 74F14 contains six logic inverters which accept standard TTL input signals and provide standard TTL 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 than conventional inverters. Each circuit contains a Schmitt trigger followed by a Darlington level shifter and a phase splitter driving a TTL totem-pole output. The Schmitt trigger uses positive feed back to effectively speed-up slow input transition, and provide different input threshold voltages for positive and negative-going transitions. This hysteresis between the positive-going and negative-going input thresholds (typically 800 mV) is determined internally by resistor ratios and is essentially insensitive to temperature and supply voltage variations.

Ordering Code:
Order Number 74F14SC 74F14SJ 74F14PC Package Number M14A M14D N14A Package Description 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow Pb-Free 14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide

Devices also available in Tape and Reel. Specify by appending the suffix letter "X" to the ordering code.

Logic Symbol
IEEE/IEC

Connection Diagram

Unit Loading/Fan Out
U.L. Pin Names Description In On Input Output 1.0/1.0 50/33.3 Input IIH/IIL HIGH/LOW Output IOH/IOL 20 A/-0.6 mA

Function Table
Input A L H
H HIGH Voltage Level L LOW Voltage Level

Output O H L

-1 mA/20 mA

2005 Fairchild Semiconductor Corporation

DS009461

www.fairchildsemi.com