© 2005 Fairchild Semiconductor Corporation

DS010911

www.fairchildsemi.com

March 1991

Revised February 2005

74ACTQ14

Quiet Series

¥ Hex Inverter with Schmitt Trigger Input

General Description

The ACTQ14 contains six inverter gates each with a

Schmitt trigger input. 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.

The ACTQ14 utilizes Fairchild Quiet Series

¥ Technology

to guarantee quiet output switching and improve dynamic

threshold performance. FACT Quiet Series

¥ features

GTO

¥ output control and undershoot corrector in addition

to a split ground bus for superior performance.

The ACTQ14 has hysteresis between the positive-going

and negative-going input thresholds (typically 1.0V) which

is determined internally by transistor ratios and is essen-

tially insensitive to temperature and supply voltage varia-

tions.

Features

s Guaranteed simultaneous switching noise level and

dynamic threshold performance

s Improved latch-up immunity

s Guaranteed pin-to-pin skew AC performance

s Outputs source/sink 24 mA

Ordering Code:

Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.

Logic Symbol

IEEE/IEC

Pin Descriptions

Connection Diagram

Function Table

Quiet Series

¥, FACT Quiet Series¥ and GTO¥ are trademarks of Fairchild Semiconductor Corporation.

Order Number

Package Number

Package Description

74ACTQ14SC

M14A

14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow

74ACTQ14MTC

MTC14

14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide

74ACTQ14PC

N14A

14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide

Pin Names

Description

Inputs

Outputs

Input

Output

AO

LH

HL