© Semiconductor Components Industries, LLC, 2000

March, 2000 – Rev. 8

1

Publication Order Number:

MC74HC14A/D

MC74HC14A

Hex Schmitt-Trigger

Inverter

High–Performance Silicon–Gate CMOS

The MC74HC14A is identical in pinout to the LS14, LS04 and the

HC04. The device inputs are compatible with Standard CMOS

outputs; with pullup resistors, they are compatible with LSTTL

outputs.

The HC14A is useful to “square up” slow input rise and fall times.

Due to hysteresis voltage of the Schmitt trigger, the HC14A finds

applications in noisy environments.

LOGIC DIAGRAM

Y1

A1

A2

A3

A4

A5

A6

Y2

Y3

Y4

Y5

Y6

1

3

5

9

11

13

2

4

6

8

10

12

Y = A

Pin 14 = VCC

Pin 7 = GND

Pinout: 14–Lead Packages (Top View)

13

14

12

11

10

9

8

2

1

3

4567

VCC

A6

Y6

A5

Y5

A4

Y4

A1

Y1

A2

Y2

A3

Y3

GND

Device

Package

Shipping

ORDERING INFORMATION

MC74HC14AN

PDIP–14

2000 / Box

MC74HC14AD

SOIC–14

http://onsemi.com

55 / Rail

MC74HC14ADR2

SOIC–14

2500 / Reel

MARKING

DIAGRAMS

A

= Assembly Location

WL or L

= Wafer Lot

YY or Y

= Year

WW or W = Work Week

MC74HC14ADT

TSSOP–14

96 / Rail

MC74HC14ADTR2

TSSOP–14

2500 / Reel

TSSOP–14

DT SUFFIX

CASE 948G

HC

14A

ALYW

1

14

1

14

PDIP–14

N SUFFIX

CASE 646

MC74HC14AN

AWLYYWW

SOIC–14

D SUFFIX

CASE 751A

1

14

HC14A

AWLYWW

L

H

FUNCTION TABLE

Inputs

Outputs

A

H

L

Y