5-1

FACT DATA

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 mA

• ′ACT14 Has TTL Compatible Inputs

FUNCTION TABLE

Input

Output

A

O

L

H

H

L

MAXIMUM RATINGS*

Symbol

Parameter

Value

Unit

VCC

DC Supply Voltage (Referenced to GND)

–0.5 to +7.0

V

Vin

DC Input Voltage (Referenced to GND)

–0.5 to VCC +0.5

V

Vout

DC Output Voltage (Referenced to GND)

–0.5 to VCC +0.5

V

Iin

DC Input Current, per Pin

±20

mA

Iout

DC Output Sink/Source Current, per Pin

±50

mA

ICC

DC VCC or GND Current per Output Pin

±50

mA

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.

MC74AC14

MC74ACT14

HEX INVERTER

SCHMITT TRIGGER

N SUFFIX

CASE 646-06

PLASTIC

D SUFFIX

CASE 751A-03

PLASTIC

13

14

12

11

10

9

8

2

1

3

4

5

6

7

GND

VCC