Fairchild Semiconductor 74ACT14SCX, 74ACT14SC, 74ACT14PC, 74ACT14MTCX, 74ACT14MTC Datasheet

74AC14 • 74ACT14
Hex Inverter with Schmitt Trigger Input

74AC14 • 74ACT14 Hex Inverter with Schmitt Trigger Input

November 1988
Revised December 1999

General Description

The 74AC14 and 74ACT14 co ntain six invert er gates ea ch
with a Schmitt trigger input. They are capable of transform­ing slowly changing input signals into sharply defined, jitter­free output signals. In ad dition, they have a great er noise
margin than conventional inverters.

The 74AC14 and 74ACT14 have hysteresis between the
positive-going and negative-going input thresholds (typi­cally 1.0V) which is determined internally by transistor
ratios and is essentially insensitive to temperature and sup­ply voltage variations.

Features

■ ICC reduced by 50%

■ Outputs source/sink 24 mA

■ 74ACT14 has TTL-compatible inputs

Ordering Code:

Order Number Package Number Package Description

74AC14SC M14A 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150” Narrow Body
74AC14SJ M14D 14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74AC14MTC MTC14 14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MS-153, 4.4mm Wide
74AC14PC N14A 14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide
74ACT14SC M14A 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150” Narrow Body
74ACT14MTC MTC14 14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MS-153, 4.4mm Wide
74ACT14PC N14A 14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide

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

Logic Symbol

IEEE/IEC

Connection Diagram

Function Table

Pin Descriptions

Pin Names Description

I

n

O

n

FACT is a trademark of Fairchild Semiconductor Corporation.

© 1999 Fairchild Semiconductor Corporation DS009917 www.fairchildsemi.com

Inputs
Outputs

Input Output

AO

LH
HL

Absolute Maximum Ratings(Note 1) Recommended Operating

Supply Voltage (VCC) −0.5V to +7.0V
DC Input Diode Current (I

V

= −0.5V −20 mA

I

= VCC + 0.5V +20 mA

V

I

DC Input Voltage (V
DC Output Diode Current (I

= −0.5V −20 mA

V

74AC14 • 74ACT14

O

V

= VCC + 0.5V +20 mA

O

DC Output Voltage (V

)

IK

) −0.5V to VCC + 0.5V

I

)

OK

) −0.5V to VCC + 0.5V

O

DC Output Source

or Sink Current (I

DC V

or Ground Current

CC

per Output Pin (I
Storage Temperature (T
Junction Temperature (T

) ±50 mA

O

or I

CC

) ±50 mA

GND

) −65°C to +150°C

STG

)

J

PDIP 140°C

Conditions

Supply Voltage ( V

AC 2.0V to 6.0V

ACT 4.5V to 5.5V
Input Voltage (V
Output Voltage (VO) 0V to V
Operating Temperature (TA) −40°C to +85°C

Note 1: Absolute maximum ratings are those values beyond which damage
to the device may occur. The databook specifications should be met, with­out exception, to ensure that the system design is reliable over its power
supply, temperature, and ou tput/inp ut loadi ng varia bles. Fairchild does no t
recommend operat ion of FACT circuits outsid e databook specificat ions.

)

CC

) 0V to V

I

DC Electrical Characteristics for AC

V

Symbol Parameter

V

OH

V

OL

IIN (Note 4) Maximum Input Leakage Current 5.5 ±0.1 ±1.0 µAVI = VCC, GND
V

t+

V

t−

V

H(MAX)

V

H(MIN)

I

OLD

I

OHD

I

CC

(Note 4) Supply Current or GND

Note 2: All outputs loaded; thresholds on input associated with output under test.
Note 3: Maximum test dura tio n 2. 0 ms, one output loaded at a time.
Note 4: I

Minimum HIGH Level 3.0 2.99 2.9 2.9

Maximum LOW Level 3.0 0.002 0.1 0.1

Maximum Positive 3.0 2.2 2.2

Minimum Negative 3.0 0.5 0.5

Maximum Hysteresis 3.0 1.2 1.2

Minimum Hysteresis 3.0 0.3 0.3

Minimum Dynamic 5.5 75 mA V
Output Current (Note 3) 5.5 −75 mA V
Maximum Quiescent

and ICC @ 3.0V are guaranteed to be less than or eq ual to the respective lim it @ 5. 5V VCC.

IN

CC

(V) Typ Guaranteed Limits

5.55.495.4 5.4

3.0 2.56 2.46

4.5 3.86 3.76 IOH = 24 mA

5.5 4.86 4.76 IOH = 24 mA (Note 2)

5.5 0.001 0.1 0.1

3.0 0.36 0.44

4.5 0.36 0.44 I

5.5 0.36 0.44 I

5.5 3.9 3.9

5.5 1.1 1.1

5.5 1.6 1.6

5.5 0.5 0.5

5.5 2.0 20.0 µA

TA = +25°C

TA = −40°C to +85°C

Units Conditions

VI

V

VI

V

= −50 µAOutput Voltage 4.5 4.49 4.4 4.4

OUT

IOH = 12

= 50 µAOutput Voltage 4.5 0.001 0.1 0.1

OUT

IOL = 12

24 mA

OL

= 24 mA (Note 2)

OL

= Worst CaseThreshold 4.5 3.2 3.2 V

T

A

TA = Worst CaseThreshold 4.5 0.9 0.9 V

TA = Worst Case4.5 1.4 1.4 V

TA = Worst Case4.5 0.4 0.4 V

OLD
OHD

VIN = V

CC
CC

= 1.65V Max

= 3.85V Min

CC

www.fairchildsemi.com 2

AC Electrical Characteristics for AC

T

V

Symbol Parameter

CC

(V)

(Note 5) Min Typ Max Min Max

t

PLH

Propagation Delay 3.3 1.5 9.5 13.5 1.5 15.0

5.0 1.5 7.0 10.0 1.5 11.0

t

PHL

Propagation Delay 3.3 1.5 7.5 11.5 1.5 13.0

5.0 1.5 6.0 8.5 1.5 9.5

Note 5: Voltage Range 3.3 is 3.3V ± 0.3V

Voltage Range 5.0 is 5.0V ± 0.5V

DC Electrical Characteristics for ACT

V

Symbol Parameter

V

Minimum HIGH Level 4.5 1.5 2.0 2.0

IH

CC

(V) Typ Guaranteed Limits

Input Voltage 5.5 1.5 2.0 2.0 or V

V

Maximum LOW Level 4.5 1.5 0.8 0.8

IL

Output Voltage 5.5 1.5 0.8 0.8 or V

V

Minimum HIGH Level 4.5 4.49 434 4.4

OH

Output Voltage 5.5 5.4 9 5.4 5.4

4.5 3.86 3.76 IOH = −24 mA

5.5 4.86 4.76 IOH = −24 mA (Note 6)

V

Maximum LOW Level 4.5 0.001 0.1 0.1

OL

Output Voltage 5.5 0.001 0.1 0.1

4.5 0.36 0.44 IOL = 24 mA

5.5 0.36 0.44 I

I

IN

V

Maximum Input Leakage Current 5.5 ±0.1 ±1.0 µAVI = VCC, GND
Maximum Hysteresis 4.5 1.4 1.4

H(MAX)

5.5 1.6 1.6

V

Minimum Hysteresis 4.5 0.4 0.4

H(MIN)

5.5 0.5 0.5

V

Maximum Positive 4.5 2.0 2.0

t+

Threshold 5.5 2.0 2.0

V

Minimum Negative 4.5 0.8 0.8

t−

Threshold 5.5 0.8 0.8

I

CCT

I

OLD

I

OHD

I

CC

Note 6: All outputs loaded; thres holds on input associated with output under test.
Note 7: Maximum test duration 2.0 ms, one output loaded at a time.

Maximum ICC/Input 5.5 0.6 1.5 mA VI = VCC − 2.1V
Minimum Dynamic 5.5 75 mA V
Output Current (Note 7) 5.5 −75 mA V
Maximum Quiescent
Supply Current or GND

5.5 2.0 20.0 µA

TA = +25°C

= +25°CT

A

C

= 50 pF CL = 50 pF

L

= −40°C to +85°C

T

A

= −40°C to +85°C

A

Units Conditions

V

OUT

V

V

OUT

V

VI

OUT

VIN = VIL or V

V

VI

OUT

VIN = VIL or V

V

= 24 mA (Note 6)

OL

VTA = Worst Case

VTA = Worst Case

VTA = Worst Case

VTA = Worst Case

OLD
OHD

VIN = V

= 0.1V

− 0.1V

CC

= 0.1V

− 0.1V

CC

= −50µA

= 50 µA

= 1.65V Max
= 3.85V Min

CC

74AC14 • 74ACT14

Units

ns

ns

IH

IH

3 www.fairchildsemi.com