Datasheet 74AC14TTR, 74AC14MTR, 74AC14M, 74AC14B Datasheet (SGS Thomson Microelectronics)

74AC14

HEX SCHMITT INVERT ER

■ HIGH SPEED: t

■ LOW POWER DISSIPATION:

I

= 4µA(MAX.) at TA=25°C

CC

■ 50Ω TRASMISSION LINE DRIVING

= 4.5ns (TYP.) at VCC = 5V

PD

CAPABILITY

■ SYMMETRICAL OUTPUT IMPEDANCE:

|I

| = IOL = 24mA (MIN)

OH

■ BALANCED PROPAGATION DELAYS:

t

≅ t

PLH

■ OPERATING VOLTAGE RANGE:

V

CC

■ PIN AND FUNCTION COMPATIBLE WITH

PHL

(OPR) = 2V to 6V

74 SERIES 14

■ IMPROVED LATCH-UP IMMUNITY

DESCRIPTION

The 74AC14 is an advanced high-speed CMOS
HEX SCHMITT TRIGGER INVERTER fabricated
with sub-micron silicon gate and double-layer
metal wiring C

2

MOS technology.
The internal circuit is composed of 3 stages
including buffer output , which enables high noise
immunity and stable output.

TSSOPDIP SOP

ORDER CODES

PACKAGE TUBE T & R

DIP 74AC14B

SOP 74AC14M 74AC14MTR

TSSOP 74AC14TTR

This together with its schmitt trigger function
allows it to be used on line receivers with slow
rise/fall input signals.
All inputs and outputs are equipped with
protection circuits against stat ic discharge, giving
them 2KV ESD immunity and transient excess
voltage.

PIN CONNECTION AND IEC LOGIC SYMBOLS

1/8July 2001

74AC14

INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION

PIN No SYMBOL NAME AND FUNCTION

1, 3, 5, 9, 1 1,

13

2, 4, 6, 8, 10,

12

7 GND Ground (0V)

14

TRUTH TABLE

ABSOLUTE MAXIMUM RATINGS

Symbol Parameter Value Unit

V

V

V

I

I

OK

I

I

or I

CC

T

T

Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied.

Supply Voltage

CC

DC Input Voltage -0.5 to VCC + 0.5

I

DC Output Voltage -0.5 to VCC + 0.5

O

DC Input Diode Current

IK

DC Output Diode Current
DC Output Current

O

DC VCC or Ground Current

GND

Storage Temperature

stg

Lead Temperature (10 sec)

L

1A to 6A Data Inputs

1Y to 6Y Data Outputs

V

CC

Positive Supply Voltage

AY

LH

HL

-0.5 to +7 V
V
V

± 20 mA
± 20 mA
± 50 mA

± 300 mA

-65 to +150 °C
300 °C

RECOMMENDED OPERATING CONDITIONS

Symbol Parameter Value Unit

V

V

V

T

2/8

Supply Voltage

CC

Input Voltage 0 to V

I

Output Voltage 0 to V

O

Operating Temperature

op

2 to 6 V

CC
CC

-55 to 125 °C

V
V

DC SPECIFICATIONS

Test Condition Value

T

Symbol Parameter

V

CC

(V)

V

High Level Input

t+

Voltage

3.0
T

=Worst Case

A

5.5 3.9 3.9 3.9

V

t-

Low Level Input
Voltage

3.0
T

=Worst Case

A

5.5 1.1 1.1 1.1

Hysteresis Voltage 3.0

V

h

T

=Worst Case

A

5.5 0.5 1.6 0.5 1.6 1.6

V

High Level Output

OH

Voltage

3.0

4.5

5.5

3.0

4.5

5.5

V

Low Level Output

OL

Voltage

3.0

4.5

5.5

3.0

4.5

5.5

I

Input Leakage Cur-

I

rent

I

I

OLD

I

OHD

1) Maxim um test duration 2ms, one output loaded at tim e

2) Incid ent wave switching is guaranteed on transmission l i nes with impe dances as low as 50Ω

Quiescent Supply

CC

Current
Dynamic Output

Current (note 1, 2)

5.5

5.5

5.5

=-50 µA

I

O

I

=-50 µA

O

I

=-50 µA

O

I

=-12 mA

O

I

=-24 mA

O

I

=-24 mA

O

IO=50 µA
I

=50 µA

O

I

=50 µA

O

I

=12 mA

O

I

=24 mA

O

I

=24 mA

O

= VCC or GND

V

I

= VCC or GND

V

I

= 1.65 V max

V

OLD

V

= 3.85 V min

OHD

= 25°C

A

Min. Typ. Max. Min. Max. Min. Max.

2.2 2.2 2.2

0.5 0.5 0.5

0.3 1.2 0.3 1.2 1.2

2.9 2.99 2.9 2.9

4.4 4.49 4.4 4.4

5.4 5.49 5.4 5.4

2.56 2.46 2.46

3.86 3.76 3.76

4.86 4.76 4.76

0.002 0.1 0.1 0.1

0.001 0.1 0.1 0.1

0.001 0.1 0.1 0.1

0.36 0.44 0.44

0.36 0.44 0.44

0.36 0.44 0.44

± 0.1 ± 1 ± 1 µA

44040µA

74AC14

-40 to 85°C -55 to 125°C

75 50 mA

-75 -50 mA

Unit

V4.5 3.2 3.2 3.2

V4.5 0.9 0.9 0.9

V4.5 0.4 1.4 0.4 1.4 1.4

V

V

AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, RL = 500 Ω, Input tr = tf = 3ns)

Test Condition Value

= 25°C

Symbol Parameter

t

PLH tPHL

(*) Vol tage range is 3.3V ± 0.3V
(**) Voltage range is 5.0V ±

Propagation Delay
Time

0.5V

V

3.3

5.0

(V)

CC

(*)

(**)

T

A

Min. Typ. Max. Min. Max. Min. Max.

1.5 6.0 11.0 1.0 15.0 1.0 16.0

1.5 4 8.0 1.0 11.0 1.0 12.0

-40 to 85°C -55 to 125°C

Unit

ns

3/8

74AC14

CAPACITIVE CHARACTERISTICS

Test Condition Value

T

Symbol Parameter

C

C

Input Capacitance

IN

Power Dissipation

PD

Capacitance

V

CC

(V)

5.0 4 pF

5.0

= 10MHz

f

IN

= 25°C

A

Min. Typ. Max. Min. Max. Min. Max.

35 pF

(note 1)

1) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without

load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. I

TEST CIRCUIT

-40 to 85°C -55 to 125°C

= CPD x VCC x fIN + ICC/6 (per gate)

CC(opr)

Unit

CL = 50pF or equivalent (includes jig and probe capacitance)

= R1 = 500Ω or equivalent

R

L

= Z

R

of pulse generator (typically 50Ω)

T

OUT

WAVEFORM: PROPAGATION DELAYS (f=1MHz; 50% duty cycle)

4/8

Plastic DIP-14 MECHANICAL DATA

mm. inch

DIM.

MIN. TYP MAX. MIN. TYP. MAX.

a1 0.51 0.020

B 1.39 1.65 0.055 0.065
b 0.5 0.020

b1 0.25 0.010

D 20 0.787
E 8.5 0.335

e 2.54 0.100

e3 15.24 0.600

F 7.1 0.280

74AC14

I 5.1 0.201

L 3.3 0.130

Z 1.27 2.54 0.050 0.100

P001A

5/8

74AC14

SO-14 MECHANICAL DATA

DIM.

A 1.75 0.068
a1 0.1 0.2 0.003 0.007
a2 1.65 0.064

b 0.35 0.46 0.013 0.018

b1 0.19 0.25 0.007 0.010

C 0.5 0.019
c1 45° (typ.)

D 8.55 8.75 0.336 0.344

E 5.8 6.2 0.228 0.244

e 1.27 0.050

e3 7.62 0.300

F 3.8 4.0 0.149 0.157

G 4.6 5.3 0.181 0.208

L 0.5 1.27 0.019 0.050
M 0.68 0.026
S8° (max.)

MIN. TYP MAX. MIN. TYP. MAX.

mm. inch

6/8

PO13G

74AC14

TSSOP14 MECHANICAL DATA

mm. inch

DIM.

MIN. TYP MAX. MIN. TYP. MAX.

A 1.2 0.047

A1 0.05 0.15 0.002 0.004 0.006

A2 0.8 1 1.05 0.031 0.039 0.041

b 0.19 0.30 0.007 0.012

c 0.09 0.20 0.004 0.0089

D 4.9 5 5.1 0.193 0.197 0.201

E 6.2 6.4 6.6 0.244 0.252 0.260

E1 4.3 4.4 4.48 0.169 0.173 0.176

e 0.65 BSC 0.0256 BSC

K0° 8°0° 8°

L 0.45 0.60 0.75 0.018 0.024 0.030

A2

A

A1

b

e

c

K

L

E

D

E1

PIN 1 IDENTIFICATION

1

0080337D

7/8

74AC14

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mentioned in this publication ar e subject to change without notice. This publication supersedes and replaces all information
previously supplied. S TMicroelectronics products are not authorized for use as critica l components in life suppo rt devices or
systems without express written approval of STMicroelectronics.

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