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

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

I

OK

I

or I

CC

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

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

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

=-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

0.36 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

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