ST 74LX1G14 User Manual

查询74LX1G14供应商

LOW VOLTAGE CMOS SINGLE SCHMITT INVERTER

■ 5V TOLERANT INPUTS

■ HIGH SPEED:t

■ LOW POWER DISSIPATION:

I

=1µA(MAX.)atTA=25°C

CC

■ TYPICAL HYSTERESIS: V

■ POWER DOWN PROTECTION ON INPUTS

AND OUTPUTS

■ SYMMETRICAL OUTPUT IMPEDANCE:

|I

|=IOL= 24mA (MIN) at VCC=3V

OH

■ BALANCED PROPAGATION DELAYS:

t

≅ t

PLH

PHL

■ OPERATING VOLTAGE RANGE:

V

(OPR) = 1.65V to 5.5V

CC

(1.2V Data Retention)

■ IMPROVED LATCH-UP IMMUNITY

DESCRIPTION

The 74LX 1G14 is a low voltag e CMOS SING LE SCHMITT INVERTER f abricated with sub-micron silicon gate and double -layer metal wiring C technology. It is ideal f or 1.65 to 5.5 V power and low noise applications. The internal circuit is composed of 3 stages including buffer output, which provide high noise immunity and stable output. Powerdownprotectionisprovidedoninputand output and 0 to 7V can be accepted on inputs with

= 7. 5ns (MAX.) at VCC=3V

PD

=1V at VCC=4.5V

h

operations and low

CC

2

MOS

74LX1G14

WITH 5V TOLERANT INPUT

SOT323-5LSOT23-5L

ORDER CODES

PACKAGE T & R

SOT23-5L 74LX1G14STR

SOT323-5L 74LX1G14CTR

no regard to the supply voltage. It c an be interfaced t o 5V signal environment for inputs in mixed 3.3/5V system. Pin configuration and func tion are the same as those of the 74LX1G04 but the 74LX1G14 has hysteresis. This together with its schmitt trigger function allows it to be used on line receivers with slow rise/fall input signals. The input is equipped with protection circuits against static discharge, giving it ESD immunity and transient excess voltage.

PIN CONNECTION AND IEC LOGIC SYMBOLS

1/11December 2002

74LX1G14

INPUT AND O UTPUT EQUIVALENT CIRCUIT

PIN DESCRIPTION TRUTH TABLE

PIN No SYMBOL NAME AND FUNCTION

1 NC Not Connected 2 1A Data Input

AY

LH

HL 4 1Y Data Output 3 GND Ground (0V) 5

V

CC

Positive Supply Voltage

ABSOLUTE MAXIMUM RATINGS

Symbol Parameter² Value Unit

V

V V V

I

OK

I

or I

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.

1) Truth Table guaranteed: 1.2V to 3.6V

2) V

from0.8V to 2V at VCC=3.0V

IN

Supply Voltage

CC

DC Input Voltage

I

DC Output Voltage (VCC= 0V)

O

DC Output Voltage (High or Low State) (note 1) -0.5 to VCC+ 0.5

O

DC Input Diode Current

IK

DC Output Diode Current (note 2) DC Output Current

O

DC VCCor Ground Current per Supply Pin

GND

Storage Temperature

stg

Lead Temperature (10 sec)

L

-0.5 to +7.0 V

-0.5 to +7.0 V V

-50 mA

± 50 mA ± 50 mA

-65 to +150 °C

300 °C

2/11

74LX1G14

RECOMMENDED OPERATING CONDITIONS

Symbol Parameter Value Unit

V

V V V

I

OH,IOL

I

OH,IOL

I

OH,IOL

I

OH,IOL

I

OH,IOL

T

1) Truth Table guaranteed: 1.2V to 3.6V

2) V

from0.8V to 2V atVCC=3.0V

IN

Supply Voltage (note 1)

CC

Input Voltage

I

Output Voltage (VCC= 0V)

O

Output Voltage (High or Low State) 0 to V

O

High or Low Level Output Current (VCC= 4.5 to 5.5V) High or Low Level Output Current (VCC= 3.0 to 3.6V) High or Low Level Output Current (VCC= 2.7 to 3.0V) High or Low Level Output Current (VCC= 2.3 to 2.7V) High or Low Level Output Current (VCC= 1.65 to 2.3V) Operating Temperqture

op

1.65 to 5.5 V 0to5.5 V 0to5.5 V

CC

± 32 mA ± 24 mA ± 12 mA

± 8mA ± 4mA

-55 to 125 °C

V

3/11

74LX1G14

DC SPECIFICATIONS

Test Condition Value

Symbol Parameter

V

I

Positive Input

T+

threshold

V

Negative Input

T-

threshold

High Level Output

OH

Voltage

Low Level Output

OL

Voltage

Hysteresis Voltage 1.65 0.37 0.62 0.37 0.62

V

H

I

Input Leakage

I

Current

I

Power Off Leakage

off

Current Quiescent Supply

CC

Current

V

CC

(V)

-40 to 85 °C -55 to 125 °C

Min. Max. Min. Max.

1.65 0.79 1.16 0.79 1.16

2.3 1.11 1.56 1.11 1.56 3 1.5 1.87 1.5 1.87

4.5 2.16 2.74 2.16 2.74

5.5 2.61 3.33 2.61 3.33

1.65 0.39 0.62 0.39 0.62

2.3 0.58 0.87 0.58 0.87 3 0.84 1.14 0.84 1.14

4.5 1.41 1.79 1.41 1.79

5.5 1.87 2.29 1.87 2.29

=-100 µAVCC-0.1 VCC-0.1

1.65 to 4.5

1.65

2.3

3.0

4.5

1.65 to 4.5

1.65

2.3

3.0

4.5

I

O

=-4 mA

I

O

=-8 mA

I

O

I

=-16 mA

O

=-24 mA

I

O

=-32 mA

I

O

IO=100 µA

=4 mA

I

O

=8 mA

I

O

I

=16 mA

O

=24 mA

I

O

I

=32 mA

O

1.2 1.2

1.9 1.9

2.4 2.4

2.2 2.2

3.8 3.8

0.1 0.1

0.45 0.45

0.3 0.3

0.4 0.4

0.55 0.55

2.3 0.48 0.77 0.48 0.77 3 0.56 0.87 0.56 0.87

4.5 0.71 1.04 0.71 1.04

5.5 0.71 1.11 0.71 1.11

= 0 to 5.5V

1.65 to 5.5

0

1.65 to 5.5

V

I

or VO= 5.5V

V

I

V

I=VCC

or GND

± 10 ±10 µA

10 10 µA

Unit

V

4/11