ST 74V1T125 User Manual

1/10April 2004

■ HIGH SPEED: t

PD

= 3.5ns (TYP.) at V

CC

=5V

■ LOW POWER DISSIPATION:

I

CC

=1µA(MAX.) at T

A

=25°C

■ COMPATIBLE WITHTTL OUTPUTS:

V

IH

=2V(MIN),V

IL

=0.8V(MAX)

■ POWER DOWN PROTECTION ON INPUTS

■ SYMMETRICAL OUTPUTIMPEDANCE:

|I

OH

|=I

OL

=8mA(MIN)atV

CC

=4.5V

■ BALANCED PROPAGATION DELAYS:

t

PLH

≅ t

PHL

■ OPERATING VOLTAGE RANGE:

V

CC

(OPR) = 4.5V to 5.5V

DESCRIPTION

The 74V1T125 is an advanced high-speed CM OS

SINGLE BUS BUFFER fabricatedwith sub-micron

silicon gate and double-layer me tal wiring C

2

MOS

technology.

3-STATE control input G

has to be set HIGH t o

place the out put into the high impedance state.

Power down protection is provided on all inputs

and 0 to 7V can be accepted on inputs with no

regard to the supply voltage. This device can be

usedto interface 5V to 3V.

74V1T125

SINGLE BUS BUFFER (3-STATE)

PIN CONNECTION AND IEC LOGIC SYMBOLS

ORDER CODES

PACKAGE T & R

SOT23-5L 74V1T125STR

SOT323-5L 74V1T125CTR

SOT323-5LSOT23-5L

74V1T125

2/10

INPUT EQUIVALENT CIRCUIT PIN DESCRIPTION

TRUTH TABLE

X : Don’t Care

Z : High Impedance

ABSOLUTE MAXIMUM RATINGS

Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is

not implied

RECOMMENDED OPERATING CONDITIONS

1) V

IN

from0.8V to 2V

PIN N° SYMBOL NAME AND FUNCTION

11G

Output Enable Input

2 1A Data Input

4 1Y Data Output

3 GND Ground (0V)

5

V

CC

Positive Supply Voltage

AG

Y

XHZ

LLL

HLH

Symbol Parameter Value Unit

V

CC

Supply Voltage

-0.5 to +7.0 V

V

I

DC Input Voltage

-0.5 to +7.0 V

V

O

DC Output Voltage -0.5 to V

CC

+0.5

V

I

IK

DC Input Diode Current

-20 mA

I

OK

DC Output Diode Current

± 20 mA

I

O

DC Output Current

± 25 mA

I

CC

or I

GND

DC V

CC

or Ground Current

± 50 mA

T

stg

Storage Temperature

-65 to +150 °C

T

L

Lead Temperature (10 sec)

300 °C

Symbol Parameter Value Unit

V

CC

Supply Voltage

4.5 to 5.5 V

V

I

Input Voltage

0to5.5 V

V

O

Output Voltage 0 to V

CC

V

T

op

Operating Temperature

-55 to 125 °C

dt/dv

Input Rise and Fall Time (note 1) (V

CC

=5.0± 0.5V)

0 to 20 ns/V

74V1T125

3/10

DC SPECIFICATIONS

AC ELECTRICAL CHARACTERISTICS (Input t

r

=t

f

=3ns)

(*) Voltage range is 5.0V± 0.5V

Symbol Parameter

Test Condition Value

Unit

V

CC

(V)

T

A

= 25°C

-40 to 85°C -55 to 125°C

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

V

IH

High Level Input

Voltage

4.5to

5.5

222V

V

IL

Low Level Input

Voltage

4.5to

5.5

0.8 0.8 0.8 V

V

OH

High Level Output

Voltage

4.5

I

O

=-50 µA 4.4 4.5 4.4 4.4 V

4.5

I

O

=-8 mA 3.94 3.8 3.7

V

OL

Low Level Output

Voltage

4.5

I

O

=50 µA 0.0 0.1 0.1 0.1 V

4.5

I

O

=8 mA 0.36 0.44 0.55

I

OZ

High Impedance

Output Leakage

Current

5.5

V

I

=V

IH

or V

IL

V

O

=V

CC

or GND

±0.25 ± 2.5 ± 5.0 µA

I

I

Input Leakage

Current

0to

5.5

V

I

=5.5VorGND

± 0.1 ± 1.0 ± 1.0 µA

I

CC

Quiescent Supply

Current

5.5

V

I

=V

CC

or GND

11020µA

+I

CC

Additional Worst

Case Supply

Current

5.5

One Input at 3.4V,

other input at V

CC

or GND

1.35 1.5 1.5 mA

Symbol Parameter

Test Condition Value

Unit

V

CC

(V)

C

L

(pF)

T

A

= 25°C

-40 to 85°C -55 to 125°C

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

t

PLH

t

PHL

Propagation Delay

Time

5.0

(*)

15 3.5 6.0 1.0 7.0 1.0 8.0

ns

5.0

(*)

50 3.8 6.5 1.0 7.5 1.0 8.5

t

PLZ

t

PHZ

Output Disable

Time

5.0

(*)

15 3.9 5.0 1.0 6.0 1.0 7.0

ns

5.0

(*)

50 4.3 7.0 1.0 8.0 1.0 9.0

t

PZL

t

PZH

Output Enable

Time

5.0

(*)

15 4.3 7.0 1.0 8.0 1.0 9.0

ns

5.0

(*)

50 4.7 7.5 1.0 8.5 1.0 9.5