SGS Thomson Microelectronics 74LVX541TTR, 74LVX541MTR, 74LVX541M Datasheet

1/9July 2001

■ HIGH SPEED:

t

PD

= 5.0 ns (TYP.) at VCC = 3.3V

■ 5V TOLERANT INPUTS

■ POWER-DOWN PROTECTION ON INPUTS

■ INPUT VOLTAG E LEVEL:

V

IL

= 0.8V, VIH = 2V at VCC =3V

■ LOW POWER DISSIPATION:

I

CC

= 4 µA (MAX.) at TA=25°C

■ LOW NOISE:

V

OLP

= 0.3V (TYP.) at VCC =3.3V

■ SYMMETRICAL OUTPUT IMPED ANCE:

|I

OH

| = IOL = 4 mA (MIN) at VCC =3V

■ BALANCED PROPAGATION DELAYS:

t

PLH

≅ t

PHL

■ OPERATING VOLTAGE RANGE:

V

CC

(OPR) = 2V to 3.6V (1.2V Data Retention)

■ PIN AND FUNCTION COMPATIBLE WITH

74 SERIES 541

■ IMPROVED LATCH-UP IMMUNITY

DESCRIPTION

The 74LVX541 is a low voltage CMOS OCTAL
BUS BUFFER with 3 STATE OUTPUT NON
INVERTING fabricated with sub-micron silicon
gate and double-layer metal wiring C

2

MOS
technology. It is ideal for low power, battery
operated and low noise 3.3V applications.
The 3 STATE control gate opera tes as two input
AND such that if either G1

or G2 are high, all eight

outputs are in the high impedance state.

In order to enhance PC board layout, the
74VHC541 offers a pinout having inputs and
outputs on opposite sides of the package.
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 used to interface 5V to 3V. It
combines high speed performance with the true
CMOS low power consumption.
All inputs and outputs are equipped with
protection circuits against stat ic discharge, giving
them 2KV ESD immunity and transient excess
voltage.

74LVX541

LOW VOLTAGE CMOS OCTAL BUS BUFFER

(3-STATE NON INV.) WITH 5V TOLERANT INPUTS

PIN CONNECTION AND IEC LOGIC SYMBOLS

ORDER CODES

PACKAGE TUBE T & R

SOP 74LVX541M 74LVX541MTR

TSSOP 74LVX541TTR

TSSOPSOP

74LVX541

2/9

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) Truth T abl e guarante ed: 1.2V to 3.6V

2) V

IN

from 0.8V to 2.0V

PIN No SYMBOL NAME AND FUNCTION

1, 19 G1

, G2 Output Enable Inputs

2, 3, 4, 5, 6,

7, 8, 9

A1 to A8 Data Inputs

18, 17, 16,
15, 14, 13,

12, 11

Y1 to Y8 Data Outputs

10 GND Ground (0V)
20 V

CC

Positive Supply Voltage

INPUT OUTPUT

G1

G2 An Yn

HXXZ
XHXZ

LLHH
LLLL

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 VCC + 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 VCC 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 (note 1)

2 to 3.6 V

V

I

Input Voltage

0 to 5.5 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 2) (V

CC

= 3V)

0 to 100 ns/V

74LVX541

3/9

DC SPECIFICATIONS

DYNAMIC SWITCHING CHARACTERISTICS

1) Worst c ase package .

2) Max number of outputs defined as (n). Data inp uts are driven 0V to 3.3V, (n-1) outputs switchi ng and one output at GND.

3) Max number of data inputs (n) switching. (n-1) switching 0V to 3.3V. Inputs under test switching: 3.3V to threshold (V

ILD

), 0V to threshold

(V

IHD

), f=1MHz.

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

2.0 1.5 1.5 1.5
V3.0

2.0 2.0 2.0

3.6

2.4 2.4 2.4

V

IL

Low Level Input
Voltage

2.0 0.5 0.5 0.5
V3.0 0.8 0.8 0.8

3.6 0.8 0.8 0.8

V

OH

High Level Output
Voltage

2.0

IO=-50 µA

1.9 2.0 1.9 1.9
V3.0

I

O

=-50 µA

2.9 3.0 2.9 2.9

3.0

I

O

=-4 mA

2.58 2.48 2.4

V

OL

Low Level Output
Voltage

2.0

I

O

=50 µA

0.0 0.1 0.1 0.1
V3.0

I

O

=50 µA

0.0 0.1 0.1 0.1

3.0

I

O

=4 mA

0.36 0.44 0.55

I

OZ

High Impedance
Output Leakage
Current

3.6

V

I

= VIH or V

IL

VO = VCC or GND

±0.25 ± 2.5 ± 2.5 µA

I

I

Input Leakage
Current

3.6

V

I

= 5V or GND

± 0.1 ± 1 ± 1 µA

I

CC

Quiescent Supply
Current

3.6

V

I

= VCC or GND

44040µA

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

OLP

Dynamic Low
Voltage Quiet
Output (note 1, 2)

3.3

C

L

= 50 pF

0.3 0.8

V

V

OLV

-0.8 -0.3

V

IHD

Dynamic High
Voltage Input
(note 1, 3)

3.3 2.0

V

ILD

Dynamic Low
Voltage Input
(note 1, 3)

3.3 0.8