Datasheet 74LVX126TTR, 74LVX126MTR Datasheet (SGS Thomson Microelectronics)

74LVX126

LOW VOLTAGE CMOS QUAD BUS BUFFERS (3-STATE)

WITH 5V TOLERANT INPUTS

■ HIGH SPEED:

t

=4.4ns (TYP.) at VCC = 3.3V

PD

■ 5V TOLERANT INPUTS

■ POWER-DOWN PROTECTION ON INPUTS

■ INPUT VOLTAGE LEVEL:

V

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

IL

■ LOW POWER DISSIPATION:

I

= 2 µA (MAX.) at TA=25°C

CC

■ LOW NOISE:

V

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

OLP

■ SYMMETRICAL OUTPUT IMPEDANCE:

|I

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

OH

■ BALANCED PROPAGATION DELAYS:

t

≅ t

PLH

■ OPERATING VOLTAGE R ANGE:

V

CC

■ PIN AND FUNCTION COMPATIBLE WITH

PHL

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

74 SERIES 126

■ IMPROVED LATCH-UP IMMUNITY

DESCRIPTION

The 74LVX126 is a low voltage CMOS QUAD
BUS BUFFERs fabricated with sub-micron silic on
gate and double-layer metal wiring C

2

MOS
technology. It is ideal for low power, battery
operated and low noise 3.3V applications.

TSSOPSOP

ORDER CODES

PACKAGE TUBE T & R

SOP 74LVX126M 74LVX126MTR

TSSOP 74LVX126TTR

This device requires the 3-STATE control input G
to be set low to pl ace the output go in to the hi gh
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
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.

PIN CONNECTION AND IEC LOGIC SYMBOLS

1/9July 2001

74LVX126

INPUT EQUIVALENT CIRCUIT PIN DESCRIPTION

PIN No SYMBOL NAME AND FUNCTION

1, 4, 10, 13 1G to 4G Output Enable Inputs

2, 5, 9, 12 1A to 4A Data Inputs
3, 6, 8, 11 1Y to 4Y Data Outputs

7 GND Ground (0V)

14

V

CC

TRUTH TABLE

AGY

XLZ

LHL

HHH

X :Don‘t Care
Z : High Impedance

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

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

Positive Supply Voltage

-0.5 to +7.0 V

-0.5 to +7.0 V
V

- 20 mA

± 20 mA
± 25 mA
± 50 mA

-65 to +150 °C

300 °C

RECOMMENDED OPERATING CONDITIONS

Symbol Parameter Value Unit

V

V

V

T

dt/dv

1) Truth T abl e guaranteed: 1.2V to 3.6V

2) V

from 0.8V to 2.0V

IN

2/9

Supply Voltage (note 1)

CC

Input Voltage

I

Output Voltage 0 to V

O

Operating Temperature

op

Input Rise and Fall Time (note 2) (V

CC

= 3V)

2 to 3.6 V
0 to 5.5 V

CC

-55 to 125 °C
0 to 100 ns/V

V

DC SPECIFICATIONS

Symbol Parameter

V

V

V

V

I

I

High Level Input

IH

Voltage

Low Level Input

IL

Voltage

High Level Output

OH

Voltage

Low Level Output

OL

Voltage

High Impedance

OZ

Output Leakage
Current

Input Leakage

I

I

Current
Quiescent Supply

CC

Current

74LVX126

Test Condition Value

T

= 25°C

V

CC

(V)

A

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

2.0 1.5 1.5 1.5
222

3.6

2.4 2.4 2.4

2.0 0.5 0.5 0.5

3.6 0.8 0.8 0.8

2.0

3.0

2.0

3.0

3.6

3.6

3.6

IO=-50 µA
I

=-50 µA

O

I

=-4 mA

O

IO=50 µA
I

=50 µA

O

I

=4 mA

O

= VIH or V

V

I

IL

VO = VCC or GND

= 5.5V or GND

V

I

= VCC or GND

V

I

1.9 2.0 1.9 1.9

2.9 3.0 2.9 2.9

2.58 2.48 2.4

0.0 0.1 0.1 0.1

0.0 0.1 0.1 0.1

±0.25 ± 2.5 ± 5 µA

-40 to 85°C -55 to 125°C

0.36 0.44 0.55

± 0.1 ± 1 ± 1 µA

22020µA

Unit

V3.0

V3.0 0.8 0.8 0.8

V3.0

V3.0

DYNAMIC SWITCHING CHARACTERISTICS

Test Condition Value

= 25°C

Symbol Parameter

V
V

Dynamic Low

OLP

Voltage Quiet

OLV

Output (note 1, 2)

V

CC

(V)

3.3

T

A

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

0.3 0.5

-0.5 -0.3

Dynamic High

V

IHD

Voltage Input

3.3 2.0

= 50 pF

C

L

(note 1, 3)
Dynamic Low

V

ILD

Voltage Input

3.3 0.8

(note 1, 3)

1) Worst c ase package.

2) Max number of output s defined as (n). Dat a i nputs are driven 0V to 3.3V, (n -1) outputs switc hi ng and one out put 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
(V

), f=1MHz.

IHD

-40 to 85°C -55 to 125°C

ILD

Unit

V

), 0V to threshold

3/9

74LVX126

AC ELECTRICAL CHARACTERISTICS (Input tr = tf = 3ns)

Test Condition Value

T

Symbol Parameter

t

Propagation Delay

PLH
PHL

Time

t

3.3

3.3

PZL
PZH

Output Enable
Time

t
t

3.3

3.3

t

Output Disable

PLZ

t

t

OSLH

t

OSHL

1) Skew is defined as the absolute value of the difference between the actual propagation delay for any two outputs of the same device switch­ing in the same directio n, either HIGH or LO W

2) Param eter guarante ed by design
(*) Vol tage rang e i s 3.3V ±

Time

PHZ

Output to Output
Skew Time (note
1,2)

3.3

3.3

0.3V

C

V

CC

(V)

2.7

2.7

L

(pF)

15 5.8 8.0 1.0 9.6 1.0 11.5
50 7.0 10.5 1.0 12.6 1.0 15.0

(*)

15 4.4 6.2 1.0 8.5 1.0 9.5

(*)

50 5.9 9.7 1.0 12.0 1.0 13.5

2.7 15 8.9 11.5 1.0 12.5 1.0 12.5

2.7 50 10.0 14.0 1.0 16.0 1.0 16.0

(*)

15 8.0 10.4 1.0 11.5 1.0 11.5

(*)

50 8.9 12 1.0 13.0 1.0 13.0

2.7 50 7.2 11.0 1.0 13.0 1.0 15.6

(*)

50 6.0 8.5 1.0 11.0 1.0 13.0

2.7 50 0.5 1.0 1.5 1.5

(*)

50 0.5 1.0 1.5 1.5

= 25°C

A

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

-40 to 85°C -55 to 125°C

Unit

ns

ns

ns

ns

CAPACITIVE CHARACTERISTICS

Test Condition Value

T

Symbol Parameter

C

C

C

Input Capacitance

IN

Output

OUT

Capacitance
Power Dissipation

PD

Capacitance

V

CC

(V)

3.3 4101010pF

3.3 6 pF

3.3 14 pF

= 25°C

A

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

(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

-40 to 85°C -55 to 125°C

= CPD x VCC x fIN + ICC/4 (per c ircuit )

CC(opr)

Unit

4/9

TEST CIRCUIT

TEST SWITCH

t

, t

PLH

PHL

, t

t

PZL

PLZ

t

, t

PZH

PHZ

CL =15/50pF or equivalent (includes jig and probe capacitance)

= R1 = 1KΩ or equivalent

R

L

= Z

R

of pulse generator (typically 50Ω)

T

OUT

Open

V

CC

GND

74LVX126

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

5/9

74LVX126

WAVEFORM 2: OUTPUT ENABLE AND DISABLE TIME (f=1MHz; 50% duty cycle)

6/9

SO-14 MECHANICAL DATA

74LVX126

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. M AX.

mm. inch

PO13G

7/9

74LVX126

TSSOP14 MECHANICAL DATA

mm. inch

DIM.

MIN. TYP MAX. MIN. TYP. M AX.

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

8/9

1

0080337D

74LVX126

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