SGS Thomson Microelectronics 74LCX139M, 74LCX139TTR, 74LCX139MTR Datasheet

1/9September 2001

■ 5V TOLERANT INPUTS

■ HIGH SPEED :

t

PD

= 6.2ns (MAX.) at VCC = 3V

■ POWER DOWN PROTECTION ON INPUT S

AND OUTPUTS

■ SYMMETRICAL OUTPUT IMPEDANCE:

|I

OH

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

■ PCI BUS LEVELS GUARANT EED AT 2 4 mA

■ BALANCED PROPAGATION DELAYS:

t

PLH

≅ t

PHL

■ OPERATING VOLTAGE RANGE:

V

CC

(OPR) = 2.0V to 3.6V (1.5V Data

Retention)

■ PIN AND FUNCTION COMPATIBLE WITH

74 SERIES 139

■ LATCH-UP PERFORMANCE EXCEEDS

500mA (JESD 17)

■ ESD PERFORMANCE:

HBM > 2000V (MIL STD 883 method 3015);
MM > 200V

DESCRIPTION

The 74LCX139 is a low voltage CMOS DU AL 2
TO 4 LINE DECODER/DEMULTIPLEXER
fabricated with sub-micron silicon gate and
double-layer metal wiring C

2

MOS technology.
It is ideal for low power and high speed 3.3V
applications; it can be interfaced to 5V signal
environment for inputs.

The active low enable input can be used for gating
or as a data input for demultiplexing applications.
While the enable input is held high, all four outputs
are high independently of the other inputs.
It has same speed performance at 3. 3V than 5V
AC/ACT family, combined with a lower power
consumption.
All inputs and outputs are equipped with
protection circuits against stat ic discharge, giving
them 2KV ESD immunity and transient excess
voltage.

74LCX139

LOW VOLTAGE CMOS

DUAL 2 TO 4 DECODER/DEMULTIPLEXER

PIN CONNECTION AND IEC LOGIC SYMBOLS

ORDER CODES

PACKAGE TUBE T & R

SOP 74LCX139M 74LCX139MTR

TSSOP 74LCX139TTR

TSSOPSOP

74LCX139

2/9

INPUT AND OUTPUT EQUIVALENT CIRCUIT

PIN DESCRIPTION

TRUTH TABLE

X : Don’t Care

PIN No SYMBOL NAME AND FUNCTION

1, 15 1G

, 2G Enable Inputs

2, 3 1A, 1B Address Inputs

4, 5, 6, 7 1Y0

to 1Y3 Outputs

12, 11, 10, 9 2Y0

to 2Y3 Outputs

14, 13 2A, 2B Address Inputs

8 GND Ground (0V)

16 V

CC

Positive Supply Voltage

INPUTS

OUTPUTS

ENABLE SELECT

G

BAY0Y1 Y2 Y3

HXXHHHH

LLLLHHH
LLHHLHH
LHLHHLH
LHHHHHL

74LCX139

3/9

LOGIC DIAGRAM

This log i c diagram has not be used to esti m ate propaga tion delays

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

1) I

O

absolute ma xim um rating mu st be observed

2) V

O

< GND

RECOMMENDED OPERATING CONDITIONS

1) Truth T abl e guaranteed: 1.5V to 3.6V

2) V

IN

from 0.8V to 2V at VCC = 3.0V

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 (VCC = 0V)

-0.5 to +7.0 V

V

O

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

V

I

IK

DC Input Diode Current

- 50 mA

I

OK

DC Output Diode Current (note 2)

- 50 mA

I

O

DC Output Current

± 50 mA

I

CC

DC Supply Current per Supply Pin

± 100 mA

I

GND

DC Ground Current per Supply Pin

± 100 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)

2.0 to 3.6 V

V

I

Input Voltage

0 to 5.5 V

V

O

Output Voltage (VCC = 0V)

0 to 5.5 V

V

O

Output Voltage (High or Low State) 0 to V

CC

V

I

OH

, I

OL

High or Low Level Output Current (VCC = 3.0 to 3.6V)

± 24 mA

I

OH

, I

OL

High or Low Level Output Current (VCC = 2.7V)

± 12 mA

T

op

Operating Temperature

-55 to 125 °C

dt/dv Input Rise and Fall Time (note 2) 0 to 10 ns/V