74LVX238MTR datasheet(1/9 Pages) STMICROELECTRONICS

Teilenummer	74LVX238MTR

Bauteilbeschribung	LOW VOLTAGE CMOS 3 TO 8 LINE DECODER WITH 5V TOLERANT INPUTS

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July 2001

s

HIGH SPEED :

tPD = 5.5ns (TYP.) at VCC = 3.3V

s

5V TOLERANT INPUTS

s

INPUT VOLTAGE LEVEL :

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

s

LOW POWER DISSIPATION:

ICC = 2 µA (MAX.) at TA=25°C

s

LOW NOISE:

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

s

SYMMETRICAL OUTPUT IMPEDANCE:

|IOH| = IOL = 4mA (MIN)

s

BALANCED PROPAGATION DELAYS:

tPLH ≅ tPHL

s

OPERATING VOLTAGE RANGE:

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

s

PIN AND FUNCTION COMPATIBLE WITH

74 SERIES 138

s

IMPROVED LATCH-UP IMMUNITY

s

POWER DOWN PROTECTION ON INPUTS

DESCRIPTION

The 74LVX238 is a low voltage CMOS 3 TO 8

LINE

DECODER

fabricated

with

sub-micron

silicon gate and double-layer metal wiring C2MOS

technology. It is ideal for low power, battery

operated and low noise 3.3V applications.

If the device is enabled, 3 binary select (A, B, and

C) determine which one of the outputs will go high.

If enable input G1 is held low or either G2A or G2B

is held high, the decoding function is inhibited and

all the 8 outputs go low.

Tree enable inputs are provided to ease cascade

connection and application of address decoders

for memory systems.

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

system. It combines high speed performance with

the true CMOS low power consumption.

All

inputs

and

outputs

are

equipped

with

protection circuits against static discharge, giving

them 2KV ESD immunity and transient excess

voltage.

74LVX238

LOW VOLTAGE CMOS 3 TO 8 LINE DECODER

WITH 5V TOLERANT INPUTS

PIN CONNECTION AND IEC LOGIC SYMBOLS

ORDER CODES

PACKAGE

TUBE

T & R

SOP

74LVX238M

74LVX238MTR

TSSOP

74LVX238TTR

TSSOP

SOP

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